rebuilding a 37 Terraplane six

Kdancy
Kdancy Senior Contributor
edited November -1 in HUDSON
I picked up the block, head and other parts from the machine shop that line bored the main bearings and helped him install the cam bearings that were made up from scratch. The brass or bronze bearings were pressed into place giving a very tight fit, then we had to ream the bearings to give the .001 fitment the book calls for. I was glad to be there and help to learn about the process.
Anyway, I have installed the block on the stand and am cleaning everything to prepare for re-installation of the parts to the block. I have a 37 manual but don't see any torque specs. I am going to install the main cap bolts into the block and wonder what the specs should be and also to tighten the caps on the crank once it is in place. These have castle nuts with cotter pins.
Any advice welcome!!!
:)

Comments

  • [Deleted User]
    [Deleted User]
    Can't help with the specs, But I am parting a 37 Terra with a 6 cyl. It's froze, but may have some parts if you need something.. Todd 218-208-2080
  • Geoff
    Geoff Senior Contributor
    The problem with giving torque specs is that once you have gone to a specific setting the holes may not align with the slots in the nuts. And if you think about it, what is the point of using split pins in studs? What is to stop the studs from unscrewing for the block? Tighten the mains up to 55 lbs, and then tighten further if the holes don't align. Once you have the holes aligned, use wire through them , and twitch together in the middle. For the con rods, tighten to 35 lbs and then align the holes. You can of course use split pins in the rod bolts.
  • Kdancy
    Kdancy Senior Contributor
    Well, it's not getting off to a good start. I cleaned the block and was looking the deck over and found a crack between #2 cylinder and a head bolt hole. Not easy to see but I could see it and took it back down to the machine shop. Decided to sleeve #1 and #2. The engine had been rebuilt some time back (don't know when) and never run. It had been bored .30 over and new pistons and rings installed. Found a broken top ring on #4 piston when I pulled them out. #1 hole looked like it had had water setting in the bore and was pitted, looked the the .30 overbore had not taken all the pits out to me so that is why I made the decision to sleeve that one as well.
    :(
  • Unknown
    Unknown
    Sounds familiar! i took apart 4 motors trying to find a suitable block for my 36T.
    Every one was a compromise,one had good,unbored cylinders but cooling chamber corrosion,another looked excellent but had two nasty cracks,a third had 3 badly scored cylinders.Taking the cylinders out to 40 thou over seems to be ok,i recently pulled apart a 37T engine from a hill climb special that had been taken out to 60 thou and run in several classic hill climbs to no ill effect.
    Good luck,keep us posted;)
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