Geoff
I just dealt with a very similar sounding problem. Easy solution - replace your
condenser!!
Bob A
TR3 - TS57799L
Musson, Carl wrote:
> Geoff - I am forwarding your note to the Triumph Mailing List (Subscription
> info @ http://www.vtr.org/mailing-list.html ) for contact information and
> you may get some additional responses about the backfiring from them.
>
> How long have you let it idle? Has it gotten up to normal working
> temperature? If not, let it idle longer and see if the backfiring
> diminishes.
>
> Otherwise, it could be any of several things (or combinations)
>
> Check spark plugs for correct ones (Champion L-87Y or equals) with correct
> gap.
> Check Timing and Advance/Retard on Distributor
> You mention cleaning the carbs; Check fuel mixture (it can be either too
> rich or too lean and cause backfiring)
> Make sure you are using fresh fuel - the older the fuel the more it acts
> like a weak mixture
> And at that point you are beyond my capabilities. It could be the valves
> (not seating properly) or their timing.
> It could also be a cracked head gasket which I believe lets air into the
> system.
>
> Good luck
> Carl
>
> -----Original Message-----
> From: Geoff Knudson [SMTP:gknudson@mindspring.com]
> Sent: Sunday, June 04, 2000 9:04 AM
> To: musson@arts.usf.edu
> Subject: TR-3B
>
> Carl,
>
> I have a TR-3B and need advice. The car starts and idles OK. When "revved"
> it belches and backfires. I have cleaned the carbs but can not get it
> tuned. What else should I check?
>
> Any suggestions?
>
> Also, do you know a good TR mechanic in the Greenville SC area?
>
> Thanks,
>
> Geoff Knudson
> Salem, SC
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