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View Full Version : My T110 pre unit Triumph build



Tyler
01-05-2010, 9:37 AM
Been working on a '61 T110 in a '58 frame for a while on and off, trying to make some real progress now. Got gas tank mounted Saturday, here are some pics of the mounts using some mild steel threaded bungs. Wanted a hair of lift in the rear hence the bung being raised a bit while the front mount is flush. Also note the holes filled, did a bunch of em 6 or 8 on the front frame loop..

http://farm3.static.flickr.com/2624/4248318160_3977d91338.jpg

http://farm5.static.flickr.com/4071/4248318314_c4ce4466b0.jpg

http://farm5.static.flickr.com/4054/4248318476_3cf10a4c37.jpg

http://farm3.static.flickr.com/2712/4247545905_a898814c7c.jpg

Will post more pics of tank in position etc later..

Tyler

Tyler
01-05-2010, 9:39 AM
More pics of parts from this build, updated pics to follow

http://farm4.static.flickr.com/3322/3489456970_ff63f89d09.jpg

http://farm4.static.flickr.com/3408/3510271229_b2de924c25.jpg

http://farm3.static.flickr.com/2774/4132880851_be1616fe55.jpg

GreaserMike
01-05-2010, 10:07 AM
Lookin sharp.

Those welds look beautiful.

Who made the hardtail?

Tyler
01-05-2010, 10:18 AM
Haha thanks man, the front mount worked out much cleaner as far as the weld. I am still definitely practicing my TIG abilities, getting better all the time though.

The hardtail is made by David Bird.

Cheers
Tyler

Pete
01-05-2010, 10:45 AM
Looks good so far! The shop looks nice and toasty too! How's the lift working for you, and how do you clamp down the bike?

MikeD
01-05-2010, 11:17 AM
Lookin' good Tyler. And yes, you definitley got some TIG skills.

Tyler
01-05-2010, 11:47 AM
Pete I just throw a short rachet strap around the lower rails and the lift. I had planned on cutting out some bike-specific hardwood mounts that I would clamp it to with a J bolt, but then I figured ah screw it a strap is fine :)

MikeD, thanks man but not yet, that last weld was nice I am getting better but I am definitely not happy with them yet, that rear mount could have been much cleaner. Still playing with tungsten, grind angles on the tungsten, speed, etc..

Tyler

KT
01-05-2010, 2:14 PM
looking like your off and running man ...dont sweat the small stuff like grinding angle blah blah blah I tig mig arc oxy weld hell I have even done sonic welding in a plastic factory ...it's like the woman say it's all in how ya wiggle the worm LOL keep it up ..your off to a good start in ability plus it looks like your using good clean metal prep and proper fittment of parts is a big deal when welding a shitty fab job makes it even harder to get good welds...

PS you put ski's on your bike yet? we need them this week lol maybe a snow mobile chop ???? hmmm wheels turning lol

Tyler
01-07-2010, 5:34 PM
http://farm3.static.flickr.com/2697/4254609853_726be1379a.jpg

http://farm5.static.flickr.com/4064/4254609971_61a1a3f64a.jpg

http://farm3.static.flickr.com/2685/4254610059_e14f50846a.jpg

motoguru
01-07-2010, 7:50 PM
that throttle tube is the hottness.

Gepetto
01-07-2010, 10:10 PM
Starting to come together, how good does the bird tail fit the preunit?

Jashole
01-08-2010, 12:07 AM
she's gunna be beautiful

Tyler
01-08-2010, 11:08 AM
Starting to come together, how good does the bird tail fit the preunit?

Spot on. Bolts right up and the motor and trans drops right in place, mounts were perfect.

