ubersonic Posted July 27, 2013 Share Posted July 27, 2013 Can anyone give me a ballpark estimate on how much it would/should cost to replace a blown head gasket on a UKDM Supra? The aren't really many specialist tuning garages in north Wales I don't think so my options are probably quite limited but the are a few "normal" garages that are very skilled mechanically so could probably do it. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted July 27, 2013 Share Posted July 27, 2013 From £1200 Whifbitz and From £2000 SRD Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 28, 2013 Share Posted July 28, 2013 Be VERY aware head gaskets usually blow for a reason, and if was overheating and the head is warped it's almost certainly scrap, as not only the head to block face warps, the whole head goes banana shaped in side view, meanining the cams are now expected to operate in journals that are no longer in line. It may also have gone soft if overheated, and needs hardness testing. Head gasket changes are not cheap, you need to be 100% sure it will fix things properly. I would be mid way, price wise on the above prices, assuming I can find time to do it. Quote Link to comment Share on other sites More sharing options...
ubersonic Posted July 28, 2013 Author Share Posted July 28, 2013 Damn, is that a case of it being impossible to tell until it gets to a garage or could I pull the head off on the driveway and use a laser level or something to check if its fubar? Quote Link to comment Share on other sites More sharing options...
Nikue Posted July 28, 2013 Share Posted July 28, 2013 This is quite popular at the moment http://www.steelseal.co.uk/ Quote Link to comment Share on other sites More sharing options...
Tsia Posted July 28, 2013 Share Posted July 28, 2013 This is quite popular at the moment http://www.steelseal.co.uk/ I'd trust that as much as I'd trust putting a bit of gaffa tape over a puncture to be honest o.o Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 28, 2013 Share Posted July 28, 2013 (edited) This is quite popular at the moment http://www.steelseal.co.uk/ Trepanning was a quite popular thing to do to heads at one time, too, and I recommend this product about as much. To check the head you need a good long engineer's straight edge, and a hardness tester. Straight edge about £150, hardness tester from £400 to £4000. I would get someone with the right gear to do this. Taking a TT head off on the driveway is not for the feint hearted. Edited July 28, 2013 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
Slutters Posted July 28, 2013 Share Posted July 28, 2013 Trepanning was quite poular at one time, too, and I recommend this product about as much. Lol! Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 28, 2013 Share Posted July 28, 2013 If you can get the head to a machine shop you could get them to pop it on a milling machine table and run a dti clock or verdict clock along its length and width. This would only take minutes to do and you'd probably get it done for a tenner This would tell you very accurately if the head is warped, i think 0.1 mm or 0.0039" is Toyotas guide figure for max warp Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 28, 2013 Share Posted July 28, 2013 Fixes cracked blocks ? they should call it Jesus juice Quote Link to comment Share on other sites More sharing options...
Nic Posted July 28, 2013 Share Posted July 28, 2013 Trepanning was a quite popular thing to do to heads at one time, too, and I recommend this product about as much. I had to look that up, how stupid am I? must have been that bang to the head. Quote Link to comment Share on other sites More sharing options...
Slutters Posted July 28, 2013 Share Posted July 28, 2013 I had to look that up, how stupid am I? must have been that bang to the head. Or drill.... Quote Link to comment Share on other sites More sharing options...
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