MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: Peterj on December 22, 2020, 11:16

Title: Exhaust Fumes
Post by: Peterj on December 22, 2020, 11:16
I took the roadster for a short run because the car has seen little use in recent months and noticed that after it had warmed up there was excessive smoke at idle.

The smoke all but disappeared when I returned home but I noticed that after parking the car in the garage that unusually it was smoking from the tailpipe after the engine turned off?

It is on fairly low miles but still has the pre-cats fitted and wondered if this could be related to them failing.

Hopefully not but any advice appreciated.

Pete
Title: Re: Exhaust Fumes
Post by: Carolyn on December 22, 2020, 11:36
It could just have a lot of moisture build-up in the silencer.  It can take quite awhile to get it all out. You might try a longer run out? No guarantees, but...
Title: Re: Exhaust Fumes
Post by: AdamR28 on December 22, 2020, 12:35
Quote from: Peterj on December 22, 2020, 11:16unusually it was smoking from the tailpipe after the engine turned off?

Smoke or water vapour?
Title: Re: Exhaust Fumes
Post by: Peterj on December 22, 2020, 13:16
It was more like smoke but there was no smell of oil or un-burnt fuel from it?
Title: Re: Exhaust Fumes
Post by: Ardent on December 22, 2020, 19:01
what colour was the smoke?
White?
Black?
Blue?
Title: Re: Exhaust Fumes
Post by: Joesson on December 22, 2020, 19:30
A little while back @Carolyn provided this useful guide :

Black smoke, fuel.
Blue smoke, oil.
White smoke, coolant
Pink smoke, too many mushrooms.
Title: Re: Exhaust Fumes
Post by: Peterj on December 23, 2020, 11:39
Thanks all for the advice,
I've been out this morning, dipped the oil and checked the coolant - all good.

Started it up and all nice and clean, got up to temperature fine and all OK so will try and get out for a run when its dry - Lockdown allowing!