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lj50 engine very smokey
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Author:  jamiec [ Tue Feb 14, 2012 5:35 pm ]
Post subject:  lj50 engine very smokey

Hi my lj50 engine in my carry van is very smokey i have set the oil pump and still very smokey :? so i changed the oil in the tank as it was the oil that came with the van and not sure if that oil has been in there for the 15 odd years the van was parked in a shed and still very smokey :( . So i have drained the fuel out of the fuel tank and put fresh fuel in it just in case some one had done a premix still very smokey :x . So thinking just maybe while the van was parked up for all those years some oil may have drained from the oil tank and into the crank case :roll: Then i disconected the oil feed line to the oil pump and left the van idle while giving it a little rev now and then for 45 minutes and its still smokey :evil: Could there be oil in the crank case still after that time if oil had indeed worked its way in over all those years parked?

Thanks for any help

Jamie

Author:  MrRocky [ Tue Feb 14, 2012 6:44 pm ]
Post subject:  Re: lj50 engine very smokey

smoke is good it means your engine is getting plenty of oil which is going to keep it alive, no smoke at all is a worry

Author:  jamiec [ Tue Feb 14, 2012 7:06 pm ]
Post subject:  Re: lj50 engine very smokey

Some smoke is good but looking like its doing a burnout is to much. I just don't understand where all the oil is coming from after all i did and with the oil pump
feed line disconected.

Author:  MrRocky [ Tue Feb 14, 2012 7:14 pm ]
Post subject:  Re: lj50 engine very smokey

is it just on startup ?
is the choke stuck on ?

Author:  alien [ Tue Feb 14, 2012 7:23 pm ]
Post subject:  Re: lj50 engine very smokey

you sure there isnt a coolant leak?

Author:  sideways [ Tue Feb 14, 2012 7:36 pm ]
Post subject:  Re: lj50 engine very smokey

Rebuild your pump.

http://www.lj10.com/howto/cciscleaning/

While you're there, get a pipe cleaner and clean out all the lines, readjust the throttle cable and then it should be fine.

It should barely smoke at all.

Author:  shep [ Tue Feb 14, 2012 7:43 pm ]
Post subject:  Re: lj50 engine very smokey

if i had a 2 stroke car i would make it really smoky and feed it caster oil 8)

Author:  atari4x4 [ Tue Feb 14, 2012 7:44 pm ]
Post subject:  Re: lj50 engine very smokey

shep wrote:
if i had a 2 stroke car i would make it really smoky and feed it caster oil 8)


smells like speedway night :D

Author:  sideways [ Tue Feb 14, 2012 7:50 pm ]
Post subject:  Re: lj50 engine very smokey

shep wrote:
if i had a 2 stroke car i would make it really smoky and feed it caster oil 8)


+ methanol. :D

Author:  britvit [ Tue Feb 14, 2012 7:54 pm ]
Post subject:  Re: lj50 engine very smokey

Castrol R FTW 8)

Author:  shep [ Tue Feb 14, 2012 8:21 pm ]
Post subject:  Re: lj50 engine very smokey

britvit wrote:
Castrol R FTW 8)


castrol M is even more awesome :wink:

Author:  MrRocky [ Tue Feb 14, 2012 8:33 pm ]
Post subject:  Re: lj50 engine very smokey

some smoke is perfectly normal and on startup alot is normal particulary
if u use the choke. Try changing the plugs too

Author:  jamiec [ Tue Feb 14, 2012 8:55 pm ]
Post subject:  Re: lj50 engine very smokey

No there is no coolant leak and it is oil smoke. It does smoke on startup and it gets more smokey after it has had a drive and it is idleing.
This motor has only done 40000klm from new but stored for over 15 years. The oil pump seems to be working fine. I had the oil pump feed line disconected and idled the motor with a little bit of a rev now and then for over 45 minutes and it still smokes so my question is where is the oil coming from? As the fuel was drained and replaced incase someone did a premix and i replaced the oil in the tank colud it have been possible for the oil in the tank to have leeked down into the crankcase through the oil pump and feed lines over the years the van was stored?

Author:  MrRocky [ Tue Feb 14, 2012 9:22 pm ]
Post subject:  Re: lj50 engine very smokey

could be sitting in the exhaust system, i had a subaru do this a few years ago
just needed a couple hours on the road to burn it of and then it was fine

Author:  jamiec [ Tue Feb 14, 2012 9:34 pm ]
Post subject:  Re: lj50 engine very smokey

Yep i have been thinking that was also a possibility as it would explane why it seems to make more smoke after a drive. I was hoping to get this booked in for a road worthy but i am not game to take it in with this much smoke coming out.

Author:  jamiec [ Fri Feb 17, 2012 7:08 pm ]
Post subject:  Re: lj50 engine very smokey

When i drained the fuel and let some dry out on a plate there was a fair bit of oil left behind so with the premix in the fuel plus the standed oil injection it must have built up some excess oil in the muffler like MrRocky said. So after lots of driving it has cleared up veary well and has now passed the safety inspection so now i can get it regesterd WooHoo.

Thanks for your help

Jamie

Author:  MrRocky [ Fri Feb 17, 2012 7:11 pm ]
Post subject:  Re: lj50 engine very smokey

winner

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