Thick oil pump gasket, Pump doesn’t line up Options

[Chad911sc]

So my plan was to start assembling the 2056 today, but I found this when placing the oil pump into the case. I measured the gap needed to fill with a gasket, and it’s right at 3mm. Do they make a thick pump to case gasket that will fill this space, so that the rubber sealing ring will be in the case instead of hanging out the back of it??
The gaskets that came with the pump are way to thin to place the pump in the correct position.

[fixer34]

I don't think you should need a 3mm thick gasket, the paper style is normal.
Either the pump is machined incorrectly or the mounting surface was milled way too much. Hoping it just a bad pump...

[Geezer914]

Check the clearance to the cam gear with the cam installed.

[Montreal914]

That groove tawards the inside doesn't look like an O-ring groove, if this is what you are thinking about. (IMG:style_emoticons/default/confused24.gif)

[Ninja]

I'd check the line up of the oil pump ports to case too.

Might add clarity as to proper depth.

I'd prefer the holes in the pump line up perfectly with the holes in the cases.

[Chad911sc]

So the pump body is definitely too long. It’s just shy of 2mm longer than the previous pump that came out of the running motor. I have sent pictures and explanation to the company I bought it from. The boss on the back of the pump where the gear engages the cam gear is also a hair longer as well. It bottoms out against the cam as you can see in the first pic.

[porschetub]

So the pump body is definitely too long. It’s just shy of 2mm longer than the previous pump that came out of the running motor. I have sent pictures and explanation to the company I bought it from. The boss on the back of the pump where the gear engages the cam gear is also a hair longer as well. It bottoms out against the cam as you can see in the first pic.

Now that looks better ,that new pump is clearly wrong as is the machined ? 'o'ring groove as mentioned it is a mess and not cut right on the wrong pump besides.
Believe your oil pressure issue was a bent crank so I would say you will be fine using the pump that fits properly if it is in good condition ,good luck as appears like you need some after your hassles ,cheers.

[Chad911sc]

Yes, I think I will be ok using the non o-ringed pump since the issue was the out of round crank. I was just trying to knock out every source of oil pressure issue while having it apart. I guess the oil pumps from Low budget VW are type 1 only and do not fit in the type 4 cases. Just a heads up for the next guy that as far as I can find, no one makes a o-ring pump for the type 4 engine.
I’m not sure what oil pump this was that was in the engine previously, so I will just order a 26mm CB maxi pump and put it in when it arrives.

[Jack Standz]

Gene Berg still makes o-ringed type 1 oil pumps (hard anodized too):

https://www.geneberg.com/product_info.php?c...products_id=384

Not home right now, so can't measure any Type IV cases to see if there are differences between any of them. Just a guess,, but maybe that low bugget pump used a dished cam oil pump body and not a flat cam one?

[Chad911sc]

I looked on the Gene Berg site earlier today because I thought I had remembered someone in the past saying they had them, couldn’t find it. But there it is! I think that is the route I would like to go, because I want to take all the precautions I can to keep the idle pressure up.
Not sure about the dished cam idea, but the pump doesn’t line up with the oil ports either. If you pull the pump back so that the o-ring is in the proper place inside the case, then the ports line up correctly also. But you then have that 3mm gap between the pump and the case itself. I don’t understand why it’s so off because it is a type 1 pump. The circumference is spot on. It’s a 30mm Schadek type 1 pump that was modified by low budget VW.
I don’t get it either??

[stownsen914]

I've understood that type 1 pumps require machining to fit into a type 4. Not sure about the length of the pump body, but I believe one of the areas that needs to be addressed is the alignment of the oil ports as you've noted.