2 1/4 petrol rejecting oil out the top...?
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I was getting white smoke in the truck cab! Was on the CB to the other guys who were looking around but couldn't see smoke pouring out the back, so it seems it was being thrown out the top, heating up on the engine, turning to smoke and dispursing into the cab...
As the water in the rad was low too that would, to me, suggest the head gasket...?
dr pepper
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No clouds of blue smoke out the back is a good sign, maybe your not burning oil ie its not getting past the pistons.
The compression you had was hopeless, maybe the pressure of combustion is keeping the oil out of the chambers while its running, but blowing it out the filler and anywhere it can.
Just a theory.
The compression you had was hopeless, maybe the pressure of combustion is keeping the oil out of the chambers while its running, but blowing it out the filler and anywhere it can.
Just a theory.
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Well i assume i was doing the preasure testing correctly? Took all 4 spark plugs out, put the compression thing into one spark socket and turned engine over a few times, read reading. Unless i was meant to leave the other 3 sparks in place?
dr pepper
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Nope thats correct, as long as you used the starter, listed pressures are for doing the test with the starter.
If you hand cranked the engine then you get lower readings.
Anyways even if you hand cranked it, if you did do at the same speed each time you still got a good 30% diffo on one pot, so summats up.
If you hand cranked the engine then you get lower readings.
Anyways even if you hand cranked it, if you did do at the same speed each time you still got a good 30% diffo on one pot, so summats up.
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yeh did it on the starter, well, heads coming off tomorrow so i shall see 
How do i know if i have 1:7 or 1:8 compression ratio? (for sparks) my vehicle age is at the change over period
How do i know if i have 1:7 or 1:8 compression ratio? (for sparks) my vehicle age is at the change over period
yeh did it on the starter, well, heads coming off tomorrow so i shall see
How do i know if i have 1:7 or 1:8 compression ratio? (for sparks) my vehicle age is at the change over period
easyiest way is to take out a spark plug and get the number off it,check which head it fits online
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well i have a turner head fitted, the spark plugs i replaced myself not that long ago, i just guessed i think then... :/ its been working ok on them though so guess i'll jut get the same - but they are so black and oily i think new ones are in order (given how cheap they are)
dr pepper
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I never tried to get one for a landy, but if you spend a little extra get a copper gasket.
Another usefull thing is that you can re-use them, so you can tek the head off, de-cack the engine and re-use it.
Another usefull thing is that you can re-use them, so you can tek the head off, de-cack the engine and re-use it.
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i can't believe you fitted a !hitpart gasket with that nice head !
i know live and learnGot a nice expensive one now to go on it... though not copper - i had to make do with what i could buy on Friday
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What are people's views on using gasket sealants on head gaskets? Speedy responses really appreciated (head off and about to put new gasket in...
brnocz
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head gaskets dont need sealant unless you have a fault and then it would only be a tempory job as it would not last due to the presure from the pistons , i always use a smearing of oil, 1 on the block and 1 on the head, this then bakes hard making an air tight seal, using gasket sealant will cause head gasket fail as you wouldnt get an even coating.
dr pepper
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As above.
The metal bits around the bores are a critical thickness, besides screwing up the eveness with sealant you'd be affecting the thickness too.
The metal bits around the bores are a critical thickness, besides screwing up the eveness with sealant you'd be affecting the thickness too.
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Cheers guys, all fitted and fixed on Monday morning working perfectly now. thanks for your help
clivees
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This is a 7:1 head and the 8:1 head has a tab in the casting here.yeh did it on the starter, well, heads coming off tomorrow so i shall see
How do i know if i have 1:7 or 1:8 compression ratio? (for sparks) my vehicle age is at the change over period
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Thank you, so i have a 7:1 head then... except, i replaced the head, but obviously the rocker house cover remains the same... so... if i understand correctly, it doesn't give me a deffinite answer?
Although it runs fine currently (well as fine as a 46 year old engine can) so i expect i have the right sparks
