Starion871 Posted November 30, 2012 Report Share Posted November 30, 2012 Well pretty much a to b question but I need to know if turning the rod journals 20 under would be safe for a Turbo starion, And why? Tried searching couldn't find anything on this subject any help appreciated Thanks! Link to comment Share on other sites More sharing options...
NotStock88 Posted November 30, 2012 Report Share Posted November 30, 2012 you need to hit up "dad" on the site. His website is www.enginemachineservice.com - also the OEM manuals are found here; www.starquestgarage.com - that should be a good start for you. Link to comment Share on other sites More sharing options...
Skullzaflare Posted November 30, 2012 Report Share Posted November 30, 2012 you mean 20 over? are they that bad? the factory nitrate coating goes atleast 30 over deep. however, its still best to have DAD chime in since he is a machinist lol Link to comment Share on other sites More sharing options...
Dad Posted November 30, 2012 Report Share Posted November 30, 2012 You should be safe at 020, but without seeing the crank or magnafluxing I can't tell for sure.. if it has been badly overheated / bent/ then you might be best to replace it.. if it's more of a wear factor with very little heat damage then you should go for it... best to have the shop inspect it. Dad Link to comment Share on other sites More sharing options...
Starion871 Posted November 30, 2012 Author Report Share Posted November 30, 2012 Ya I bought a crank from a member on here and found out it was 20 over. Machine shop said it may be to weak for a Turbo engine but I heard it may be fine at that spec. I just had to ask before it gets resembled. Appreciate the prompt posting now I can move ahead a little more confident! Link to comment Share on other sites More sharing options...
Skullzaflare Posted December 1, 2012 Report Share Posted December 1, 2012 You should be safe at 020, but without seeing the crank or magnafluxing I can't tell for sure.. if it has been badly overheated / bent/ then you might be best to replace it.. if it's more of a wear factor with very little heat damage then you should go for it... best to have the shop inspect it. Daddepends on the shop, i have a local shop telling me you "cant" turn a import crank, you have to replace it.granted, i like the shop and their dyno, but wt.... really? bs lolmaybe i will mail you my g54 crank with spun bearing, and 2jz crank with spun bearing lol Link to comment Share on other sites More sharing options...
Dad Posted December 1, 2012 Report Share Posted December 1, 2012 depends on the shop, i have a local shop telling me you "cant" turn a import crank, you have to replace it.granted, i like the shop and their dyno, but wt.... really? bs lolmaybe i will mail you my g54 crank with spun bearing, and 2jz crank with spun bearing lol LOL, I would like to know what they base that reasoning on. Now as I said before if it's burned badly or bent bad then replace it, Dad Link to comment Share on other sites More sharing options...
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