Head Gaskget K series

Jan 21, 2004 3 Replies

Has any body out there got the proper tightening figures for the cylinder head I have got the Haynes Manual but am unsure of the validity of the instructions also why the need to change the bolts, in the haynes manual it says to screw the bolts in to the block finger tight (with out the head on ) and measure between the block and the underneath of the head it says that if the measurement is under 97mm then the bolts are ok to re-use, if they are over 97mm to replace them I did this and to my amazement the measurement was about 58mm. I don't think the bolts are going to stretch 40 mm.So any info will be appreciated


Graham,

According to my official Rover workshop manual: Test with cylinder head removed Screw each bolt into place finger tight. Distance from cylinder block face to under bolt head must be less than 97mm.

OR Test with oil rail removed Screw each bolt into oil rail until finger tight. If full length of thread is engaged, bolt may be re-used. If full length of thread not engaged, measure distance from top face of oil rail to under bolt head. This must be less than 378mm.

Hope this helps - I can scan the page and email it if this doesn't make sense....

Ade

Speaking of the manual - if anyone wants it, I'm open to offers as it doesn't cover my 600 (bought it when I had a 420 which Haynes doesn't do a manual for). It's in West London (v.heavy to post - about 3" thick). It originally cost me about £35 if I recall correctly.....

This technique for measuring the bolts is to determine if the threaded part of the bolt has stretched - if it has, the bolt will foul at the stretched thread, if not it will keep going until it bottoms out on something. The bolt will not stretch by anything like 40mm (hopefully!) Bit obscure, but if the critical factor was the amount of stretch, the obvious method of just measuring the length of the bolt would be more sensible. AFAIK the Haynes figures for tightening the bolts are correct, in any case my car was done to these settings with no ill effect to date. Hope this helps Bob

Bob

Thank You Adrian I would be obliged if you could scan the pages also is the tightening procedure the same in the proper manual if you could scan that as well I will be well pleased

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