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Help! Backfire blown exhaust!

Posted: 11 Jan 2007, 19:31
by amazingdave
Hiya,

My van started being tricky to start a couple of weeks back, with the odd little backfire just as she started, then running like a pig until warm after which it runs perfectly normally all day even after 8 hours standing...

However today the backfire was 9/11 style and has blown the end off the previously good back box... A*se.

Any ideas whats causing my cold start pyrotechnics so i can remedy it before I (a)Do any more damage and (b)Get arrested under the prevention of terrorism act... :lol:

Whoops should of said... DG 1.9 1989. bright orange...

Ta, Dave.

Posted: 11 Jan 2007, 23:41
by Andy syncro-nutz
Stick to the basic's! its probibly just dampness in your dizzy cap! Wot engine you got?

Re: Help! Backfire blown exhaust!

Posted: 11 Jan 2007, 23:42
by Andy syncro-nutz
[quote="

Whoops should of said... DG 1.9 1989. bright orange...

.[/quote] oops !

Posted: 12 Jan 2007, 08:26
by Mocki
timing?
Ignition components?
Vac pipes?

Posted: 12 Jan 2007, 12:34
by j_robi
got a similar problem here mate. getting corcened about blowing a hole in the exhaust. been getting worse for the last month, then the other day just wouldnt start at all, backfire backfire!
going to have a look over her tonight

Posted: 13 Jan 2007, 09:25
by amazingdave
Cheers for the replies...

I'll have a look at the basics first as you suggest....

j_robi Watch out for your backbox! mine was in perfectly good condition till it blew apart :cry:

Dave.

Posted: 15 Jan 2007, 08:26
by j_robi
solution= new spark plugs!

Posted: 16 Jan 2007, 21:49
by amazingdave
yep, I replaced the plugs, leads and cap just to be on the safe side, all sorted!

however welding the exhaust was a bit sketchy... the exhaust was obviously filled with a good bit of fuel from me starting it up repeatedly cos a big blue flame shot out of the tailpipe and nearly took out my eyebrows as soon as I started welding. :shock: