325i headgasket,any usual problems i should look for - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 06-24-2014, 02:19 AM
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Post 325i headgasket,any usual problems i should look for

Hi guys,
I have an 1987 325i coupe which i had on the road a few years ago,up until I realised the headgasket had gone! This was after replacing heater matrix and heater control valve which cost 150 for genuine BMW matrix! anyway since then it has sat in drive and now and again i fire it up and listen to the excellent exhaust note it gives through stainless system and tell myself i must do headgasket.
Well now the time has come and i'm going to do it!!! hooray!!!
I am after some advice on what to look out for when changing headgasket?
I am qualified mechanic and changing headgasket i dont have a problem with its the catch you out issues & usual cause of headgasket failure on 6cyl engine. ???
example= Head warp/twist how many thou tolerance is allowed across cylinder head face?
are they prone to corrosionat any particular point?
Do they crack cylinder head internally? and if so is it normally repairable? Is it worth having it pressure tested and repaired???
Any feedback would be much appreciated.
Oh almost forgot! I have heard the the headgaskets come in different thicknesses? Is this correct or was it just a rare case i heard about?
Also any advise on best place to purchase headgasket set with headbolts i would get from BMW normally but if there is a better option or same just cheaper i'm all ears. Any help,tips,pointers,etc would be grateful.

Stewart (Fridge & car mechanic in Essex)
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