Engine 'carbon cleaning' - Page 6

Malcolm Rouchy · Apr 18th, 2021, 08:21

Although this wont help with problems with a modern engine thats coked up, when I was serving in the RAF we had quite a few petrol engined Bedford RL 4x4 three tonners.

When they began to get coked up and if the mechanics were busy with other work, two mechanics would take a Bedford flat out around the airfield prairie track, one driving and the other one pouring Redex directly into the carburetor. Clouds of black smoke ensued, on one occasion the aircraft fire fighters thought the RL was on fire, they came roaring out of their hangers, blue lights and bells clanging, (we didnt have sirens in those days) ready to put out what they thought was a vehicle fire.

The trucks did tend to run a bit better, but they had a strange smell.

BarryCambs · Apr 18th, 2021, 09:49

I remember when emissions testing came in for the MOT and all the elderly cars owned by the elderly people in the village started failing. If they'd had a recent service, we'd drive them flat out on the dual carriageway to Newmarket and back (about 30 miles) to get fish and chips for everyone in the workshop lunch and they'd sail though!

stuart bowes · Apr 18th, 2021, 11:18

Ah the classic Italian tune up

Makes it harder when the gearbox changes for you though, it's a lot easier in a manual when you can really nail it. And blip / heel-toe down change to power hard out of bends etc

cheshired5 · Apr 18th, 2021, 12:45

Quote:

Originally Posted by stuart bowes

Makes it harder when the gearbox changes for you

Not really.
Just select one of the lower gear positions and it won't change to any gear higher than the selected position.

stuart bowes · Apr 18th, 2021, 12:57

yeah I suppose that's true.

ok well manual is just more fun then

stuart bowes · Apr 21st, 2021, 19:12

well this weeks figure is 20mpg

still Urban only. with the exception of one slightly longer than usual run which included a short stretch of country lanes

I think the main difference was going from 32psi to 35psi.

I also put a bottle of Cataclean in about halfway through the week

still too many variables to be sure but it's definitely an improvement

also I had alignment done today. I put the struts back on exactly dead on so camber was right in the middle (skill McGill) but the tracking was off in 2 different directions lol I guess it will also help having that straightened out. plus new tyres again at a good pressure

XC90Mk1 · Apr 21st, 2021, 19:53

Quote:

Originally Posted by cheshired5

Not really.
Just select one of the lower gear positions and it won't change to any gear higher than the selected position.

The geartronic is not good for this. In mine if I put it in manual it will let me rev it a little more but it will still cahange up early and drop down by it’s own accord.

The only way I can do it is with kick down.

stuart bowes · Apr 21st, 2021, 21:31

Yeah there's manual, and there's auto.. anything in between is just a gimmick in my eyes tbh

dont you still have the other options though, like L, 2, 3, 4. MAN / D, R P

or something like that

Still though I'm enjoying this auto, there is something really satisfying about driving a manual well and pushing a car to the limits of its grip and power but in every day traffic and with shouty kids in the back an auto just makes things a lot more relaxed. and my left hand is for holding my coffee

Horses for courses i guess

stuart bowes · May 15th, 2021, 00:03

update, after a couple of catacleans, new tyres at good pressures and the various minor repairs and tinkerings above.. now getting 21.5mpg

(still 100% urban)

still not done any A roads or motorways so I can only guess that it'll be closer to 30 on the longer runs but am happy everything is perfectly fine, just needed a bit of TLC

that is if I dont get bored of driving like an old lady and just put my foot down

stuart bowes · May 15th, 2021, 09:18

MOT done, emissions 'perfect' handbrake 'perfect' and 'immaculate underneath'

Side note I did get the handbrake down to 3 clicks for normal 4 clicks on a hill, but 100% would not achieve that without the adjusters. With brand new everything

Best feedback I've ever had on a car . I said to him did he think it was worth 3.5k and he sort of ummed and ahhed and went well yeah I guess if you like it enough lol well at least he didn't say no. Then it was just half hour chatting about minis and imps

