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| Re: A12 flywheel to crank Bolts needed |
Subject: Re: A12 flywheel to crank Bolts needed
by edp on 2019/9/30 0:29:50
Hey David,
so these bolts are rather confusing.
I scrounged a set from another A12 I have , I'd left them screwed into the crank - although one is bent, not sure how that happened...
Here's what I've figured out -
Bolts marked 62 are a M10 - 1.25 pitch , "fine"
Non stamped bolts that came from both the A12's are NOT M10 - 1.00 "extra fine" pitch- I thought they were correct but buying some temp bolts of that size I proved they dont fit into the crank.
the designation you showed below of 3/8 x 24 UNF (Unified Fine Thread) I'm not sure if that type of bolt is a nominal diameter of a M10 but maybe. A trip to Tacoma screw tomorrow hopefully will answer that.
I know that Datsun uses a BPT (British Pipe Thread) on the oil pump holes for fitting a pressure gauge to it so it doesnt surprise me
that they have other screwy standards mixed into the cars.
Its pretty annoying when you cant find a bolt though...waah :)
Maybe the 62 bolts fit the A14's & 15's, I believe that's whats on the A15 in the car but cant tell at this point. but they certainly do NOT fit the A12 cranks I have.
More weird Datsun info for the Wiki!
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