Eberspacher

Lance

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I have an eberspacher fitted which I believe to be of 1982 vintage (orange & large!)

On turning on, the unit fails to start first time & when it does start it pours out white smoke constantly.

Any ideas?

Thanks

lance
 

sailorman

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1/ the exhaust & air intake MUST be the same length
2/ the fuel pump should be "set-up" for the heater to get the emissions correct

not really a direct help but may be a starting point
 

ShipsWoofy

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White smoke sounds like steam, it could be water in your eber tank, hence also crappy starting.

Try running with fresh diesel and see if it cures it. Could also water be sitting in your exhaust run, even rain water? It could be that it wont start until it manages to blow out the residual water and then the first minute the hot gases are drying the exhaust.

These are guesses, but might be worth a try before starting to strip your installation.
 

fivebucksa

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Mine is circa 1988, also on first start up of the season gives out quite a lot of grey/ black smoke, cuts out maybe twice then works fine. My thinking is it works, there are lots of threads on the site that give good advice, IE, clean glow plug, battery must be fully charged, clean fuel, control box contacts not corroded, but it aint broke, so I am not going to tinker.
 

starboard

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Had the same problem with my new model last year.I changed the glo pin and all now well. The white smoke is the injected fuel not getting enough heat to ignite proparly and there fore coming out as thick white smoke. Suggest you take out your glow-plug as on older model and test, these require a fair amount of volts to produce sufficient heat. How is the voltage at the plug, check supply wiring or try with main engine running in case batteries are down.

Good luck

Paul.
 

VicMallows

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Also check any in-line fuse; these seem particularly prone to becoming high resistance and causing voltage drop. Try starting it with the engine running/charging. If it starts OK its definately the glowplug not getting hot enough when battery not on charge. Many people find that older heaters will ONLY start with the engine charging, and just accept it.

Vic
 

Heckler

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Re: Eberspacher, the definitive answer

the fuel is pumped by a simple solenoid pump, i.e power on / off (electronically) plunger moves up and down pushes fuel through. there isnt an injector in them, the fuel goes thru a pipe in the older models and internal channel in the newer ones. it ends in a hole that you can see when you take out the glo plug. the gauze cylinder that you can see (it surrounds the glow plug) when you remove the glo plug is the "wick" that the fuel migrates through, the glo plug heats this and this is where it vapourizes and ignites. with time the gauze gets eaten away and the vapourisation becomes less efficient hence the white unburnt fuel exhaust, as the machine heats up and becomes self igniting the gauze is less critical and the exhaust clears. talk about equal length exhausts & inlets is not relevant, the only critical length is the suction pipe on the pump due purely to the non efficiencies of the plunger pump.
stu
 

sailorman

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Re: Eberspacher, the definitive answer

[talk about equal length exhausts & inlets is not relevant, ]

read the book, guess wot it states!!!!!!!!!!!
it may not be relevent to the white smoke but thats wot the book says
 

robind

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Try attaching a small supply of Parafin and running it on it for a while to clean it out? it may help.
E&OE
Rob
 

Lance

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Thanks for all the replies - great advice!
I tracked down the source of the problem and as it is one I have not seen mentioned before.

The problem was with the flexible combustion air intake pipe. On inspection I found that part of the insulation in the pipe had come away and caused a resriction in the pipe.

The offending obstruction was removed and after a couple of minutes running the smoke cleared and all was well.

Thanks again.
 

Heckler

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Re: Eberspacher, the definitive answer

lovely this forum innit, have read the book, question was asked about solving a prob, my answer solves the prob, lengths of pipe irrelevant to prob. and by the way there is no adjustment on the pump, it pumps (clicks) or it doesnt but then theres always one isnt there.
stu
 

sailorman

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Re: Eberspacher, the definitive answer

it does appear that there was a restriction in the inlet hose . this would give the same effect as length of hose being different.
the pumps are adlustable by the service centres as they have to be set-up for Co2 levels.
 
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