Abeblinkin
01-09-2010, 12:48 PM
Tyler, I'm starting a T110 project as well. Just got my hardtail from Bird. Do you use british hardware to mount the hardtail or will something standard work just as well. Your bike is lookin great man

Tyler
01-10-2010, 7:29 PM
Tyler, I'm starting a T110 project as well. Just got my hardtail from Bird. Do you use british hardware to mount the hardtail or will something standard work just as well. Your bike is lookin great man

I am using some grade 8 bolts, 3/8" if I am not mistaken. That is for the main top mount, the lower front I am using stock hardware.. I have some bullshit hardware in there for now I need to sort out the good stuff but will wait until I tear it down for paint

Tyler
01-10-2010, 7:36 PM
Got a chance to work on my bike a bit here and there over the weekend and got some fork stops made up. The front end is a '61 but it is going on the '58 frame so the stops on frame and tree don't mate up.

http://farm5.static.flickr.com/4014/4263917179_e64725f714.jpg

Welded a tab to the neck to act as a stop

http://farm3.static.flickr.com/2749/4264668146_988585bd4e.jpg

Drilled lower tree for 5/16" round stock

http://farm3.static.flickr.com/2698/4264668328_642b7c9129.jpg

Bottom of bottom tree, pre-welding... notice the stock stop tabs on the tree, to be cut off shortly..

Tyler
01-10-2010, 7:39 PM
http://farm3.static.flickr.com/2706/4263917471_f998ac293b.jpg

Welded up..

http://farm5.static.flickr.com/4030/4264668506_225b05ffa6.jpg

Cut off stock stops and cleaned up lower tree a bit

http://farm3.static.flickr.com/2716/4263917753_8af4eded68.jpg

Finished fork stops.. Nice and simple, once headlight is mounted you won't even seem them.

Tyler

Tyler
01-18-2010, 7:10 AM
Polished pegs

http://farm3.static.flickr.com/2794/4284206797_852b04b2fb.jpg

This mess..

http://farm5.static.flickr.com/4046/4284951242_fdb29e62f2.jpg

Made my coffee look like the Milky Way Galaxy

http://farm3.static.flickr.com/2785/4284207031_277acc6c7e.jpg

But had nice side effects, such as this cut cover, not finished but more or less there

http://farm5.static.flickr.com/4062/4284207133_55a49ed135.jpg

more to come..

Speedfiend
01-18-2010, 8:05 AM
Looking good! I really dig it. Great lines, clean. Understated but not lacking. Are you going to do something w/ the genny hole? Or drill more holes?
What year is the oil tank?

framus
01-18-2010, 8:13 AM
Lookin great as usual, Tyler. Have an idea about paint yet?

Tyler
01-18-2010, 8:16 AM
Looking good! I really dig it. Great lines, clean. Understated but not lacking. Are you going to do something w/ the genny hole? Or drill more holes?
What year is the oil tank?

Thanks man... more holes :)

Tyler
01-18-2010, 8:17 AM
Lookin great as usual, Tyler. Have an idea about paint yet?

Not sure.. probably black tank and fender, not sure on the frame yet.. maybe something different. I was originally going to do this bike with flashy paint, but I am just not that flashy of a guy so I will stick with simple paint and let the bike do the talking

Tyler

framus
01-18-2010, 8:36 AM
Metallic green frame. Do eeet! ;)

fouraceswes
01-22-2010, 12:41 AM
You still thinking about doing some engine go fast stuff?

Jashole
01-22-2010, 12:55 AM
shes lookin good

Tyler
01-22-2010, 11:32 AM
You still thinking about doing some engine go fast stuff?

Yes. My only worry is the spool front, but wtf.

KT
01-22-2010, 11:59 AM
Get ya some flat track steel boot soles and lean that bitch you don't need brakes =) ....And whatever ya hit will stop you =P ...Atleast it does when I have wrecked

Tyler
01-22-2010, 1:12 PM
Here I show the process I used to make a custom head stay for my Triumph. This is a '61 pre unit Triumph with a later unit top end, in an earlier '58 frame, so nothing stock works. I decided to make up a neat bracket using a couple of bungs and some steel plate. The first step was to screw the bungs in place for mock up. I mocked it up using 5/16" hardware, but switched to 3/8" hardware and bungs for the actual bracket. I used a 3/8" counterbore bung on one side and a 3/8"-16 x 1/2" threaded bung on the other, which sandwiched a stock cast tab on the frame. I then drew up a rough cardboard template and cut it to size to check fitment.

