Heartbreaking...
Discussion
Not sure if Steve is on PH but was gutted to see this in my feed this morning:
https://www.instagram.com/p/DW6M3VwDLJ0/
https://www.instagram.com/p/DW6M3VwDLJ0/
Apparently it wasn't the fuel lines.... It backfired through the intake during startup and set the air box on fire.
Discussed here early on...
https://m.youtube.com/watch?v=ThcwQZ0XsEc
Discussed here early on...
https://m.youtube.com/watch?v=ThcwQZ0XsEc
Unfortunately it's not the first... one reason I changed to a Carbon Fibre Airbox, Hinged the bonnet and carry a fire extinguisher and firestick .
Years ago I did consider a fitted extinguisher system , but never did it .
I am careful I don't crank it too much and flood it , with a hot engine sometimes it wouldn't catch ... so I'd just wait 10 minutes... never had the issue with the 4.5 and long starter motor.
I was once parked next to a Noble , as it came to stop , there was such an almighty bang as his airbox blew up and went through his bodywork ...so not just TVRs.
Years ago I did consider a fitted extinguisher system , but never did it .
I am careful I don't crank it too much and flood it , with a hot engine sometimes it wouldn't catch ... so I'd just wait 10 minutes... never had the issue with the 4.5 and long starter motor.
I was once parked next to a Noble , as it came to stop , there was such an almighty bang as his airbox blew up and went through his bodywork ...so not just TVRs.
Scarletpimpofnel said:
Wow what makes this type of car (seemingly) more likely to have this issue? Is it simply a larger capacity, when it does misfire, can fire more fuel into the airbox than smaller cars? So this is a big engine issue? Or is it something about the TVR design?
It’s generally known to happen on bigger engined cars when they get flooded with fuel.Many years ago I had a Jag XJ8 which was also prone to doing it if flooded. I has an AA man trying to start my XJ8 when flooded and he took the air box off before commencing work which suggests this issue has always been known about, and low and behold when he eventually got the car to fire it back fired through the inlet and a flame shot out 3 ft high.
If you suspect it’s ever flooded your choices are to take plugs out and turn engine over continuously for quite some time until the washed bores have re oiled themselves regaining compression as it simply won’t fire until both the excess fuel and bores are re oiled up or simply leave it in a well ventilated area say over night which should see most of the fuel evaporate. The main issue at this point is lack of compression so you’ll still have to turn it over with fuel pump disconnected to oil up the bores which restores compression or it will simply flood again.
BritishTvr450 said:
It s generally known to happen on bigger engined cars when they get flooded with fuel.
Many years ago I had a Jag XJ8 which was also prone to doing it if flooded. I has an AA man trying to start my XJ8 when flooded and he took the air box off before commencing work which suggests this issue has always been known about, and low and behold when he eventually got the car to fire it back fired through the inlet and a flame shot out 3 ft high.
If you suspect it s ever flooded your choices are to take plugs out and turn engine over continuously for quite some time until the washed bores have re oiled themselves regaining compression as it simply won t fire until both the excess fuel and bores are re oiled up or simply leave it in a well ventilated area say over night which should see most of the fuel evaporate. The main issue at this point is lack of compression so you ll still have to turn it over with fuel pump disconnected to oil up the bores which restores compression or it will simply flood again.
That is interesting and ties in with how the fire in mine started. I cranked it and it wouldn't fire, then cranked a second time and it lit up. Makes me feel a bit stupid in hindsight but hey ho.Many years ago I had a Jag XJ8 which was also prone to doing it if flooded. I has an AA man trying to start my XJ8 when flooded and he took the air box off before commencing work which suggests this issue has always been known about, and low and behold when he eventually got the car to fire it back fired through the inlet and a flame shot out 3 ft high.
If you suspect it s ever flooded your choices are to take plugs out and turn engine over continuously for quite some time until the washed bores have re oiled themselves regaining compression as it simply won t fire until both the excess fuel and bores are re oiled up or simply leave it in a well ventilated area say over night which should see most of the fuel evaporate. The main issue at this point is lack of compression so you ll still have to turn it over with fuel pump disconnected to oil up the bores which restores compression or it will simply flood again.
hxc_ said:
BritishTvr450 said:
It s generally known to happen on bigger engined cars when they get flooded with fuel.
Many years ago I had a Jag XJ8 which was also prone to doing it if flooded. I has an AA man trying to start my XJ8 when flooded and he took the air box off before commencing work which suggests this issue has always been known about, and low and behold when he eventually got the car to fire it back fired through the inlet and a flame shot out 3 ft high.
If you suspect it s ever flooded your choices are to take plugs out and turn engine over continuously for quite some time until the washed bores have re oiled themselves regaining compression as it simply won t fire until both the excess fuel and bores are re oiled up or simply leave it in a well ventilated area say over night which should see most of the fuel evaporate. The main issue at this point is lack of compression so you ll still have to turn it over with fuel pump disconnected to oil up the bores which restores compression or it will simply flood again.
That is interesting and ties in with how the fire in mine started. I cranked it and it wouldn't fire, then cranked a second time and it lit up. Makes me feel a bit stupid in hindsight but hey ho.Many years ago I had a Jag XJ8 which was also prone to doing it if flooded. I has an AA man trying to start my XJ8 when flooded and he took the air box off before commencing work which suggests this issue has always been known about, and low and behold when he eventually got the car to fire it back fired through the inlet and a flame shot out 3 ft high.
If you suspect it s ever flooded your choices are to take plugs out and turn engine over continuously for quite some time until the washed bores have re oiled themselves regaining compression as it simply won t fire until both the excess fuel and bores are re oiled up or simply leave it in a well ventilated area say over night which should see most of the fuel evaporate. The main issue at this point is lack of compression so you ll still have to turn it over with fuel pump disconnected to oil up the bores which restores compression or it will simply flood again.
hxc_ said:
That is interesting and ties in with how the fire in mine started. I cranked it and it wouldn't fire, then cranked a second time and it lit up. Makes me feel a bit stupid in hindsight but hey ho.
Truth is I only knew about this because it happened twice on my Jag and both times I was away from home so used the AA and they have seen this before, hence why they remove air boxes. Edited by BritishTvr450 on Thursday 30th April 13:17
Edited by BritishTvr450 on Thursday 30th April 13:23
keynsham said:
How do you flood a fuel injected engine? Surely if it will not start and ends up with too much fuel there must be another underlying issue?
In my case I started the engine one cold morning then realised id left something behind so instantly turned it off which was enough to flood it, probably because auto choke was adding fuel. It never happened when weather or engine was warm. I did 70,000 miles in my Jag and it was the only failure I ever had.
I m sure you can flood anything if you try hard enough, injected or not.
The main issue is washing the bores which is why you just make it worse by cranking it once it’s flooded unless you kill fuel supply.
It’s actually rare to have it happen but if air boxes are blowing apart it suggests flooding then back firing due to the excessive fuel in the engine.
Edited by BritishTvr450 on Thursday 30th April 13:22
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