Panhead oil pump port identification

[SledKicker]

I had no problem routing the oil lines to the tank etc, but the previous owner had this little port on the oil pump of my 61 pan and there was a vacuum cap covering it up when I got the engine. Is this something like a chain oiler? I don’t know whether to leave it plugged, vent it, route it somewhere, or delete it or what.

[JBinNC]

That's where the oil pressure switch goes. Looks like he had plumbed it to provide top end oil, like for a shovel top end.

Jim

[Dragstews]

I find it hard to conceive that a Vacuum cap would stay put with as much oil pressure it would see on a cold start up... !!
.... Much less at running temp ....

[SledKicker]

I find it hard to conceive that a Vacuum cap would stay put with as much oil pressure it would see on a cold start up... !!
.... Much less at running temp ....

That’s why I didn’t even think it could be something like an oil switch, which sees full pressure. I guessed chain oiler or breather or something. Maybe they just stuck this on there to cap it off for storage. I’ll try to find a bolt or something to cap it off.

[JBinNC]

You may want to put a gauge in there and see if you have any oil pressure.

Jim

[Whoremonger]

That's where the oil pressure switch goes. Looks like he had plumbed it to provide top end oil, like for a shovel top end.

Jim

Listen to this man ,he knows of what he speaks. He is correct , that is where the oil pressure switch was.

[Tattooo]

I’ll try to find a bolt or something to cap it off.

LOL A bolt really???? What you need is called an oil pressure gauge if you don't have one......

If you have a gauge buy an oil line plug they make them for that application.........

A bolt will leak and look stupid..............

[SledKicker]

LOL A bolt really???? What you need is called an oil pressure gauge if you don't have one......

If you have a gauge buy an oil line plug they make them for that application.........

A bolt will leak and look stupid..............

Actually that’s exactly what I ended up doing this morning. I took the hose barb out of the elbow fitting and screwed in an oil gauge.

[Tattooo]

Actually that’s exactly what I ended up doing this morning. I took the hose barb out of the elbow fitting and screwed in an oil gauge.

Awesome..............

[SledKicker]

without starting a whole new thread, does anyone know if a 48-57 panhead case breather will fit in the later pan motor? I've got the style with a rubber nipple that oils the primary chain. The early style has a 90 degree bend and a metal pipe that I can more easily re-route with a hose away from my open belt.

[Tattooo]

without starting a whole new thread, does anyone know if a 48-57 panhead case breather will fit in the later pan motor?

Pics will be a lot of help..... Are you talking about the 60s style breather??????? The 90 is what you should have............

[Dragstews]

Does anyone know if a 48-57 Panhead case breather will fit in the later pan motor? I've got the style with a rubber nipple that oils the primary chain. The early style has a 90 degree bend and a metal pipe that I can more easily re-route with a hose away from my open belt.

58 to 64 ^^^



48 to 57 ^^^

Plug & Play ....

But, if you was up for a bit of work ....

[Tattooo]

58 to 64 ^^^



48 to 57 ^^^

Plug & Play ....

^^^^^^^^^^^^ Yep just as I said above...... But a I would still like to see a pic of what he is working with..............

[SledKicker]

Here is the bike as it sits now, and here is an earlier photo I happen to have showing the breather as pictured by Dragstews (with the rubber nipple cap removed). I ordered the early style breather last night. Cant do any better for photos at the moment since the bike is squatting in my buddy's garage at the moment.

[Tattooo]

^^^^^^^^^ Damn nice looking stance and a very clean bike..........^^^^^^^^^^

Well done.................