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-1.jpg

I was having too much fun and not taking enough photos, so next shot shows the bracket tacked in place, which I did in place on the bike. I went ahead and drilled out some round stock and cut it into thick washers for the mounts on the rocker boxes. I then used a grinder to rough-cut the shape of the bracket in question, radiusing the metal for the washers with a cut off wheel and shaping them smooth with a flap disc. I also cut the slot in the body of it so the bracket could squeeze together when tightened. Once tacked, I removed it from the bike and and welded it up.

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-2.jpg

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-3.jpg

Then comes the really fun part. I ground down some of the welds with a 120 grit flap disc on an electric grinder, as well as a couple of files and some emery paper. I picked up this circle stencil at a craft store for $5, and it works great for laying out some lightening holes. I figure these lightening holes help produce another 6 hp due to reduced weight. Ok, maybe only 5 hp.

Tyler
01-22-2010, 1:13 PM
http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-4.jpg

The use of a stencil like that, and most importantly, taking your time and center-punching before drilling, makes the end result much nicer. It really blows when you spend a couple hours on a custom bracket and then drill the holes crooked.

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-5.jpg

A drill press helps for straight holes, especially in thicker steel. A nice low speed and some cutting fluid helps as well, and makes your bits last longer. Step bits (also known as unibits) are awesome, and make for less bit changes, and also allow you to chamfer the edges of your holes super easy.

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-6.jpg

Tyler
01-22-2010, 1:14 PM
http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-7.jpg

The final bracket bolted in place. Nice and clean, and very stout, this should do it's job well. Some final sanding and either paint or plating and it will be totally finished.

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-8.jpg

http://lowbrowcustoms.com/tech/make-a-custom-bracket/make-a-custom-bracket-photo-9.jpg

KT
01-22-2010, 2:14 PM
That looks stellar man ...I take it you are making a front one in the same manner?

Hey how did your unit topend on that 61 go???? Reason I ask is I have the 61 with a 58 thunderbird frame plus a mid 60's tr6 unit top end ready to go ...freaking wierd we are building the same package ..I was gonna use the 57 6t engine ,but decided to use the 61 bottom end instead .. I have'nt got into mine yet so any tips on that conversion???? maybe a "hey I found this when doing it"?

Tyler
01-22-2010, 3:05 PM
I am actually just going to run the one top mount, it is beefy and I think is sufficient. Plus I don't want to make a matching one of those stays :)

I actually got this motor in an old chop with the 9 bolt top end already on it. I did pull it and check it out, it is just a direct bolt up, just have to use the match 9 bolt cylinders and head

Tyler

KT
01-22-2010, 4:03 PM
I have a 9 bolt setup my concern was the pre unit cams matching the pushrod tappets in the bottom end .... Trumpnut was saying and I also looked and confirmed it that a pre unit with a pie mark on the cases means it came with or has ramped cams this 61 does not have the pie stamp ...so dunno if that means I am ok or not guess I need to start reading and researching...

I will have it all apart so checking it would be the best thing to do ....I figure

BTW what was your reasons for not using this 6" bird hardtail I got.... I thought you said it was just to much stretch for what you was going for but could'nt remember....I'm debating using it on this build I have a nice Triumph factory pre unit tail section at my disposal who knows what I will do LOL

Anyways keep the pics coming curious to see this one when it is done .....Thanks for the reply

Tyler
01-22-2010, 8:59 PM
Every bike I have built has been 6 inch over, and my BSA is even 8 over stock wheelbase. I decided to do something different, and also the oil tank I am running is more of a side mount one and there was too much empty space with the 6 over on there. The one on there now is just a 2 inch stretch

Tyler

KT
01-22-2010, 9:09 PM
cool beans man thanks for the info ...

