when i blew a head gasket i put cooper s double valve springs in also you could put unleaded valve seats in you head and maybe some head work too
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| Blown Head Gasket - Under Repair https://ausmini.com/forums/viewtopic.php?f=5&t=5831 |
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| Author: | Maxi23 [ Sat Mar 26, 2005 5:47 pm ] |
| Post subject: | Blown Head Gasket - Under Repair |
Blew my head gasket already....bit crap. So... Im all set to replace it, but I was thinking while its apart what else could i do to increase performance ? Any ideas people ? |
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| Author: | benjamin [ Sat Mar 26, 2005 5:53 pm ] |
| Post subject: | |
when i blew a head gasket i put cooper s double valve springs in also you could put unleaded valve seats in you head and maybe some head work too
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| Author: | Mini Mad [ Sat Mar 26, 2005 6:03 pm ] |
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I'm assuming it's a small bore block? Were you using a copper gasket? the new ones are NFG... Go the ACL Gasket, Part #CP250MT. Available from Repco etc. While the head is off you can do a number of things, port the head, fit double valve springs, bigger inlet valves etc.. Find out what type of head you have too. |
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| Author: | TheMiniMan [ Sun Mar 27, 2005 9:07 pm ] |
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If it`s not valve bouncing the don`t fit double valve springs,,,the extra load only slows the things down double valve springs are fitted to a higher reving engine to help stop valve bounce or valve "float",,,that`s all,,,by fitting double valve springs to an "otherwise" STD engine will only slow the engine down simple as that!!!!!!!!!!!!!! Maybe fit slightly larger inlet valves & open the holes up to suit,,,& if you want to spend some more money & fit unleaded valve seats then do so too, good for longetivity |
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| Author: | Maxi23 [ Sun Mar 27, 2005 11:09 pm ] |
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Whats the average going price for an unleaded conversion ? |
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| Author: | benjamin [ Sun Mar 27, 2005 11:13 pm ] |
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i cant realy remember but i think it was $150 to fit hardend valve seats |
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| Author: | Maxi23 [ Sun Mar 27, 2005 11:16 pm ] |
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Im am under the impression I can replace the head with one that will give me a performance boost ? Is this correct ? if so, what could I expect to get for say $500 just on the head itself ? |
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| Author: | gafmo [ Mon Mar 28, 2005 7:59 am ] |
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If you are running a 998 or 1098 you can put a 925 or 940 head...
940 head is a bit more work on the Block..(Valvue clearance) if you can find the 925 head you are a lucky man..I'm still looking |
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| Author: | drmini in aust [ Mon Mar 28, 2005 8:15 am ] |
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gafmo wrote: If you are running a 998 or 1098 you can put a 925 or 940 head...
940 head is a bit more work on the Block..(Valvue clearance) if you can find the 925 head you are a lucky man..I'm still looking Gaf, you dyslexic are... it's a 295 head, not 925..
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| Author: | Maxi23 [ Mon Mar 28, 2005 10:35 am ] |
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what would the head off a Mk2 Cooper S most likely be ? |
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| Author: | Maxi23 [ Mon Mar 28, 2005 3:38 pm ] |
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Im running a 12G202 head |
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| Author: | gafmo [ Mon Mar 28, 2005 4:30 pm ] |
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drmini in aust wrote: gafmo wrote: If you are running a 998 or 1098 you can put a 925 or 940 head... 940 head is a bit more work on the Block..(Valvue clearance) if you can find the 925 head you are a lucky man..I'm still looking Gaf, you dyslexic are... it's a 295 head, not 925.. I do that all the Time 
940 is your best bet..but you will need to pocket the block..so the Valvue's don't hit the block. 202 heads can be opened up better than a 295 by GR in Sydney Regardings to heads as per factory http://drcwww.kub.nl/~bogaard/heads.htm |
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| Author: | Maxi23 [ Mon Mar 28, 2005 4:32 pm ] |
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UPDATE: Ok, i have to bite the bullet and get a full engine + gearbox reco. I am after the name + phone numbers of all good mini specialists in Sydney + Newcastle who can do what I am after. I will remove engine myself + install myself. I am only after reconditioning of engine, and maybe some performance parts. Any help will be appreciated!! Thanx people!! |
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| Author: | gafmo [ Mon Mar 28, 2005 4:50 pm ] |
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GR Greame Russell 113 North Rocks Rd (02) 9630 2195 Mini Classic 2/27 Hope St Ermington (02) 987 47211 Mini Spare Centre 80 Gibson Ave Padston (02) 9774 3388 Karcraft 9 Egerton St Silverwater (02) 97 9944 (for Parts) |
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| Author: | Maxi23 [ Mon Mar 28, 2005 5:01 pm ] |
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Thankyou for that, shall give them all a ring 2moro. Is anyone able to tell me if I will get change out of $2000 for a rebuild of an 1100 engine + gearbox ? Or should I make my budget a tad bigger ? |
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