Apr 18th, 2021, 08:21	#51
Malcolm Rouchy New Member Last Online: Feb 3rd, 2022 23:04 Join Date: Mar 2021 Location: Chesterfield Derbyshire	Although this wont help with problems with a modern engine thats coked up, when I was serving in the RAF we had quite a few petrol engined Bedford RL 4x4 three tonners. When they began to get coked up and if the mechanics were busy with other work, two mechanics would take a Bedford flat out around the airfield prairie track, one driving and the other one pouring Redex directly into the carburetor. Clouds of black smoke ensued, on one occasion the aircraft fire fighters thought the RL was on fire, they came roaring out of their hangers, blue lights and bells clanging, (we didnt have sirens in those days) ready to put out what they thought was a vehicle fire. The trucks did tend to run a bit better, but they had a strange smell. __________________ Per Ardua Ad Astra Last edited by Malcolm Rouchy; Apr 18th, 2021 at 08:29.

Apr 18th, 2021, 11:18	#53
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	Ah the classic Italian tune up Makes it harder when the gearbox changes for you though, it's a lot easier in a manual when you can really nail it. And blip / heel-toe down change to power hard out of bends etc __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link

Apr 18th, 2021, 12:57	#55
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	yeah I suppose that's true. ok well manual is just more fun then __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link

Apr 21st, 2021, 19:12	#56
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	well this weeks figure is 20mpg still Urban only. with the exception of one slightly longer than usual run which included a short stretch of country lanes I think the main difference was going from 32psi to 35psi. I also put a bottle of Cataclean in about halfway through the week still too many variables to be sure but it's definitely an improvement also I had alignment done today. I put the struts back on exactly dead on so camber was right in the middle (skill McGill) but the tracking was off in 2 different directions lol I guess it will also help having that straightened out. plus new tyres again at a good pressure __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link

Apr 21st, 2021, 21:31	#58
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	Yeah there's manual, and there's auto.. anything in between is just a gimmick in my eyes tbh dont you still have the other options though, like L, 2, 3, 4. MAN / D, R P or something like that Still though I'm enjoying this auto, there is something really satisfying about driving a manual well and pushing a car to the limits of its grip and power but in every day traffic and with shouty kids in the back an auto just makes things a lot more relaxed. and my left hand is for holding my coffee Horses for courses i guess __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link Last edited by stuart bowes; Apr 21st, 2021 at 21:40.

Apr 18th, 2021, 09:49	#52
BarryCambs Senior Member Last Online: Aug 17th, 2023 14:13 Join Date: Oct 2011 Location: Cambridge	I remember when emissions testing came in for the MOT and all the elderly cars owned by the elderly people in the village started failing. If they'd had a recent service, we'd drive them flat out on the dual carriageway to Newmarket and back (about 30 miles) to get fish and chips for everyone in the workshop lunch and they'd sail though!

May 15th, 2021, 00:03	#59
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	update, after a couple of catacleans, new tyres at good pressures and the various minor repairs and tinkerings above.. now getting 21.5mpg (still 100% urban) still not done any A roads or motorways so I can only guess that it'll be closer to 30 on the longer runs but am happy everything is perfectly fine, just needed a bit of TLC that is if I dont get bored of driving like an old lady and just put my foot down __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link

May 15th, 2021, 09:18	#60
stuart bowes trying to be helpful Last Online: Today 15:55 Join Date: Aug 2020 Location: Dagenham	MOT done, emissions 'perfect' handbrake 'perfect' and 'immaculate underneath' Side note I did get the handbrake down to 3 clicks for normal 4 clicks on a hill, but 100% would not achieve that without the adjusters. With brand new everything Best feedback I've ever had on a car . I said to him did he think it was worth 3.5k and he sort of ummed and ahhed and went well yeah I guess if you like it enough lol well at least he didn't say no. Then it was just half hour chatting about minis and imps __________________ V70 '01 auto petrol 2.4 (140) 70k ------------------------- mini project - link

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