Tyler
01-23-2010, 9:05 AM
The oil tank I am using had a couple hair line cracks at the bottom mounting tab. Wire wheeled and sanded the paint off it, after cleaning out the inside. This is a late 40's oil tank that had tons of gunk in it. Soaked in kerosene for a few days, flushed that out a couple times, a handful of drywall screws (thanks George!) and some comet cleaner and hot water finished it off so it was spic and span inside. Here it is pre-welding, you can see the hairline cracks

http://farm5.static.flickr.com/4047/4297141797_a26a537592.jpg

and post-welding..

http://farm3.static.flickr.com/2755/4297886174_8923064d56.jpg

Went pretty smooth, I welded the cracks and along both sides of the tab, where the weld was also cracked. There was about a 1/16" gap between the tab and tank body on the back side, I also welded that in.

http://farm3.static.flickr.com/2751/4297886214_e059416802.jpg

Not the prettiest welds ever, but I think there was a bit of oil stuck under the tab still, it smoked while I was welding it there. I am going to leave as is, you won't see the repair as it is on the bottom side of the tank, and I figure it just gives a little more character to a really old tank.

Tyler

TroopThrowback
01-23-2010, 10:28 AM
I have a 9 bolt setup my concern was the pre unit cams matching the pushrod tappets in the bottom end .... Trumpnut was saying and I also looked and confirmed it that a pre unit with a pie mark on the cases means it came with or has ramped cams this 61 does not have the pie stamp ...so dunno if that means I am ok or not guess I need to start reading and researching...


Okay, educate me. I've never heard of this, but I'm collecting parts for my next build. I've got a 61 duplex frame, loop hardtail, a set of alternator cases and I want a 9 bolt top end on it. What's the deal with the pie mark? You got a photo? I want some references on it, please.

KT
01-23-2010, 2:41 PM
I'll PM as to not jack tylers thread

TRUMPNUT
01-23-2010, 7:24 PM
Not sure.. probably black tank and fender, not sure on the frame yet.. maybe something different. I was originally going to do this bike with flashy paint, but I am just not that flashy of a guy so I will stick with simple paint and let the bike do the talking

TylerA nice black paint job is the most flashy ! Aslo the hardest for a painter to make look tits !

TRUMPNUT
01-23-2010, 7:40 PM
I have a 9 bolt setup my concern was the pre unit cams matching the pushrod tappets in the bottom end .... Trumpnut was saying and I also looked and confirmed it that a pre unit with a pie mark on the cases means it came with or has ramped cams this 61 does not have the pie stamp ...so dunno if that means I am ok or not guess I need to start reading and researching...

I will have it all apart so checking it would be the best thing to do ....I figure

BTW what was your reasons for not using this 6" bird hardtail I got.... I thought you said it was just to much stretch for what you was going for but could'nt remember....I'm debating using it on this build I have a nice Triumph factory pre unit tail section at my disposal who knows what I will do LOL

Anyways keep the pics coming curious to see this one when it is done .....Thanks for the replyTriumph put that mark in the early 50's for ramp cams so poeople knew to adjust the valve clearance different . The push rods and cam followers were the same . Triumph only had 2 different cam followers ..750 radius and a 1.125 radius which was marked "R" . When putting a 9 bolt on then you have to see what year cylinder you are running because you mught have to plug the oil feed hole to the ex cam follower.

Speedfiend
01-24-2010, 8:44 AM
Hey Trumpnut, I was just about to say that. I had to pull my cylinders to stop the mysterious stream of oil coming from under my base gasket. I tapped the hole for a 1/4-20 set screw and a libral dose of loctite.

Looking good Tyler. More holes=more better

Abeblinkin
01-29-2010, 1:53 AM
Hey Tyler, I was wondering what brand of unibits you use, I think that might be a good thing to have.
What do you plan to do with the swingarm mounts?

GreaserMike
01-29-2010, 9:21 AM
Dammit Tyler, your knowledge of scientific Triumph transmogrification is only outmatched by your zest for kung-fu treachery!

Pete
01-29-2010, 10:23 AM
Loving the build Tyler! I am having the same problem with my front fork. The BSA frame I have has a large knob sticking out of each side of the fork neck (like Frankenstein's neck). They are going to have to go cuz the turning radius is worse than my truck!

