Hot gas out of one exhaust and cold gas out of the other?
Hot gas out of one exhaust and cold gas out of the other?
Author
Discussion

Scrooloose

Original Poster:

888 posts

246 months

Tuesday 30th December 2008
quotequote all
I was warming the Cerb up before leaving work tonight and noticed that I was only getting steam from one exhaust (hot gas and cold air, before anyone points out that you don't get steam out of the exhaust!).

At that point, one exhaust was pushing out hot gas and one cold.

About 3/4 mins later, this was still the same.... A couple of minutes later, they were both hot.

Anyone know why? I'd expect them to be roughly the same temperature.

Gas Man

3,598 posts

224 months

Tuesday 30th December 2008
quotequote all
Does your exhaust have a big back box, where the two pipes are connected or do you have separate "sports" pipes for each bank of the V??

By the way is it water condensation that you can see, commonly called steam.

We need more of an expert on the engine management system, as it may be possible only one bank of the vee has cold start enrichment, which could be standard??

I had to have a throttle pot changed recently as it was running very rich on the left bank and failed the MOT! So that could be a possibility, as before it was replaced, the left bank always produced steam but the right one did not. I have separate sports exhaust not linked.


Hope this is of some help?


Scrooloose

Original Poster:

888 posts

246 months

Tuesday 30th December 2008
quotequote all
Yep it's steam.....

Straight through pipes, with no box.

I'm running an Emerald, which only reads from one throttle pot anyway...

I'll hook up the software and check the enrichment :-)

Allandwf

1,773 posts

225 months

Tuesday 30th December 2008
quotequote all
Sounds normal to me. Mine is the same, but has the "big" back box.

marcus1970

1,217 posts

265 months

Thursday 1st January 2009
quotequote all
Scrooloose said:
I was warming the Cerb up before leaving work tonight and noticed that I was only getting steam from one exhaust (hot gas and cold air, before anyone points out that you don't get steam out of the exhaust!).

At that point, one exhaust was pushing out hot gas and one cold.

About 3/4 mins later, this was still the same.... A couple of minutes later, they were both hot.

Anyone know why? I'd expect them to be roughly the same temperature.
Was the left one steaming and the right one not?

Mine was doing this the other day directly after start up.

MB

Gas Man

3,598 posts

224 months

Thursday 1st January 2009
quotequote all
Just been out in mine and it steams on the left nearside bank still!


Scrooloose

Original Poster:

888 posts

246 months

Friday 2nd January 2009
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Yep. Left steaming, right not,

Allandwf

1,773 posts

225 months

Friday 2nd January 2009
quotequote all
That'll be the norm then. One less thing to worry about ;-)