Theres life in the old dog yet

latest update,

took the head off today - I think the photos are fairly obvious

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I think I missed a bit of debris round the base of the stud prior to putting the new head gasket on - allowing a path between the cooling and cylinder 2 (and possibly a bit to cylinder 1) the rusty track is a dead give away

I also took the opportunity to check the fuel pump timing while the head was off.

for my pump the injection point on cylinder 1 is 2.75mm below top dead centre to get the timing marks on the fuel pump to line up. The pump was actually injecting 4.5 - 5.0 mm before top dead centre (too early) so I have adjusted that back within spec as well. Im not sure what effect injecting too soon has but putting it right can only improve things

The plan now is to give the block and head faces a bloody good clean, get a new head gasket and put it all back together again


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I'd pull all the studs too and clean them up seperately Lee. Be careful with that rusty one though, don't snap it!

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I am not a person, I am a number, 395 actually......Be seeing you!
If I told you I was a pathological liar, would you believe me?
 
Did you have the head crack tested when you rebuilt the engine? If not it would be a good idea to have it done now.;)

Bloody Commer`s!
 
I can't believe it, after so much work. Fingers crossed the new gasket will sort it. So much hard work and frustration has to pay off soon.

I just need a good rootes...
 
no cracks in the head, none in the top of the block - however there is some small pitting in places that I might need to address - mainly around the openings on the waterways

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Im toying with the idea of using a thin smear of Rocol Foliac manganese when re-assembling

we use it at work on pressure systems and it will seal up to 600c and 193 bar!

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quote:
Originally posted by Navyreg1970

Im toying with the idea of using a thin smear of Rocol Foliac manganese when re-assembling

we use it at work on pressure systems and it will seal up to 600c and 193 bar!

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600c wont be no good near combustion chambers as it can go up alot higher than that. As diesel ignites under pressure i would imagine its higher than 193 bar to on full chat;)




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A commer with boost will be appering on a screen near you soon!
 
I thought the perkins 4108 had a fairly low temp combustion, much lower than a 1725 petrol - and 193 bar is over 2800 PSI, I cant see the old girl pushing out more than that

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I dont think it would be a good idea to use any sealant on the gasket, it never had any when fitted at the factory and it is possible that it may react with the gasket and cause early failure! if the pitting is only very minor the gasket will cope with it just make sure that its all spotlessly clean when reassembling and its torqued in the correct order as per the manual.
Just another thought, did you have the head and block skimmed when you did the rebuild?
Good luck this time;)

Bloody Commer`s!
 
the head was checked for flatness - but the block is still in situ, I dont have the facilities to lift it

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The engine went back together this morning ( I torqued the head a few nights back and re-checked on a daily basis just in case )

Gave the engine its first run after bleeding the fuel system - It sounded a little rough and all of a sudden decided it wanted to go to max revs

lots of head scratching etc I thought maybe it needed bleeding again.

and thats where it all went wrong..........

It appears that when opening the bleed screw on the anti-stall device on the fuel pump when initially priming, the actual anti stall screw bolt moved and not the screw It allowed fuel to leak out so I hadnt realised the error at first. Upon realising what was up I put a ring spanner on the nut to unscrew the bleed screw and hey presto it sheared straight off - rats arses!

so there I was sat in the garden with a cordless drill trying to drill the sheared screw when once again - hey presto I slipped and put the drill straight through my finger.

So now I have to try and source a new bit or get the worlds smallest easy outs - the bleed screw is only about 3-4mm dia

the saga continues

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Well either you or the dog is jinxed :(
I have never known anyone have such bad luck as you have with that van, if could go wrong for you it has!
Im gutted for you mate :(

Bloody Commer`s!
 
quote:
Originally posted by Navyreg1970

I will not be beaten!

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Drilled full of holes but not beaten;)

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How refreshing
 
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