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[PhilRich]

cheers andy b

now i feel even more silly!!!!!! after wot you put i reread and guess what

yep you guest it 134mm !!!!!! DOH!!!!!!

[/highlight]







GAWD ALMIGHTY!!!!! I am SOooo relieved Griff  I thought I had given you duff info for a while there!
If your engine didn't overheat spectacularly or for any length of time then the chances of the head being warped are very minimal imho! Try using a steel straight edge on the mating surface  in different places & shine a bright torch behind it to check for gaps  Also, only use a top quality head gasket, not something cheap! I hope it all goes straightforward from now on mate, good luck!

[tidla]

check with a quality ruler as said should save a few quid.

the only time this method did not work was on the rover 16v heads.

but thats a different engine with a very different head gasket.

just the fact that some mentioned copper grease on the bolts and it being the centre two cylinders which (get most of the heat) have blown which might indicate possible previous major overheat.

tbh. the only cracked head to be returned from the engineers as scrap had clear small cracks between the valves in the head.

[griff2494]

just managed to get hold of another copy of tis2000(this ones complete lol)

found the part that posted for me yesterday ,ref thickness of head (once again thanks mate :-) )

anyway ive decided im prob not going to skim it ,but i found this on tis2000 on the same page as thickness of head,am i reading it right??


or is that because they want your money!!! lol

[PhilRich]

Just come upon this post Griff so apologies for a late reply
I was in the act of typing a reply yesterday about this, but then you posted to say you had misread the vernier scale & the measurement was ok! Yes, Vauxhall say you can't skim the head on omegas!!! but as anyone who has ever had to do it will tell you, it doesn't hold water (no pun intended! )
 Most skims, even on a warped head will only need a few thou of an inch removing so no problems inherent there, but it would become a problem if the head had been skimmed previously & either too much had been removed then or the new skim combined with the last one meant too much metal being removed.

[griff2494]

quick update, head gasket kit finaly arrived late yest afternoon!!!!!

so last night i fitted the new oil stem seals,reground the valves back in then refitted the valves

refitting the valves was a pain in the arse !! getting the collets in was a bit tricky as every item i had that should help me to get the collets into the right postion seemed to be magnetic!! so of course kept moving them


anyway got them all in and right it just took me about a hour longer to do than i thought it would

[djac]

quick update, head gasket kit finaly arrived late yest afternoon!!!!!

so last night i fitted the new oil stem seals,reground the valves back in then refitted the valves

refitting the valves was a pain in the arse !! getting the collets in was a bit tricky as every item i had that should help me to get the collets into the right postion seemed to be magnetic!! so of course kept moving them

anyway got them all in and right it just took me about a hour longer to do than i thought it would

It's a bit late to help you on this, but might be useful for future reference - a dab of grease on either the inner surface of the collet or the collet groove on the valve stem would help 'stick' them in place. 

[Gaffers]

quick update, head gasket kit finaly arrived late yest afternoon!!!!!

so last night i fitted the new oil stem seals,reground the valves back in then refitted the valves

refitting the valves was a pain in the arse !! getting the collets in was a bit tricky as every item i had that should help me to get the collets into the right postion seemed to be magnetic!! so of course kept moving them

anyway got them all in and right it just took me about a hour longer to do than i thought it would

It's a bit late to help you on this, but might be useful for future reference - a dab of grease on either the inner surface of the collet or the collet groove on the valve stem would help 'stick' them in place. 

You beat me to it 

[griff2494]

BAD BAD BAD BAD DAY!!!!!!!
IM STARTING TO HATE MY OMEGA !!!!! (sure i will love her once sorted)

right went out at lunch time with a list i wanted to do today before dark

1. fit and tighten head
2. refit cams and rocker cover
3. refit inlet
4. refit exhaust manifold
and if i got time refit the cam belt (well if my cam tool turns up today!!!!)

BUT when i got out there i popped the bonnet and :-( :-(
its been raining here now for 3 days and some how water from the scuttle has dripped onto the block and totaly filled up pot 3&4 with water!!! and my nioce clean block was all rusty again :-( (at least seeing the water was just sat in the pots i no my rings must be doing there job lol)


anyway sorted that and on with the head refitting
started to tighten in the order stated on tis2000 and to the settings 25nm +90deg+90deg+90deg+15deg

anyway when i got to the last tightening of 15deg :-( the worst thing ever happened

first !!!!my hex socket snapped!!!! (halfords pro range)
second !!!!! THE GOOD DAME FUC>ING BOLT SNAPPED!!!!!!

brand new bolts and there shit!!!!!!!!

so after 2hrs of drilling,3 snapped drill bits (which when snapped shot off deep in the engine !!!!!!(got them back when bolt was out)
i finaly managed to get the bolt out!!!!!(luckly ive got a very good bolt excracter)but ive had to use one of the old bolts in its place :-( (i no there strech bolts but they measured the same still so hopefully just the one will be ok :-( )

anyway got that finished but getting dark so i just refitted the cams ,but there to round about the correct timming postion ready for the next stage

quick question,seeing the oil thats in the car is no good am i best to drop that out,put some cheap shit in and let it run for a few mins till warm ,drop that out then refill with good stuff

will that get all the crap out? or would i be better using some kind of engine flush?

[Abiton]

Tell me that you made sure the headbolt tapped holes in the block were all checked for absence of water before you reassembled...?

[griff2494]

yep all clear and dry :-) before i started !(got cotton buds in there and rag
i assummed if they where full of water they would pure out during tighting and wet/break the new gasket

[Jimbob]

Whose bolts were they?  I know Mark has had some snap before, and likes Trecchi's

Any water and they hydrolock on the way in and wont seat.

[griff2494]

 i did not no that :-(thank god i removed it all before starting!!!! i thought if not it would break the new gasket

but luckly im ok seeing they where dry,esp after today as its def been a bad day working on the car

the bolts where from a ebay shop called THE GASKET SHOP

[griff2494]

well hello all

not been on since i started to reasemble the engine,i had just bolted the head down when i got told i was going to the uk on exercise for 5 weeks :-( (i got told at 8pm one night and had to go next day at 10am:-( )

anyway im back now:-) went in the garage today and was :-( i had forgot where all the parts fitted lol (knew i should have took pics lol)

anyway ive done the timming (spot on :-) )
got all the inlet side put back together and all bolted up but i have one elec connecter i cant seem to find a home for :-(

its running off the loom just at the start of where the injectors start

theres three plugs,one goes into the air intake sensor,1 into the what i think is the water level sensor in the header tank

BUT WHERE DOES THE OTHER ONE FIT??

ive not checked but should it maybe plug into the alternater?

please help

[RobG]

TPS on throttle body?? :-/ Any pics?

[griff2494]

hi again sorry didnt take any pics :-(
if needed i will get some tommorrow

ive plugged the tb plug in (big square one)

the plug i cant seem to find a home for only has 2pins like the one that plugs into the sensor under the header tank