Removing head bolts to fit bracket

[Rangie Thing]

Hi all i am changing engines at the movent and the alt, ac, ect on the old engine bracket is bolted with two head bolts, would it be worth unbolting the two head bolts and then touque them back down or would it be better to make a new one.



Thanks Rick

[mikesmith]

are the bolts on the head torque to yield?? if they are prob not the best idea.

[beinthemud]

What engine, what age

[PJ.zook]

I wouldnt be touching them head bolts at all for the sake of a bracket.

[Rangie Thing]

The engine is a nissan sd33-t 1984. I think i will make a new bracket and mod the old one as it also bolts to the front of the water pump making it a big job to change the that too.

[mavzilla]

I would pull them out and then just retorque to specs. have done plenty of times on old stuff, never had any problems

[mhgill]

If ist just 2 bolts in a SD33, I'd remove them and re tourqe to spec + a smidge more to be safe

[LuxyBoy]

Head bolts are meant to be done in a specific sequence; if you are going to remove two you should remove ALL and then re-torque the whole head in sequence to factory spec.

[RAY185]

Head bolts are meant to be done in a specific sequence; if you are going to remove two you should remove ALL and then re-torque the whole head in sequence to factory spec.

For initial torque down this is true. I don't think it's going to worry it to remove 2 bolts and retorque to spec. The 2F cruiser motor is similar in that the air cleaner bracket is retained by 2 head bolts. I have removed and refitted as above with no dramas. Either way, if you solve your problem without removing them easily enough then don't.

[Rangie Thing]

Been looking at the bracket tonight and think i will be able to make it fit without removing the headbolts, and it should make much easier to remove the head or water pump without pulling half the engine apart too.

[PGS 4WD]

If ist just 2 bolts in a SD33, I'd remove them and re tourqe to spec + a smidge more to be safe

Never over tighten a head bolt, a torque to yeild bolt will loose massive amounts of clamping force if tightend beyond specification. Clean threads and an appopriate lube are all that is required.

Joel