I'd hold off on the epoxy until I ascertained what was going on. And even
then, I think I'd make my solution reversible -- some future owner may want
to restore the emissions plumbing, for instance, or the state might crack
down as they are threatening to do in CA.
It isn't surprising that an intake leak caused backfiring problems. But I'd
try a similar, temporary fix to see if your worst suspicions are grounded.
on 3/19/03 9:56 AM, MGMagnette@aol.com at MGMagnette@aol.com wrote:
> Car: 1972 MGB with emissions removed. On the intake manifold, there was a
> small take off for something emmissions related that the DPO capped with a
> small rubber tube and a screw inserted in the end. Ok, thats hokey, but it
> lasted without fault for the 10 years I owned the car. Until last night.
> The car started to backfire violently, I popped the hood, and noticed that
> this cap was gone. My question is hypothetical though... I'm about to go to
> the hardware store to epoxy this hole shut. If this doesn't cure the issue,
> I am to assume pressure in the manifold blew that little rubber cap right
> off. What would cause this? I just fear my problem isn't that this little
> cap, a decade old, decided to give up the ghost randomly. I fear that
> something in this engine is gone wrong and created backpressure blowing the
> piece off. Your thoughts?
>
> John
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
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