Back fire

PostPost by: el torro » Sun Dec 30, 2018 7:38 pm

Happens at idle speed but not on acceleration/ return to idle , on Weber dcoe big valve twin cam,any hints welcome or recommended experts in Scotland
el torro
Second Gear
Second Gear
 
Posts: 199
Joined: 02 Aug 2013

PostPost by: benymazz » Tue Jan 01, 2019 5:32 am

Any advice I can offer is purely speculative and based on my very limited experience, but is it backfiring through the intake, or is it an "after-fire" (in the exhaust)?
1965 S2 26/4623
Life is like a sewer, what you get out of it depends on what you put into it.
"I'm never gonna financially recover from this"
benymazz
Second Gear
Second Gear
 
Posts: 172
Joined: 11 Jul 2016

PostPost by: Donels » Tue Jan 01, 2019 10:41 am

My guess would be an air leak, probably from the rubber seals/misab plates between carbs and manifold.

Dave
Elan +2
Elise mk 1
Donels
Fourth Gear
Fourth Gear
 
Posts: 681
Joined: 10 Sep 2016

PostPost by: el torro » Tue Jan 01, 2019 2:15 pm

Thanks for reply yes I will tighten up carbs to inlet manifold I have fitted the Swedish plates so I think they should take more pressure
el torro
Second Gear
Second Gear
 
Posts: 199
Joined: 02 Aug 2013

Total Online:

Users browsing this forum: No registered users and 16 guests