C'mon guys-I'd really like to hear the answer to this one-Nigel's been doing
the same thing and Dave hasn't had a chance to get down and dirty with him!
So he's not sure yet what the problem is.
Laura G. and Nigel
p.s.-Michael-try a goat next time you have a voodoo sacrifice-I notices this
in Martinique.
-----Original Message-----
From: Michael Graziano <mgrazian@ltcm.com>
To: 'Spitfires' <spitfires@autox.team.net>; Spridgets (E-mail)
<spridgets@autox.team.net>; MGList (E-mail) <mgs@autox.team.net>
Date: Friday, April 16, 1999 10:23 AM
Subject: Back to the Intake Backfiring - #$%#$%ing car
>
>OK. Next is the shotgun fix. I'm thinking 10 gauge birdshot, or maybe
just
>a few lead slugs.
>
>Quick symptons:
>
>1. Intake backfiring when accelerating and when coasting in gear. Once or
>twice when decelerating. Most noticable and annoying when beginning to
>accelerate out of coasting (RPM of 3k or so). Car bucks a lot.
>
>Car: '78 Midget 1500
>
>Things tried:
>
>1. Recheck for intake manifold and vacuum leak - nothing - still think I'm
>doing it wrong
> at idle, spray carb cleaner (gunk?) all around carb, intake
>and exhaust manifold
> Spray near EGR valve and distributor vacuum line hookup.
>Listen for increase
> of engine RPM. Right or Wrong? How much of an increase?
>Not more than 100RPM
>2. Adjusted valves - nothing
>3. Advanced timing - now worse
>4. Retarded timing - ran worse overall
>5. Enrichened carb (single ZS CD140) - more gas smell in exhaust - no other
>change
>6. Checked plugs - good shape - slightly white 1st time - darker after
>richer carb
>7. Distributor cap - new as well as the wires (8mm Accel)
>8. Oh yeah, the plugs are splitfires - less than 1K miles on them
>9. Checked distributor vacuum advance with MityVac. Moved about 1/4 inch
at
>the edge
> (counterclockwise, I think)
>10. Topped up Carb dashpot with Dextron III Tranny fluid - no change
>11. Checked Compression - all within 10 PSI around 130 or so.
>12. Voodoo incantations - no change - neighbors think I'm nuts -
> engine red from chicken blood
>13. Excorcism - no change - Catholic Church thinks I'm nuts
>
>Anyone have any other ideas?
>
>Michael
>
>Oh yeah: When towing, should i disconnect the driveshaft or leave it
>connected? ;-)
>
>
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