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> Thick oil pump gasket, Pump doesn’t line up
Chad911sc
post Jan 17 2026, 10:26 AM
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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.


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Superhawk996
post Jan 20 2026, 12:40 PM
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SMH.

This commentary isn’t directed at the OP but is a general rant.

There is so much nonsense going on to avoid using the proper T4 pump in 914’s that it is sort of ridiculous. Especially given 914’s or engine rebuilds are no longer cheap.

As noted, the T1 pump needs modification of the case and the cam drive to use on a T4. See pic.

I’m baffled other companies are advertising pumps for T4 use that don’t have the mods but I guess that is the current state of automotive aftermarket - about 80% of it is (IMG:style_emoticons/default/stromberg.gif) and I run into this for all cars not just 914 stuff. Get your pumps from someone like LN engineering that knows what is needed to modify the T1 pump properly. I might even go so far as to ask LN if they would Oring the pump but just like using a local machinist - it will cost $$.

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Now having said that T1 pumps need mods - I’m just beside myself that people won’t take the time to modify a good T4 pump by pinning the idler shaft. Keep in mind that unless the oil pump ingested schrapnel from a catastrophic failure, oil pumps rarely are worn out. The practice of simply scrapping T4 pump cores to put a cheap aftermarket T1 pump in is short sighted in my opinion.

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The T4 pump was a superior pump design that was evolved by VW to address the shortcomings of the T1 pump.

Unfortunately T4 pumps are more expensive to produce due to the form factor and the need to hold very tight tolerance of the pump body OD where it fits in the case. At this point in time so many have tossed good OEM T4 pumps and/or pumps that could have easily been pinned that T4 pumps are now in short supply and a bit pricy when you can find a CNC type 4 pump (like $300) last time they were available. But at $300 (or more) to produce a good quality T4 pump I know that the majority of the 914 and VW crowd will refuse to pony up for a T4 pump and will continue to chase the $30-$60 T1 pumps. There is no motivation for anyone to tool up a mass produced T4 pump and it has become a self fulfilling death spiral for T4 pump availability.

Moral of the story: if you have a decent T4 pump that hasn’t pumped garbage, pin the idler shaft and keep the higher quality pump.
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friethmiller
post Jan 20 2026, 01:11 PM
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QUOTE(Superhawk996 @ Jan 20 2026, 12:40 PM) *

Moral of the story: if you have a decent T4 pump that hasn’t pumped garbage, pin the idler shaft and keep the higher quality pump.

Awesome! Can you post the link to your "pinning thread", again?
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Posts in this topic
Chad911sc   Thick oil pump gasket   Jan 17 2026, 10:26 AM
fixer34   I don't think you should need a 3mm thick gask...   Jan 17 2026, 02:30 PM
Geezer914   Check the clearance to the cam gear with the cam i...   Jan 17 2026, 02:40 PM
Montreal914   That groove tawards the inside doesn't look li...   Jan 17 2026, 03:03 PM
Ninja   I'd check the line up of the oil pump ports to...   Jan 17 2026, 04:59 PM
Chad911sc   So the pump body is definitely too long. It’s ju...   Jan 17 2026, 05:26 PM
porschetub   So the pump body is definitely too long. It’s j...   Jan 18 2026, 02:54 PM
Chad911sc   Yes, I think I will be ok using the non o-ringed p...   Jan 19 2026, 09:40 AM
Jack Standz   Gene Berg still makes o-ringed type 1 oil pumps (h...   Jan 19 2026, 10:39 AM
Chad911sc   I looked on the Gene Berg site earlier today becau...   Jan 19 2026, 11:46 AM
stownsen914   I've understood that type 1 pumps require mach...   Jan 20 2026, 08:17 AM
Chad911sc   So I called Gene Berg today and talked to their te...   Jan 20 2026, 12:06 PM
Superhawk996   SMH. This commentary isn’t directed at the OP ...   Jan 20 2026, 12:40 PM
friethmiller   Moral of the story: if you have a decent T4 pump...   Jan 20 2026, 01:11 PM
Superhawk996   [quote name='Superhawk996' post='3241638' date='J...   Jan 20 2026, 01:20 PM
Jack Standz   Generally, modifying a type 1 oil pump (please not...   Jan 20 2026, 01:27 PM
Jack Standz   Or use a good type iv oil pump and pin the shaft l...   Jan 20 2026, 01:32 PM
Jack Standz   [quote name='Superhawk996' post='3241638' date='...   Jan 20 2026, 01:34 PM
Geezer914   Oil pressure on a T4 pump compared to a 26mm T1 pu...   Jan 20 2026, 03:58 PM


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