Piston installation?

[rkymtnflyfisher]

Does it make a difference which way the pistons are installed in the block on a 2F? Looking at the FSM fig 3-162 and fig 3-160 clearly show the notch on the piston being installed toward the front, but the note beside fig 3-162 states install facing the rear. WTF over? Would it make a difference if they were installed with the notch facing the rear? I would guess it has more to do with oil flow to the con rod bearings more than anything.

 

[rkymtnflyfisher]

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[rkymtnflyfisher]

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[Spike Strip]

I think that paragraph might be missing a few words---

I've always read the notch should be toward the FRONT and the Toyota TEQ on rod should face rear, so oil hole faces the camshaft side of block, but I've never done it myself...

http://vintage.mitchell1.com/PClubData/chassis/enis82/V2I826326.pdf

 

[rkymtnflyfisher]

Wow, I don't know what I did the other night, but I have the oil hole on the correct side but have the notch facing the rear. Looks like I assembled the piston and rod bassackwards.

 

[Spike Strip]

Too many buds (either liquid or green) is my guess

At least you found it before the engine disassembled itself.

FWIW, I pulled a 2F outta a late 60 with a rebuild in it and found the pistons backwards like that. Most of the rings were broken. I did not rebuild it. I let MAFs pro do it. I mean the new, correct rebuild that I'm running now...

 

[simps80]

taking it apart:
Rising Sun Member Forums - View Single Post - got a 40 - now it begins

putting it back together:

Rising Sun Member Forums - View Single Post - got a 40 - now it begins

definitely toward the front

 

[rkymtnflyfisher]

I don't think I tossed any cold ones back that evening (at least not beyond the normal) it just sucks I spent all that time and have to go back to redo it. Hell, I was about to bolt the head down tonight and just wanted to double check my work when I noticed what I did. 2 steps forward 3 steps back........

 

[JohnnyC]

Yeah that does stink... But... It's much better than the alternative ...

pulling it after because there is a problem ... That's never fun

Good job being though

 

[rkymtnflyfisher]

Hopefully I don't break a piston ring pulling them out!

 

[emac]

I think that paragraph might be missing a few words---

I've always read the notch should be toward the FRONT and the Toyota TEQ on rod should face rear, so oil hole faces the camshaft side of block, but I've never done it myself...

http://vintage.mitchell1.com/PClubData/chassis/enis82/V2I826326.pdf

Nice overview of a 2F rebuild. thanks for the link.

 

[Solace in Solitude]