How much angle should there be? In other words, how did you determine where to locate your pins?

Pete

TanDawg100
02-10-2010, 11:04 AM
What Greaser Mike said! Great job man!

Tyler
02-10-2010, 5:11 PM
How much angle should there be? In other words, how did you determine where to locate your pins?

Pete

I squinted one eye and made a dot with a magic marker on each side. Actually I just put the pins as far towards the edges of the lower tree as I could, then just cut the center bracket that I welded onto the neck pretty narrow so it still had a nice range of motion. I figure it is about 22 or 23 degrees of rotation in either direction, about 45 total

Tyler

Pete
02-11-2010, 7:04 AM
Tyler, thanks for the info. 22-23 degrees seem about right to me.

Tyler
02-13-2010, 4:02 PM
Was out of town the last couple weekends, finally doing some work on the bike again. Fitted front wheel with new polished stainless spacers, thanks to Jay at '79 special for turning these for me

http://farm3.static.flickr.com/2725/4353998607_3cd22267b7.jpg

nardi1
02-13-2010, 7:29 PM
I have one of those Tomaselli 1/4 turns on my preunit. I'd suggest against it. Its pretty touchy.

Choppedtriumphs
02-15-2010, 5:16 AM
I Dig this build Tyler,...Keep on,.. Keepin' on..

Tyler
02-22-2010, 9:21 AM
http://farm3.static.flickr.com/2755/4378609813_bfb630e90c.jpg

These timing gears sure look funny.. guess I will run em anyhow

GreaserMike
02-22-2010, 9:33 AM
Yeah they look HILARIOUS!!!!

I have a nice unused set of stock gears that I'd gladly swap you if you're concerned with running those.

I know, I know....no need to thank me. I'm a giver. That's just how I roll.

fightclub
02-22-2010, 4:55 PM
hey Tyler, who did the machining on those timing gears ? thanks

Tyler
02-23-2010, 1:19 PM
http://farm3.static.flickr.com/2727/4382912386_370412d16b.jpg

just got this this morning after hours of driving around to snag it.. chronometric tach, it is beautiful

image1
02-23-2010, 1:24 PM
righteous! where ya gonna mount it?

KT
02-23-2010, 1:30 PM
Oh I bet that hurt to pay for ...Chrono's are not cheap ...great grab man

TRUMPNUT
02-23-2010, 5:37 PM
So are you going to move the breather to the timing cover ?

I do like the cut on the gear teeth but I'm not a fan of the holes in them . I have had bad experiances with that in the high rev deacceleration .

Did you static balance those ?

Tyler
02-27-2010, 9:57 AM
I plan on having a breather for the timing case but am leaving the stock crankcase breather.

How do you static balance something like timing gears? So the answer is no they aren't static balanced!

Tyler

TRUMPNUT
03-01-2010, 8:28 PM
I plan on having a breather for the timing case but am leaving the stock crankcase breather.

How do you static balance something like timing gears? So the answer is no they aren't static balanced!

Tyler
Hang them from a reverse plumb bob or you can machine a shaft with a slip fit and them pit them on centers or knife edges .

It is over kill to do it but if you are planning on riding in the revs. then everything helps . It also aids in the life of the crank bearing and mag bearing since the high speed vibes won't be passed through to the bearings . Stock gears don't really need it but once the hole are drilled they could be out of balance pretty bad .

gravelveins
03-01-2010, 8:58 PM
that tach is killer...

billybiltit
03-02-2010, 10:11 AM
this is a kick ass build thread!
keep postin,i want to see where you end up.

leon

Tyler
03-02-2010, 11:44 AM
http://farm3.static.flickr.com/2795/4401901718_90a99cb410.jpg

A little time doing some lay out this morning and a bit of time on the drill press.. Sometimes the simple stuff can be so fun.

KT
03-02-2010, 5:36 PM
you gonna name this bike "The Holey Roller" LOL just saying looks like ya busy with that drill press as of late...