Smokey Engine
Smokey Engine
I need to know whats the go with the 179 that I put in my car, second hand engine that runs like a dream but smokes out of the rocker cover but not a puff out of the exhaust, WTF, Trev
[img]http://i47.photobucket.com/albums/f177/trevwood/WOOFTOsmall.jpg[/img]
Woofto Car Club Member No3
Woofto Car Club Member No3
Hi Trev,
I can think of a few possibilities, does it have a PCV valve or just a breather pipe?
If it has a breather pipe - you can fit a PCV valve but need an alloy manifold with the intake at the carby for it.
If you have a breather pipe, check that it's not blocked/bent etc.
I expect your "smoke" is coming out of the front breather/filler cap?
If all this does not rectify the issue, chances are that there is exhaustl getting "blown" up past the seals on top of the valves - think this is call "by pass gas" and is burning oil on it's way out the rocker cover........
There may be other causes - I haven't got my engine thinking cap on at present - still playing with this new paint (by the way - I'll have a pair of "black eyes" for four days or so - damned glasses got some of it on them and I think you can imagine where they sat on my face...............
(that '60's hit - my canary has circles under it's eyes is coming to mind).
No matter - should attract some attention at the supermarket - just won't have Mrs. Burgess with me until it wears off.......... they'll look at her like she's a basher............
frats,
Rosco
I can think of a few possibilities, does it have a PCV valve or just a breather pipe?
If it has a breather pipe - you can fit a PCV valve but need an alloy manifold with the intake at the carby for it.
If you have a breather pipe, check that it's not blocked/bent etc.
I expect your "smoke" is coming out of the front breather/filler cap?
If all this does not rectify the issue, chances are that there is exhaustl getting "blown" up past the seals on top of the valves - think this is call "by pass gas" and is burning oil on it's way out the rocker cover........
There may be other causes - I haven't got my engine thinking cap on at present - still playing with this new paint (by the way - I'll have a pair of "black eyes" for four days or so - damned glasses got some of it on them and I think you can imagine where they sat on my face...............
(that '60's hit - my canary has circles under it's eyes is coming to mind).
No matter - should attract some attention at the supermarket - just won't have Mrs. Burgess with me until it wears off.......... they'll look at her like she's a basher............
frats,
Rosco
G'day Trev,
What sort of compression has it got?
Sometimes an engine which has been sitting around for a while can lose it's sealing ability somewhat and when restarted again a few years later may have excessive blowby past the rings which it sounds what may be some of your problem.This can ease up with use over a short time.
The old grays without positive crankcase ventilation would smoke out of the rocker cover as well.The early reds with non positive crankcase ventilation would also smoke somewhat.
PCV valves solved this in later reds as Rosco says.
Is the smoke just sort of swirling around or is it really puffing out/blowing out profusely??
If its puffing/blowing out at idle fairly consistant there may be a more sinister problem.
A road test may settle things down however and it may run fine given enough time.
Terry.
What sort of compression has it got?
Sometimes an engine which has been sitting around for a while can lose it's sealing ability somewhat and when restarted again a few years later may have excessive blowby past the rings which it sounds what may be some of your problem.This can ease up with use over a short time.
The old grays without positive crankcase ventilation would smoke out of the rocker cover as well.The early reds with non positive crankcase ventilation would also smoke somewhat.
PCV valves solved this in later reds as Rosco says.
Is the smoke just sort of swirling around or is it really puffing out/blowing out profusely??
If its puffing/blowing out at idle fairly consistant there may be a more sinister problem.
A road test may settle things down however and it may run fine given enough time.
Terry.
I can't think what to write here so this will do.
G'day Trev.
Smoke or fumes from the rocker cover breather is Blowby. Comon cause for this is worn compression rings and sticking and blocked oil control rings, there the ones on the piston that sit below the 2 compression rings.
Thats proberly why you cant see any smoke from the tail pipe.
A couple of things to try to free them up and help prevent are:
*Pull the plugs out and squirt around 150mls of Auto Transmission fluid down each of the cylinders. Let them soak for a couple days.
