landowner

landowner

Pensioner Pete
Full Member
Got the 300 started no problem but it is missing and smoking.

No smoke at all on idle

Blue smoke and misfiring when revved.

Carbon build up on two of the injector tips.

could this be a cracked head do you think, the head gasket has been done a few thousand miles ago but the engine has been in a shed for 12 months on a trolley.

Cracked head or head gasket or worse.??
What do you think.:)
 
can it be driven? stuck rings give similar compression issues etc, just a thought
 
fanatic said:
can it be driven? stuck rings give similar compression issues etc, just a thought
Click to expand...

Did consider stuck rings. no decision yet on that.

cant drive it at the mo no steering box or front wheels on it :eek:

ticks over all day with very clean exhaust, no bubbles in header tank, no water in oil, no oil in water, hesitates when given juice and slight miss fire .
 
compression check if you have access to diesel compression test

fuel pump timing as well possible
 
fanatic said:
compression check if you have access to diesel compression test

fuel pump timing as well possible
Click to expand...

If fuel pump timing not spot on then its only a midges out as the drill bit was a loose fit in the pump but only by a bit.
Would this cause smoke and miss fire?

The engine was running spot on when I bought it with no smoke from cold and revving freely.
It may have gotten frozen last winter but very little water in it.

Any tips on freeing up rings?

New oil and running it should do the trick I would have thought.
 
diesels dont want running in ,hard work is what they need ,misfire could be poorly injector or 2 ,remove and refasten out side of engine crank engine check spray pattern dont get any part of you near sprayed fuel
 
jamesmartin said:
diesels dont want running in ,hard work is what they need ,misfire could be poorly injector or 2 ,remove and refasten out side of engine crank engine check spray pattern dont get any part of you near sprayed fuel
Click to expand...


I'll check injectors tomorrow but I'm thinking head may be cracked as apparently it is a fault with the 300.

I'll take head off next week if all else fails and put a new one on it, can get one pretty cheap so not a problem.:)
 
landowner said:
If fuel pump timing not spot on then its only a midges out as the drill bit was a loose fit in the pump but only by a bit.
Would this cause smoke and miss fire?

The engine was running spot on when I bought it with no smoke from cold and revving freely.
It may have gotten frozen last winter but very little water in it.

Any tips on freeing up rings?

New oil and running it should do the trick I would have thought.
Click to expand...

I/ve used an lt77 oil pipe and a drill bit inside on a 300tdi at a push-as nothing else available at someone's house.
 
not really a fault quite rare and normally associated with water loss not misfire ,blown head gasket gives misfire especially between 2 cylinders but would show on idle as well injectors are 2 stage so may be right on idle not on running
 
I'd be tempted to recheck timing with tight fitting pin and check injectors before tearing it apart. I also find it odd it ran fine prior to laying up-can you borrow a Diesel compression tester?
 
jamesmartin said:
not really a fault quite rare and normally associated with water loss not misfire ,blown head gasket gives misfire especially between 2 cylinders but would show on idle as well injectors are 2 stage so may be right on idle not on running
Click to expand...

Makes sense that:)

I'll test injectors tomorrow, either way its goin to be expensive methinks:rolleyes:
 
jamesmartin said:
if it is might be able to find good used ones
Click to expand...


Hope its head be honest as I can get one for almost nothing as it will be bought for me. dont ask :)
On a budget for other stuff, bits an bobs etc so get parts week by week as I can afford it...on a pension now you know an it dont go far.:eek::D
 
Hi, i would agree with james here ! it sounds like injectors or pump timing to me.
If there is a miss fire from compresion problems it would be there all the time not just at reving, blue smoke could indicate injector problem or miss timed injector pump.
 
Hallbeckengineering said:
Hi, i would agree with james here ! it sounds like injectors or pump timing to me.
If there is a miss fire from compresion problems it would be there all the time not just at reving, blue smoke could indicate injector problem or miss timed injector pump.
Click to expand...

Ta, I'll check pump timing again on Monday as it wasn't me who put the belt on this time.:)

Seem to have oil in Nos three and four cylinders, blowing out when turned over with no injectors in? Maybe I imagined it but seemed like an oily mist coming out the injector hole?
Am I right in thinking that I can check pump timing through the inspection flap with a drill bit in the flywheel and one in the pump ?
 
Might just need a good run as it's been sitting for a year?
If it run perfect before that is?
Give it a full service and see how that goes?
 
sible88 said:
Might just need a good run as it's been sitting for a year?
If it run perfect before that is?
Give it a full service and see how that goes?
Click to expand...

I wouldn't put an engine in and not flush it out and change the oil and filters, new cam belt, water pump, thermostat and in this case 'P' gasket as well just so it is done.

There's carbon on two of the injector tips, the other two are not bad, it has a new turbo and the intercooler has been flushed out so I'm thinkin maybe head gasket again.:)
 
Hi, not sure if this is the best place to write it as only just joined but I have recently bought a 90 with a 300tdi, it running with reduced power slight black smoke, no whistle from the turbo, turbo fin is rotating freely?? Sounds like an old transit engine, any ideas what this could be??
 
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