Vehicle & Technical > Discovery

Have I done the head gasket

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Range Rover Blues:
The smoke screw is just part of the "balancing act" of setting up the fuel pump, it stops the pump over fueling too early or at part throttle, it won't cure the white smoke.

If it smell acrid then it could be caused by timing, ours does it when the fuel filter is blocked (by deposits in some bioderv I put in :evil:), if they are more whispey they could be steam, but then it's cold and humid at the moment so it's going to make condensation when it's cold.

clover:
Hi

It does seem to be getting better the more I use it.

I got a puff of smoke last night as I pulled out on a round about but nothing today.

I have changed the oil and filter and put a new fuel filter on it.

I think the injectors were full of oil and its taken a bit of time for them to clear out.

Been told that crap in the injectors can cause them to not spray properly and when they do this it can result in white smoke.

Dunno if that's true or not but I've put a load of injector cleaner in the tank.

It certainly seems much better which is good news. I am feeling a bit more confident that maybe somehow or other I have sorted the problem. Maybe it was the head gasket after all...

Ja1983:
do you use veg oil or bio-derv at all? mine currently on 60:40 bioderv:veg, and with the recent weather its not a happy bunny..

this morning gave a reluctant and spluttery start, with lightblue/white clouds until i got onto the main road (but stunk of deep fat fryer, so must just be the veg oil gellifying in the lines)

also supermarket fuel isnt the best quality, and if you`ve run it low on fuel, you may well have slurped up some scum from the bottom of the tank..  my fourtrak needed new fuel lines after captain save-a-quid here decided to see how far below the red the needle would go... :dance:

keep an eye on it but budget for a new/rebuild engine.. never lost.

also if there was as you say a lot of oil in the pot, it will still be on its way through... exhaust for example will take a while to burn out any deposits.

clover:
Nope don't do bio-derv...

As you say I am hoping that mostly its crap in the system working its way out. Could also be some dirty fuel. I am well know for bending the needle round the empty bar. However I thought that was what the fuel filter was for :-)

Ja1983:
in theory it is, but what do you have before it gets to the fuel filter....?

...yep, long length of narrow pipe!
could be worth cleaning the sedimeter (good luck!) as who knows what it has been expected to run on over the years :wink:

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