[AMC-list] Tom's crank shaft bolt issue

[Nick ALFANO <71amx@xxxxxxxxxxxxx>]

Hi Tom,

A couple of questions first.  Did you install the oil slinger on the end of the 
crank before you installed your timing cover?  Second, I know this is a stupid 
question but humor me, do you have the timing chain installed and is it the 
correct style?  Did you use a balancer installation tool to fully seat the 
balancer before you put the pulley on and then the nut and washer?  If the 
answer to all of these is yes, and your balancer is able to keep pulling in 
until it rubs against the timing cover, then I think you have an issue with your 
balancer or the end of your crank.  The balancer should bottom out on the end of 
the crank (not the bolt) well before it hits the timing cover.  You never want 
your crank shaft bolt to bottom out inside the crank.  If that happens, you will 
not have the proper torque pressure applied to the washer and balancer and you 
could potentially strip out the threads in your crank or break off the bolt 
inside of it.  


Do you know how much thrust end play you had in your crank?  If the crank is 
allowed to move back too far, this could be causing your issue.  Your end play 
would have to be way off.  

Nick
 Alfano Performance
4849-76 st.
Kenosha, WI. 53142
262-308-1302
262-942-8271 after 6pm central and weekends 


Message: 5
Date: Wed, 15 May 2013 07:16:00 -0700
From: "Thomas Garner" <Tgarner@xxxxxxxxxxxxxx>
To: "AMC List" <amc-list@xxxxxxxxxxxx>
Subject: [AMC-list] (no subject)
Message-ID: <20130515071600.A0FD1726@xxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="UTF-8"

Ok, I know I"m a slow engine builder, but I keep hitting hurtles. My crankshaft 
bolt does not bottom out. I turn it and it keeps tightening. My old timing chain 
cover got trashed because of it. This makes it difficult to attach the engine to 
the flywheel since I can't turn the engine with a breaker bar at the crankshaft 
bolt cause it won't turn the engine, till it crushes the cover.

I'm gonna get a longer bolt to tighten till it bottoms out in the crankshaft. 
I'm thinking maybe the crankshaft bolt isn't right.

Does anybody know how long the crankshaft bolt is? Maybe the washer is too 
thick, IDK.
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