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Re: Fan Belt Problem

To: ted@the-jacksons.net
Subject: Re: Fan Belt Problem
From: Ted Jackson <ted@the-jacksons.net>
Date: Wed, 19 May 2004 09:45:35 -0400
Thank you to all who replied. 
The unanimous diagnosis is failed front motor mount, with an additional 
warning that the rear mount should also be checked.
I'll be replacing both.

Ted

-- 
Ted Jackson
Toronto, ON  CANADA   


Ted Jackson wrote:

> Hi Listers,
>
> This is an early 1951 MGTD #5554
> For no particular reason except that the fan belt was solid (not 
> segmented) and of indeterminate age I decided to replace it with a 
> recommended new, segmented, belt.  That turns out to be a very good 
> decision because I now know the old belt was on its last legs - split 
> almost completely through.
>
> But, for me at least, nothing is ever as easy as it seems.  Moving the 
> generator and getting the belt off the generator and water pump and 
> over the fan blades was quite straightforward.  But... between the 
> crankshaft fan belt pulley and the underlying crossmember plate there 
> is not enough clearance to remove the old belt.  So I thought I would 
> use the hand crank to turn the engine over manually and walk the old 
> belt out that way.  But the crank comes in to the pulley nut too high 
> to engage the engine.  The crank used to work just fine.  It appears 
> that the front of my engine is 1/2 to 3/4 of an inch lower than it 
> should be.
>
> So, what's happening to me?  Motor mounts?   Something else that might 
> have broken?
> How much clearance should there be beneath the crankshaft pulley?
>
> Any help and guidance would be greatly appreciated.
>




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