Re: alfa-digest V8 #734

[Lance Dong <araknd@domain.elided>]

Dave,

That used to happen to me on when I had an '86 Quadrifolio; right after I
bought from the P.O.  Couldn't figure it out for the longest time, until one
day I also shredded the fan and fan shroud.  When I took it to my mechanic,
Foreign Auto Menders, Danny figured out the motor mounts were worn to the
point that when the engine accelerates it rotated enough to pull the duct
off sensor fitting and the last time it did it, it also pulled the fan up
enough to impact the fan shroud.  He replaced the motor mounts and no
problems after that.

-- 
Ciao!

Lance Dong

1982/87 GTV6 Balocco (Margherita)

Alfa Romeo Sempre il Primo!


on 5/15/02 2:38 AM, alfa-digest at owner-alfa-digest@domain.elided wrote:

> Date: Wed, 15 May 2002 02:04:52 -0400
> From: "Dave Martin" <dwmartin@domain.elided>
> Subject: Air intake duct comes loose
> 
> Hello listers, you have been so helpful - here is another question -
> The air intake duct on my 87 Spider Quadrifoglio keeps coming loose.
> This is the duct that connects to the air flow sensor and goes across the
> top of the engine to another duct that then connects to the throttle body.
> It is the duct-to-air flow sensor joint that keeps coming loose.  This
> connection is just a slip fit, with a clamp like a large hose clamp.  There
> is no ridge or lip on the mating surface of the air flow sensor to help keep
> the duct on, and the way that all the parts fit on my car, there is some
> tension on this joint such that the duct keeps pulling off.  I'll be able to
> drive okay for maybe a few months, maybe only a week or so, and then
> sometime when accelerating from start, I'll get a great big nothing from all
> the false air being let in - that's my cue to get the screwdriver that I
> keep handy, pop the hood, and reattach the duct: loosen the clamp, push the
> duct back on, retighten the clamp. It's kind of a pain in the neck and I'm
> looking for a more permanent solution.
> I've removed the duct and washed it thoroughly to degrease it, wiped off the
> mating surface of the air flow sensor to degrease it and thus help keep the
> connection for a while longer, but nothing works for good.  I've thought of
> trying to adjust the positions of components so that there is a better fit
> and no tension on the joint, but all I can see to try is to get some really
> fat washers (or a small stack of 'em) and use them to shim up the air
> cleaner body.  Not sure that this will work and I haven't yet tried it.
> Has anyone had a similar problem?  What was your solution?  Anyone have any
> other ideas?
> 
> Dave Martin
> Endwell, NY
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