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 Post subject: Blown head gasket, OMG
PostPosted: Sat Dec 24, 2005 12:25 am 
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1275cc
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Joined: Fri Oct 29, 2004 6:14 pm
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Location: A pub near Geelong
i'll let the pics speak for themselves. i was not going hardcore!!! i promise!

i ahve been driving really soft lately, as i ahve had no brakes.

Image
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PostPosted: Sat Dec 24, 2005 12:27 am 
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1360cc
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WOW!
Made a nice meal of that one :lol:

And how long were you driving on it while it was running on 3 cyls? :lol:


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PostPosted: Sat Dec 24, 2005 4:53 am 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
They don't make those copper gaskets like they used to. :x
ACL's 998 gasket is the best one about now for all smallbores. Has a 100,000 warranty too.:)
I'd deck the head while off, to ensure it's flat. Check the block also.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Sat Dec 24, 2005 5:25 am 
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848cc
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Something's badly wrong there for a gasket to fail like that - maybe incorrect head torque or studs stretching, warped head or block surface.

I only use the genuine Rover TAM2121B head gaskets on small-bores these days.

KC.


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PostPosted: Sat Dec 24, 2005 6:14 am 
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Location: near Baulkham Hills, NSW
ACL's CP250MT gasket is Aussie, maaaaate- similar construction design to the BK450 (1275)gasket but with a blue water seal bead round it and all the water holes.
VERY hard to blow.
GR uses them too. :wink:

Very easy to get here, unlike the one you quoted.

Available from Repco, AutoPro, AutoOne, AutoBarn, etc.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Thu Dec 29, 2005 7:40 pm 
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1275cc
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Joined: Fri Oct 29, 2004 6:14 pm
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Location: A pub near Geelong
young william wrote:
And how long were you driving on it while it was running on 3 cyls?


hehehhe :lol: i think it would ahve been 2 cyl's? it tried very hard to not run anymore for about 2kms (i was almost home) but when i stopped so did it and i could not get it to go again, about 2 kms from home :S walkable, but much easier to call dad for a tow home :twisted: :twisted: :twisted:

the doc wrote:
I'd deck the head while off, to ensure it's flat. Check the block also.


when we had the head off it appeared that it had been recntly machined, i ahve driven it 10,000 kms since july, but it still had all the markings from machining all over it! also all the valves were sitting just a little up out of their seats, indicating that port work has recently been done.

but we checked both head and block anyway, both were dead flat. when we put the shiny new gasket on we thoroughly sprayed it with mylomar (before we put it on :P:P:P) both sides and around every hole la bla bla. connected all thoe hoses up proper and set all the tappets to correct gap (0.012"). have driven it about 150 kms, need to check gaps and tighten down head!

Quote:
Something's badly wrong there for a gasket to fail like that


how about timing seriously bad and lots of bad stuff that happened which made the timing very very bad
but now its good :D

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