This will free the carbon and crap that sits into the ring lands and will work its way down to the oil control rings. Then use kero/fuel or mixture of premium and diesel at about 50/50. Then soak that down there as well for a couple of hours.
*Then use a internal flushing fluid, like a Pyrol, Wurth or Penrite product or similar to add to your engine oil and run the engine at fast idle for around 10 minutes, This will clean or the hard carbon and varnish off the insides of the engine as well as the pistons and rings.
Do a complete oil and filter change and use a good quality engine oil.
As well as checking the PCV as Trev and Rosco mentioned this may hopefully help your cause.
Regards John
Smoke or fumes from the rocker cover breather is Blowby. Comon cause for this is worn compression rings and sticking and blocked oil control rings, there the ones on the piston that sit below the 2 compression rings.
Thats proberly why you cant see any smoke from the tail pipe.
A couple of things to try to free them up and help prevent are:
*Pull the plugs out and squirt around 150mls of Auto Transmission fluid down each of the cylinders. Let them soak for a couple days.
This will free the carbon and crap that sits into the ring lands and will work its way down to the oil control rings. Then use kero/fuel or mixture of premium and diesel at about 50/50. Then soak that down there as well for a couple of hours.
*Then use a internal flushing fluid, like a Pyrol, Wurth or Penrite product or similar to add to your engine oil and run the engine at fast idle for around 10 minutes, This will clean or the hard carbon and varnish off the insides of the engine as well as the pistons and rings.
Do a complete oil and filter change and use a good quality engine oil.
As well as checking the PCV as Trev and Rosco mentioned this may hopefully help your cause.
Regards John
There's nothing as Sweet as a EK V8
Yep - sorry, gave you the wrong end of the cylinder - it is the rings end - was thinking about what I had typed whilst cleaning up the spray equipment.
If those valve seals are gone you'll get smoke at the exhaust on start up after a spell of the engine stopped............
Good advice Terry and John - will print it and slip it into the back of my journal................
frats,
Rosco
If those valve seals are gone you'll get smoke at the exhaust on start up after a spell of the engine stopped............
Good advice Terry and John - will print it and slip it into the back of my journal................
frats,
Rosco
Just to let anyone who cares how this went, followed the instructions upto the run the engine at fast idle for around 10 minuites, well I've never seen so much smoke, I was waiting for the fire brigade to turn up.oldnek wrote:G'day Trev.
Smoke or fumes from the rocker cover breather is Blowby. Comon cause for this is worn compression rings and sticking and blocked oil control rings, there the ones on the piston that sit below the 2 compression rings.
Thats proberly why you cant see any smoke from the tail pipe.
A couple of things to try to free them up and help prevent are:
*Pull the plugs out and squirt around 150mls of Auto Transmission fluid down each of the cylinders. Let them soak for a couple days.
This will free the carbon and crap that sits into the ring lands and will work its way down to the oil control rings. Then use kero/fuel or mixture of premium and diesel at about 50/50. Then soak that down there as well for a couple of hours.
*Then use a internal flushing fluid, like a Pyrol, Wurth or Penrite product or similar to add to your engine oil and run the engine at fast idle for around 10 minutes, This will clean or the hard carbon and varnish off the insides of the engine as well as the pistons and rings.
Do a complete oil and filter change and use a good quality engine oil.
As well as checking the PCV as Trev and Rosco mentioned this may hopefully help your cause.
Regards John
Keeping the faith I finnished with the method and went for the test drive, first kick in the guts and I smoked out at least 6 cars behind me
, about a kilometer on and she was running clean so I gave it a few more hard runs and it looks like this really works 
, got home and checked for smoke coming out the rocker cover and there was only the faintest puff.So, thanks John for your wise words of wisdom, Trev
.[img]http://i47.photobucket.com/albums/f177/trevwood/WOOFTOsmall.jpg[/img]
Woofto Car Club Member No3
Woofto Car Club Member No3
, Trev