Thread: Does this look right

Originally Posted by Kevin B

Excuse my Noob questions here but what are ARP bolts and why cant you reuse the bolts?

I should have said ARP studs not bolts - basically studs are better than bolts as there is no turning motion on the thread in the block etc. You should not reuse bolts as they are stretch bolts and they would have already been stretched. I don't know about conrod bolts but as all the main load through the conrod is down so not a lot of load on the bolts - note they are quite small compared to the main bearing bolts. The main load on the conrod bolts is on the up stroke where are either compressing the fuel mixture or exhaust gas out. I reused mine as they the engine was low km.

Originally Posted by MattyGM

Ah big end bearing cap.

Thats them .

Ok thanks guys, I will renew them but I didn't know that and would have reused the old ones, see it pays to ask, I do however suspect this engine has had a rebuild but im unsure how long ago and as Dave said for a few buck, better safe than sorry

Originally Posted by Kevin B

Ok thanks guys, I will renew them but I didn't know that and would have reused the old ones, see it pays to ask, I do however suspect this engine has had a rebuild but im unsure how long ago and as Dave said for a few buck, better safe than sorry

Engines hopefully don't need to come apart very often (hopefully!) so best chuck anything suspect and replace all fasteners, re tap threads and clean everything as much as possible.

Yes as soon as its all stripped block is off to mate to be tested, cleaned and honed, but before that im dreading trying to get the crank pully bolt off when I get the correct socket.

Originally Posted by Kevin B

Ok thanks guys, I will renew them but I didn't know that and would have reused the old ones, see it pays to ask, I do however suspect this engine has had a rebuild but im unsure how long ago and as Dave said for a few buck, better safe than sorry

3.5 doesn`t use yield bolts so they don`t have to be replaced

Originally Posted by PLR

3.5 doesn`t use yield bolts so they don`t have to be replaced

So are you saying i can reuse the 10 Main bearing bolts i will remove from it as they are not "Yield Bolts" ??

Originally Posted by Kevin B

So are you saying i can reuse the 10 Main bearing bolts i will remove from it as they are not "Yield Bolts" ??

All 3.5 bolts are reusable if any good .

Though nothing wrong with stress exchange idea .

Mains aren`t yield on any to my knowledge , bigends are on other than 3.5

Don`t think yield is right degree may be better ?

To answer the first post in this thread That crankcase appearance is fine and not dirty etc etc. It's just as you would expect.

The main thing you chould worry about and check is whether the main caps were tight to remove, as if they are loose then the block is toast.

The con rods big ends can be line bored , as can the block.
AFAIK you can reuse the bolts.

The crank is a bit marked but can be ground undersize if the marks will not polish out. The main thing to consider with the crank is whether the thrust washers are worn, as the oversize needed on these determines the oversize needed for the bearings . Or at least it did when I last did a bottom end in 1985! It doesn't look like you checked the end play before dismantling, as manuals often need oversize thrusts but autos are usually OK for obvious reasons to do with pushing in the clutch.
Regards Philip A