Excessive wear on oil pump gear ends, what to do?

[dennis 356]

Discovered a pretty excessive wear on oil pump gear ends where they slot in the cam gear grooves on three of my engines, is this normal wear or is there any other reason for that?
Except of changing them out for new ones, can new material be welded on and grinded to original shape again, will that be durable?
What would be the prefered welding option in order to ensure durability, MIG, classic gas weld or others?
Dennis

[dennis 356]

Nada ??? No one knows ???

[szorti]

With oil pump gear wear in our engine, my mechanics checked camshaft and found excessive wear on it as well: https://photos.app.goo.gl/kmuq9akPHIZMdUXs1

We just bought new oil gears and gave the camshaft to people who know how to weld and grind things like camshafts and heads.

There is quite big free play between oil gear seat in camshaft and oil gear (like from stock) and I think this may be the reason of excessive wear of those.
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1974 Bug - RIP
1967 Bug
1980 BMW R45

[volksworld]

if you're gonna try this yourself best bet is to tig it...walt from competition engineering 760 379 3879 in california fixes these....got this info from another site, so i have never used them for anything so this is not a recomendation and i have no idea of the price...here on the vw side new pumps are so cheap this is a non issue...

[dennis 356]

Thanks for replying guys, but new oil pump gears are so expensive I rather want to avoid that expence, and especially if there exists some kind of remedy for this. The wear is serious, sure, but again so small on both sides it has to be possible to fix instead of spending maybe $300-$400 plus overseas shipping for a new gear, that in my opinion is madness.

And I also have three of them (three engines) !!!

Dennis

[alanhall]

I think there is an item called an Oldham coupling which can be used here, one of the parts places in the U.K. sells them as I recall. https://prs356.co.uk/porsche-parts/all/1/oldham-coupling

[dennis 356]

[dennis 356]

Did no one really ever attempt welding on the oil pump gear end?

Dennis

[dennis 356]

[dennis 356]

I´m of course mostly interested of whether this "bush repair" by welding on extra material on the oil pump gear and than grinding it down, has the potential to hold over a foreseable time period or if its totally nuts and meaningless?

Appreciate of course all the other suggestions and options, but ay, so costly.....

Dennis

[dennis 356]

[roy mawbey]

might be useful price wise?

https://prs356.co.uk/porsche-parts/engine/39/oldham-coupling

Roy
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Roy
RHD356A super75 106954

[Danwvw]

I would leave it alone until a full rebuild with a new cam and new tang gear drive etc..

Stop running that 20W50!
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[dennis 356]

[quote="Danwvw"]I would leave it alone until a full rebuild with a new cam and new tang gear drive etc..

Stop running that 20W50![/quote

This is a full rebuilt and the cams are still good, except these tiny irritating hickups on them....
I never run these engines, someone else did a long, long time ago before I bought them a couple of years ago.....