Engine experts chime in please

[Harpo]

Originally Posted by Lyndon302

I will strip it down Monday.
It has timing chains that are linked. Also the pistons/ rings are not ideal. ( Was done at the peak of covid and I had to compromise )
This is a good excuse to part the case plus I have some goodies in the house.
Lyndon

Where did you get your straight cut gears? Brand?

Thanks

David

[Lyndon302]

David
Jon at EBS
Pauter same as the the rods.
Lyndon

[Lyndon302]

Update
I'm sure now it's rod bearing that's in the filter.
They are worn. So I'm glad it's apart.
I will get the crank measured. Then I'm using ACL rod bearings. I can get STD. 001 over and 001 under in race spec. Locally made.
The right price as well. Speaking to the guys in Tassie they have made bearings ( one off which they don't supply ) for a mob in the USA.
So some Porsche parts in the USA are rebranded ACL.

[Lyndon302]

[mikedsilva]

ACL make great bearings.

BTW, your workspace is fantastic. Wish I had it.

Mike

[Harpo]

Originally Posted by Lyndon302

David
Jon at EBS
Pauter same as the the rods.
Lyndon

Thanks, just ordered mine

[blue911rsr]

In a street car you might want to reconsider straight cut ims gears are quite
noisy

[Prsh356]

I saw the edge of that gear looks like it was rubbing on something could that be where the aluminum flakes came from ?

[Lyndon302]

Originally Posted by blue911rsr

In a street car you might want to reconsider straight cut ims gears are quite
noisy

Can't be noiser than the transaxle

[Lyndon302]

The gear is good. One tooth has been squeezed by something against the steel gear. Old issue. Definitely it's flakes from the big ends.

[ahh911]

Originally Posted by Lyndon302

The gear is good. One tooth has been squeezed by something against the steel gear. Old issue. Definitely it's flakes from the big ends.

Lyndon, are you still thinking it's flakes from the big ends? If the flakes are tough and metallic, do you unfortunately have the chips missing from the crank and bearing structure? The pictures you've shown seem to to show the rod bearings with some soft layers still intact, I think the worse area's show copper.

Phil