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-   -   Rod resizing, who to send to? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/968808-rod-resizing-who-send.html)

Trackrash 09-11-2017 08:24 AM

Quote:

Originally Posted by bpu699 (Post 9733447)
Just spent hours perusing the pelican rebuild specs...

Looks like clearance for the crank bearings is .0005 to .0035...

Clearance for rods, BE, is about .001 to .003

That's a helluva range... Is see folks on here mention that their crank clearance is .004 and folks suggest that's too loose, and appropriate for a dragster... But .0035 is ok?!
.

To me Porsche's work shop manual is unclear. It does state that the big end bearing clearance should be from 0.0011" to 0.0034". My impression is that 0.034" would be the wear limit. Again, Porsche, in the original workshop manual isn't clear on this IMO.

The main bearing clearance listed is 0.0003" to 0.0028"
http://forums.pelicanparts.com/uploa...1505147503.jpg

brawns 09-11-2017 03:36 PM

Yeah, for me it would always be the local shop for the reasons of accessibility — especially in terms of checking it personally, which you wouldn't have the luxury of when you decide to have it done by a foreign source that you just sent your sizing to. If you decide to have one customized for you, try to check out this link: Metal Machining Service - CNC Machining, Stamping, Surface Polishing
I think they can make a custom one according to your preferred or required sizing as their website says, if I'm not mistaken.


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