Rod bolts: reuse or replace

[jvginpdx]

I bought a jdm 7-mge engine. I loostened the rod bolts so that I could check the tolerances with Plastigage. Most threads on this web site and the on-line service manuals do not mention that the nuts and bolts need to be replaced. I did read some where that the rod bolts are stretch-to-yield and have to be replaced.

This engine is going into a Cressida with an automatic transmission. It will have normal useage, no racing or drifting.

Should I replace the rod bolts with new ones, or just reuse what I have. The oil pan is re-installed at this point.

 

[Zumtizzle]

They are not torque to yield. They can be reused; but i wouldn't.

 

[Poodles]

Correct, there aren't any torque to yield fasteners on our cars. ARP rob bolts are pretty cheap and you need to have the rods checked and resixed anyway usually...

 

[jvginpdx]

This is for my sons car. The previous engine died due to BHG and block corrosion issues. Since I already have the oil pan back on, I will just call it good. If he were a speed-demon or drove the mgte engine I would replace the bolts. I have reused the nuts and bolts in other engines, and I never had issues with the rod bolts. If they were indeed torque to yield, I certainly would change them, pronto.

Thanks guys!

 

[figgie]

rod bolts need to be checked for stretch regardless. If they are within spec, then by all means re-use them.