help!!! 2.5 TD head?

[MrMPuk]

Does it mention anything in the haynes manual about a further 90 degress after torquing?

[100ps_drw_hicube]

ye it says something about another 90 degrees i take it means turn bolt another 1/4 of a turn??

[Luke]

ye it says something about another 90 degrees i take it means turn bolt another 1/4 of a turn??

yep!!
did you do that?

[100ps_drw_hicube]

ye i went another 1/4 of a turn but talking to somone who used to be a mechanic he said it dont seem very tight for head bolts ? anyway the haynes manual says 52 lbft i will ring someone at fords today and see what they think

[MrMPuk]

This is what Ford says, the haynes manual is right, althought the torque setting is quite low the extra 90 degrees makes it quite tight.



Head bolts are 70Nm + 90 degrees.

[100ps_drw_hicube]

thanks for diagrams yep they are exactly the same as haynes manual got a new head gasket today and refitted head got everything back on execpt rocker cover have just got to check the valve clearances then we will see what happens in the morning to wet to stay out there any longer hopefully all will be well tommorow if not then no ideas yet again thanks everyone for your help

[MrMPuk]

You should have done the valve clearences before when you did the head, as you moved them when removing the rockers! Are you doing them hot or cold?

[MrMPuk]

Also another thing to check if it's still smoking as you fitted a new head, do you know what the enigne was like that the head came off of as it might be the valve stem oil seals!

[100ps_drw_hicube]

the haynes manuals says the same for hot or cold valve clearances.. the head was a brand new head which came from a local person who used to run a fleet of mk5 td's so it is definately the correct one!! wish i had left it alone but i couldnt put up with the blue smoke the stem seals had gone!! also my first post somone mentioned one of my probs could be that the rings had gone they say said to check i had to pour diesel into the bores and see what happens whats is meant to happen????

[MrMPuk]

Had the stem seals gone on your old head? Is that why you changed the head? Surely it would have been easlier just to change the seals?

When you say new head, had it been stored?

If you poor diesel in the bores and then leave it for a while and come back if the diesel is still at the same level then the rings are ok if it has dropped then the rings could be knacked.

[Luke]

i had to pour diesel into the bores and see what happens whats is meant to happen????

should drain evenly - not sure how long it should take - it will be quite a while - but be aware when doing this the diesel will drain into the oil - so remove that first then drain the diesel out of the sump - then put the oil back in!!

[100ps_drw_hicube]

i tried it when i done the head last week 2 inner cylinders took over 5 hours to drain through the 2 outer cylinders took about 4 hours to drain is this likely to be a problem?? i changed the oil as it was full of water

[MrMPuk]

No that sounds about right.

[Luke]

When you fitted the headgasket did you clean the block surface fully to make sure all trace of the old head gasket were gone

[100ps_drw_hicube]

ye it was pig to get the old off but i took my time and made sure it was spotlessly clean