hey guys, "Ford" logo on the rod caps and the bolt on the piston arm both face the camshaft when they go back in right?
Matthew -- The Ford logo isn't important. Yes, the wrist pin bolt goes toward the cam. There should be marks on the rod and cap which also go toward the cam. Whoever had the engine apart before you probably marked them either with a center punch or a file. They should be marked with 1,2,3,&4 marks. The 1 mark is the front rod/cap, and the 4 is the rear one.
thanks, also, the front of the engine (neear timing gear/crank area is piston #1 for the first cylinder right?
Right.
thank you very much. Well, here's hoping I get #1 in before bed (kind of a night owl here)
As I remember, the split in the piston goes on the opposite side to the camshaft
Is there a reason that the wrist pin bolt goes toward the cam.? Or is it that we do it all the same ?
Toon
On a standard model T engine the answer is either way.
When I took apart the Coupe's engine the bolts were away from the cam. I put the rods back in the same way. I see no reason why it would make a difference. The piston split goes away from the camshaft.
Stephen
Having the split in the pistons pointing to the non loaded side = to the LH side of the car is likely more important then having the wrist pin bolt towards the cam (if someone suspects anything went towards the wrong side and worries whether it's needed to pull everything apart again)
I think that's right about putting the wrist pin bolt toward the cam being a tradition. That's just the way they're nearly always done, so that's how we continue to do it. I never have heard any valid reason for doing so. The split in the piston is another matter and needs to go as mentioned above.
The main thing is, if you're not pouring new babbitt, put them back in the way they were before. If they're not marked as outlined above, I'd mark them now. (The marks go on the cam side; I guess that's tradition as well.)
On page 42 of the Service Bulletin Essentials book, it says "These marks are always on the wrist-pin clamp-screw side of the rod and are assembled to the camshaft side of the crankshaft."
Your mileage may vary.
thanks for the responses guys. I have another one: what do you guys mean by the "split" in the piston?
If you have aluminum pistons they have a slit, Iron does not.
If you are using the original cast iron pistons, they can go in either way but later aluminium pistons have expansion splits.
I'm re-using the original cast iron pistons, so it sounds like it shouldn't be a problem then. I got pistons #'s 4,3,and 2 in, but I can't get the top ring to of #1 to compress enough to go in.
Matthew.......did you "dry fit" the rings in the cylinders before you put them on the pistons?
A long time ago (but not nearly long enough ago) I learned to not trust ANYTHING.
Is the ring groove absolutely clean?