Exhaust blocked ??

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Irishrover

Irishrover

Well-Known Member
Posts
5,317
Location
La Trimouille, Vienne, France
Here we go for a long story......Once upon a time an Englishman who came to Ireland a few years ago to educate the Irish :eek: went back to England on 13th December and returned home on 25th January. During that time, Er Indoors Mitsubishi Colt was parked tight to the garage doors for security reasons wth the handbrake off and in 1st. gear. The wicked fairy decided to freeze all the water supply to the house and fortunately, a good neighbour found that we had a couple of burst pipes when the water came back on. Following a phone call, I told her where the stop tap key was to be found in the garage. The Colt was rolled forward, key found and water turned off. Colt was rolled back and the handbrake firmly applied. When we returned home, rear brakes seized solid. Started V8 P38 in garage..fired straight up. Drove Colt off the drive with one rear wheel still locked. Drove P38 out of garage onto road. Colt was put in garage for repairs..went to P38 would not start, eventually started it and kept cutting out at idle, revved arse out of it and saw lump of something shoot out of tailpipe similar to a RPG, car ran better. Left P38 idling on drive until up to temperature then switched off. Now a pain in the ass to start again, my thoughts are that the condensation in the exhaust froze during the ultra cold weather of Dec./Jan and when it thawed, parts of the rusty interior of the exhaust broke away and partially blocked the system which in turn restricted the engine from "Breathing" properly, hence the bad starting/poor running. The exhaust system s around 4-5 years old and is mild steel.

You see folks that I not only reply to a few queries on here, but I also suffer from problems, albeit very rarely !!

That said, I would rather work on the P38 than the fiddly rear brakes on the Missus's Colt anyday.:D
 
Irishrover said:
Here we go for a long story......Once upon a time an Englishman who came to Ireland a few years ago to educate the Irish :eek: went back to England on 13th December and returned home on 25th January. During that time, Er Indoors Mitsubishi Colt was parked tight to the garage doors for security reasons wth the handbrake off and in 1st. gear. The wicked fairy decided to freeze all the water supply to the house and fortunately, a good neighbour found that we had a couple of burst pipes when the water came back on. Following a phone call, I told her where the stop tap key was to be found in the garage. The Colt was rolled forward, key found and water turned off. Colt was rolled back and the handbrake firmly applied. When we returned home, rear brakes seized solid. Started V8 P38 in garage..fired straight up. Drove Colt off the drive with one rear wheel still locked. Drove P38 out of garage onto road. Colt was put in garage for repairs..went to P38 would not start, eventually started it and kept cutting out at idle, revved arse out of it and saw lump of something shoot out of tailpipe similar to a RPG, car ran better. Left P38 idling on drive until up to temperature then switched off. Now a pain in the ass to start again, my thoughts are that the condensation in the exhaust froze during the ultra cold weather of Dec./Jan and when it thawed, parts of the rusty interior of the exhaust broke away and partially blocked the system which in turn restricted the engine from "Breathing" properly, hence the bad starting/poor running. The exhaust system s around 4-5 years old and is mild steel.

You see folks that I not only reply to a few queries on here, but I also suffer from problems, albeit very rarely !!

That said, I would rather work on the P38 than the fiddly rear brakes on the Missus's Colt anyday.:D
Click to expand...


And the moral is? Always drill a small hole in silencer boxes at lowest point to allow combustion generater water to drip out. Or be forced out when engine is running. Just like draining a compressor. Hard luck **** happens.:):)
 
holy crap! and i thought i was having unlucky weather/p38 problems!!!

ps you just bust my bubble that there was nothing that didnt surprise you when it came to P38's......! i almost see you as human again.....! :p:p:p
 
wammers said:
And the moral is? Always drill a small hole in silencer boxes at lowest point to allow combustion generater water to drip out. Or be forced out when engine is running. Just like draining a compressor. Hard luck **** happens.:):)
Click to expand...

