Back again, managed to get the classic 1994 3.9 V8 running but boy does it smoke, statement, not question. It's blue smoke so oil related I assume (I've been wrong before LOL) and, as I can't afford to replace the engine, or have the wherewithal to strip this one, does any-one have ideas I could try to cut this down to a manageable level, well one that would pass MOT emission test? I've seen various piston sealants and engine restorers on fleabay, anybody had any luck with any? As usual, all help much appreciated. Thanks.
Smokey V8
- Thread starter peanuts01
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
- Posts
- 58,170
- Location
- Preston Lancs.
Valve stem oil seals and or piston rings. Snake oil won't stop that. It may improve with more running, but will never be right until it's sorted properly.
- Posts
- 12,100
- Location
- Sud ouest France !
Could also be your valve stem seals, has it been sat for a while not running?
There are plenty of "just for now" additives but they are only provisional and never a good fix. If in doubt strip it out and fix the bugger.
But... Your budget as you say is the final word
There are plenty of "just for now" additives but they are only provisional and never a good fix. If in doubt strip it out and fix the bugger.
But... Your budget as you say is the final word
- Posts
- 12,100
- Location
- Sud ouest France !
A compression test taken with a warm engine and then a second with a little oil in each cylinder will tell you if your rings are worn.
Henry_b
Think outside, no box required.
- Posts
- 15,351
- Location
- somewhere else
Could be gummed up / Stuck Oil control rings from being sat..
Change the oil and thrash the tit's off it...
You could also drop some neat redex down the bores and leave it for a few days to eat away the carbon around the rings..
Spin it over to clear them out once marinaded, then take it for a good drive....
"compression test first though"
Change the oil and thrash the tit's off it...
You could also drop some neat redex down the bores and leave it for a few days to eat away the carbon around the rings..
Spin it over to clear them out once marinaded, then take it for a good drive....
"compression test first though"
- Posts
- 12,100
- Location
- Sud ouest France !
+1Could be gummed up / Stuck Oil control rings from being sat..
Change the oil and thrash the tit's off it...
You could also drop some neat redex down the bores and leave it for a few days to eat away the carbon around the rings..
Spin it over to clear them out once marinaded, then take it for a good drive....
"compression test first though"
- Posts
- 12,100
- Location
- Sud ouest France !
Try the tips given and see how you get on, unfortunately the current climate might not allow a good long run unless you shop in Scotland or Cornwall...
Brilliant advice as usual, I'll do what you've said Henry_b sounds like things I can do, Redex, oil and filter ordered in the hope the compression test is 'successful' (ever the optimist, typical Land Rover owner?!) . Be nice to take it for a run Mark but it's off the road (in a farm yard) with no MOT, so, as work progresses, there'll be more posts. Stay safe people.
Petrol gauge warning light was on so 5 gallons of fresh put in. The smoke didn't seem excessive when I started it on first inspection (never over revved as it was in a tight confined space, not taken for a run as I wasn't buying a pristine car, it was bought on the understanding it had been standing for a year and the price paid reflected that) nor when the seller put it on the trailer, it's only giving it a bit of stick when it was parked up that the problem became evident, it has had new dizzy, cap, leads, plugs and coil and, on removal, the plugs were well oiled up so I presume it must have had the problem previously.
dubbleRR
Well-Known Member
- Posts
- 1,011
- Location
- highlands of Scotland
Along with all of the above,.Check the crankcase ventilator sometimes the pipes chock up with emulsified oil ..Back pressure can push oil past the rings,Mind if you have back pressure that can put oil through the ventilator ..viscous circle ...........RR
......RRCauses the crankcase to pressurise & oil leaks out of all sorts of interesting places.Along with all of the above,.Check the crankcase ventilator sometimes the pipes chock up with emulsified oil ..Back pressure can push oil past the rings,Mind if you have back pressure that can put oil through the ventilator ..viscous circle .....
My 3.5EFi had this problem when I bought it. The passageway in the plenum body was blocked solid.
- Posts
- 18,941
- Location
- Buckinghamshire, UK. ('95 DT)
The Police are in hiding. I just went down the road and it was beautifully clear. Well over cough-cough mph as only car on the road.
norseman
Well-Known Member
- Posts
- 3,153
- Location
- Essex - UK
A compression test taken with a warm engine and then a second with a little oil in each cylinder will tell you if your rings are worn.
Throttle wide open whilst you are cranking, I believe is the case.
- Posts
- 18,941
- Location
- Buckinghamshire, UK. ('95 DT)
I've never bothered with WOT. Just spun it over, with appropriate steps to stop it firing.
- Posts
- 58,170
- Location
- Preston Lancs.
You are not getting a correct reading then. Remove plugs from all cylinders, attach gauge, throttle fully open and crank for same amount of time for each cylinder is the correct way to do it.
- Posts
- 18,941
- Location
- Buckinghamshire, UK. ('95 DT)
As long as they were all in the same ball-park I figure they're probably good enough.
