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argh! broken main pulley... 120-130

uid 36727's pic
posted by  Mr. Happ on  Tue Mar 13 19:03 CST 2007
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last visit: Thu Nov 6 19:01 CST 2008
[RELATED]

Again- I'm dropping a B20 into the 122, but as I'm keeping the A/C system, there are a few parts that I'm swapping from my old engine to the new...

One of these is the main pulley (or so I thought), as it sports an extra pulley groove for the extra belt (A/C).

Well, today I finally got all the grime off of my old pulley and you can imagine my surprise to find it cracked!

the crack goes clear from one side:


all the way to the other:


The idea of forcing it back into place and having it welded crossed my mind, but I don't think it's worth risking the added imbalance to the new engine. Plus there must be one out there somewhere not being used...


Any chance one of you Brickboarders has a 2-groove A/C-accommodating main pulley sitting in your pile-O-parts?


Also, as an aside-
before pulling the pulley I had assumed that the key would be aligned to TDC. Does anyone know why it's not? I suppose this must be related to the machining process (/fixturing) of the crankshaft...



a pre-emptive thanks...

V.






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