<VV> Engine misfire - coincidence or ...?

[J R Read_HML]

Well, you could try the timing light on a different car.  That way you can 
either rule it out or go get a different one.

If the harmonic balancer is going away - you can normally SEE that.  The 
marks will no longer be in line or the rubber will be squishing out from 
between the inner and outer portions.

Could the cause of the belt flipping be related to either the idler pulley 
or the alternator?  That should be easy to check.  Or, maybe it flips when 
the backfire occurs?

My cars all have points.  Can't comment on ignitor question.

Sounds like carburation to me.   The backfire.  A piece of dirt in one of 
the carbs - floating around and blocking things off momentarily?

But could be a ton of other things.  Do the problems come after driving a 
while or right away?  I'm thinking coil with that question.

Attachments (if any) are scanned with anti-virus software.

Later, JR

----- Original Message ----- 
From: "Guus de Haan" <guusdehaan@wanadoo.nl>
To: "VV" <virtualvairs@corvair.org>
Sent: Saturday, February 05, 2005 10:26 AM
Subject: <VV> Engine misfire - coincidence or ...?


> Hi,
>
> Some of you may remember the problems I've had with the Carter YH on my 
> Corsa Turbo. Well that is sorted out but because I can now actually drive 
> the car some new problems pop up. The engine is very hesitant under (very 
> ligt) load, running rough while driving and  every now and then giving a 
> big backfire. Running idle is pretty good and just revving up is no 
> problem.
>
> I've connected my timing light to see how the timing is set and strange 
> enough I can't get a proper reading! The light flashes intermittent and 
> the mark is nowhere to be seen. I've tried turning the distributor while 
> the engine was running and although the engine keeps on running the mark 
> is not to be seen. I've checked for the mark and it is there, also seems 
> to be in the right position compared to wire 1 on the distributor. The 
> engine is running on an Ignitor module now 7 years old with maybe 1500 
> miles on it. Another thing is I also had two fan belts flip lately which 
> I've never had before. The car has a Dale harmonic balancer, also about 7 
> years old and 2000 miles on it.
>
> So what could cause my problems?
>
> - Bad Ignitor?
> - Bad harmonic balancer?
> - Bad timing light?
>
> I'm thinking about installing some points but is there a way to test the 
> balancer and timing light as well?
>
> Any other suggestions concerning the misfire?
>
> Thanks!
>
> Guus de Haan
> '65 Corsa Turbocharged
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