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RE: [T3] Very disturbing noise...


On 14 Aug 2003 at 13:11, David Hornback wrote:

> Alrighty, I yanked the motor. First thing I noticed, the FAN was basically unbolted!
> It had also chewed up some of the gen. belt. I did notice a significant amount
> of endplay as well on the flywheel and assembley. I guess this what caused it.

I think the only thing this will hurt are the pulley and the fan. You may have 
to have the face of the fan machined flat again so the pulley will sit flat 
against it. You may also need to machine the pulley slightly also. Or you can 
replace both of them. I have good used parts if you need them. I've HAD parts 
which had been chewed up like this when the same thing happened.

None of this has ANYTHING to do with the flywheel end or the end play or the 
torque that you put on the gland nut.

It is most likely that this came loose either because you didn't torque it to 
the type 3 spec (which is considerably higher than the beetle spec,) didn't 
have the heavy wavy washer in there, used parts which had previously come loose 
and weren't machined flat afterwards, or you have AC and the extension bolt 
wobbled loose.

Note that it is rather difficult to torque this bolt to the type 3 spec unless 
you have the engine out and can put a stopper on the flywheel teeth to keep the 
crank from turning. The best suggestion I've ever heard for this was to take 
the #2 spark plug out and stuff rope down that hole with the #2 piston 
positioned to just be starting up on its compression stroke. Stuff as much in 
as you can and then torque the bolt, letting the piston rise up and compress 
against the rope and closed valves. Once you're done, back the crank off and 
pull the rope out.

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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