Can shaft and bearings

[Rustinmotion]

Can you change cam shaft and cam shaft bearings with the engine still in the car?

[142 Guy]

Camshaft - yes. The bearings - don't see how. Pressing the center and back bearings into place from the front of the engine would be difficult. Might be possible if you had some kind of rod to position the bearing with a outer sleeve to do the pressing part. I can see potential problems with pressing the bearing too far or not far enough. You would need separate tools for the center and back bearing because I recall they are different diameters. The camshaft bearings also have oil holes in them that need to line up with the supply holes in the block. Keeping them aligned while trying to press in place (and you can't really see what is happening) seems like an invitation to failure. I think this is one of those things where the engine has to be out just so you can align stuff and see what you are doing.

However, I eagerly await somebody who is going to prove me wrong and explain how they carried off this legerdemain.

[Ron Kwas]

RiM;

I would agree with 142Guy...I can't see either how the Cam Bearings could be replaced without full access as when the engine is on an engine stand.

Cheers

[morwenna240]

D’accord. Ts a fairly simple engine to remove, not like moderns, covered in spaghetti of all kinds. You will need a decent engine hoist.

[142 Guy]

Originally Posted by morwenna240

D’accord. Ts a fairly simple engine to remove, not like moderns, covered in spaghetti of all kinds. You will need a decent engine hoist.

Good point. If you are doing a camshaft replacement the head has to come off. If you remove the head prior to extraction of the block life is easier because the block is smaller. I don't know about the Amazon; but, on the 140 if the front clip is removed engine extraction with transmission attached is pretty easy. If the transmission and bell housing / clutch are left in the car the whole business of remating the block with the bell housing can get kind of challenging. Putting the block back in without the head at least allows you a better view of what you are trying to do.

On the topic of engine extraction agony, I also have a 2000 Acura / Honda NSX. I swear the car was vacuum formed around the engine. If you want to extract the engine intact you raise the car and drop the engine out the bottom. Creative individuals have managed it at home; but, I expect not with an 8' garage ceiling and I expect that they have a home two post hoist.

[csm22]

With the head off, all that's needed to remove for pulling the block is the center radiator support, which lowers the forward threshold over which you'll be pulling the hoist and block. There may be ways to avoid this step, but the extra clearance makes a big difference.

Cheers,
Chris

[Rustinmotion]

Originally Posted by csm22

With the head off, all that's needed to remove for pulling the block is the center radiator support, which lowers the forward threshold over which you'll be pulling the hoist and block. There may be ways to avoid this step, but the extra clearance makes a big difference.

Cheers,
Chris

Thanks everyone, seems clear it’s not a job to do with the block in the car