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        General >> Problems >> Scorpio 2.5 TDI Backfiring
        
(Message started by: scorpioking on Jan 30^th, 2006, 12:42pm)

Title: Scorpio 2.5 TDI Backfiring
Post by scorpioking on Jan 30^th, 2006, 12:42pm

Hi all,

I've got a 1995 N Reg 2.5 TDI Scorpio Ultima, and I've got what may be termed, a strange problem.

It backfires/ blows back through the inlet manifold. Has anyone got any ideas please.

Before anyone asks, I got the car like this, so I don't know how long it's been going on for.

I've noticed that it looks like its got new pipes to the injectors, and the pump looks like it could be new, but I'm not sure.

I hope somebody may be able to help.

Thanks a lot

Regards Pete

Title: Re: Scorpio 2.5 TDI Backfiring
Post by martin_rowe on Jan 30^th, 2006, 1:12pm

Check push rods & rockers.

Title: Re: Scorpio 2.5 TDI Backfiring
Post by scorpioking on Feb 1^st, 2006, 8:28pm

Thanks for the advice mate, but there was no problem there. Any more ideas at all anybody?

Title: Re: Scorpio 2.5 TDI Backfiring
Post by martin_rowe on Feb 2^nd, 2006, 8:28am

if its the engine then it will be valve related, or does is the vacuum pump (brakes) feed from the inlet manifold, that can make the engine sound rough

Title: Re: Scorpio 2.5 TDI Backfiring
Post by scorpioking on Feb 4^th, 2006, 2:09pm

Ok Folks, Here's an update.

Someone else checked The Valves and pushrods as per martins suggestion, and came back to me saying that everything is ok.

Anyway, today being the warmest day so far, for a while, I thought I'd check them myself, and guess what I found....... One of the pushrods had jumped out of the socket ;D

So, thanks for your advice Martin, you were spot on mate.....

My next question is, is it a common occurance for this to happen, and what can I do about it?

Thanks all, especially martin.

Regards Pete

Title: Re: Scorpio 2.5 TDI Backfiring
Post by Snoopy on Feb 4^th, 2006, 4:57pm

It does seem to happen only on the TD variant of the Scorpio. We have had a few reports in the past of this happening but nothing I would construe as a serious problem.
I would sugest just keeping a eye on it .

Title: Re: Scorpio 2.5 TDI Backfiring
Post by pustagris on Feb 5^th, 2006, 9:11am

I had this problem several times. Then I changed all 8 push rods to new ones. The old ones where about 1 -2 mm shorter than the new ones. Since this exchange I had no further troubble.

regards
Pustagris