I think I will fit those auto drain filters that are used on compressed air systems to the centre & rear boxes on the new exhaust when it arrives !!!:D
 
P38_Ireland said:
holy crap! and i thought i was having unlucky weather/p38 problems!!!

ps you just bust my bubble that there was nothing that didnt surprise you when it came to P38's......! i almost see you as human again.....! :p:p:p
Click to expand...

yeah but it would have taken the rest of us a few weeks and fifty posts to work out what happened :D:D:D
 
sandyt said:
yeah but it would have taken the rest of us a few weeks and fifty posts to work out what happened :D:D:D
Click to expand...


Don't underestimate yourselves guys...I pick up plenty of sound tips and suggestions from loads of people on here, even from "Newbies" !!

I am like everyone, only human and fallible,,,as others are quick to point out, when I am at my weakest......after a few pints !!!
 
Irishrover said:
I think I will fit those auto drain filters that are used on compressed air systems to the centre & rear boxes on the new exhaust when it arrives !!!:D
Click to expand...

Drilling a 3/16 hole in lowest point of new boxes was standard practice when i was a sprogg. Seems to have died out, but a blood good tip.
 
Sorry to hear you're woes matey.........I suspect your initial thoughts are correct, especially given that it was pretty much purrrrrfect before-hand!

Gotta be worth checking/eliminating at the very least, otherwise, how old is fuel in it? Might pay to top up with super-unleaded and give it a kick maybe?

Holy **** Batman, The Master's in trouble...........get Sherlock on the case, Quick!

PMSL!!!!
 
Irishrover said:
Don't underestimate yourselves guys...I pick up plenty of sound tips and suggestions from loads of people on here, even from "Newbies" !!

I am like everyone, only human and fallible,,,as others are quick to point out, when I am at my weakest......after a few pints !!!
Click to expand...

he has been on the black stuff methinks :p
 
I expect if there was a blockage in the exhaust on a cold start up the oxygen sensors may have sooted up and the fuel trims are still messed up, may need a drive to clear exhaust out and re set its self...

Cant think what else back pressure could do in your case...I have had modern petrol cars flooded when started twice on a cold start and they can take ages to get running again, usually at the cost of a starter ...?
 
Mice in the garage? have had a neighbour who found out a mouse was trapped in the exhaust once. Not much left of it except the tail once he floored it!
 
Mice seems more likely to me than enough ice to block up the exhaust. (wouldn`t condensation just form a layer on the bottom?) Surprisingly they don`t seem afraid of smelly black mess, as witnessed by tiny tracks leaving a bowl of waste oil left overnight in my garage! Good tip about drain hole in exhaust.
 
Sorry to hear of your troubles, hope there is not a lot of water damage in the house. Turn the water off before you leave home next time!
I reckon your RPG was a mouse or possibly a rat, here they eat leak off pipes and try to nest under the bonnet if you leave the car for a week. But hen French mice don't like to get their paws dirty up exhaust pipes.
 
back in the days when i used to be a boy racer a friend had an Impreza he had an back box that was big enough to stick your foot in to it, one morning he fired it op and it was running rough so floored it and loads of fluff came blowing out!! a cat had got in to it the night before when it was still warm to sleep!! he said it stunk for a week!!!
 
:behindsofa:
Well guys...Finished the brakes on the Colt, what a pain in the ass fighting against all the springs, levers, triggers and self adjusting mechanism...give me a Rangie anyday !!
Had a quick look at the P38, air filter as clean as a whistle, good fuel pressure at fuel rail, battery good. The bitch then took ages to start, kept trying to fire and after a load of cussing she decided to go. Plenty of condensation out of the exhaust and she idled well, nice and smooth. Had a look under the bonnet, it was dark by ths time..no signs of tracking from the HT leads/coil packs. Switched off and tried starting her again, went first time, just as she usually does and idled as smoothly as ever...the Bitch !!
All four lights on EAS switch and EAS fault on message display, car has decided to go to High and sits there.....job for later after I have checked the spark plugs. Car has half tank of petrol which I put in November, she was running perfectly until we came home last week. The battery was left on trickle charge (As it always is).
I'm putting a new exhaust, from the Cat's back anyway before we go back to the UK in March as it is a few years old, not blowing, but better to be safe rather than sorry as they tend to rot from the inside out.

Time now for some refreshment :beer2::beer2::beer2::bolt:
 
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