Cossie fooked AGAIN. . . . . . . .advice please!
11-11-2006, 06:28 PM
#1
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Cossie fooked AGAIN. . . . . . . .advice please!
Right I was doing 90 ish the other day have been giving it a lil bit of stick here and there 
and when after booting it about and driving it home I had what felt like a misfire, nursed it home and left it till the morning
Next day changed entire ignition system but still had (what i thought was) a misfire! Done a compression test and ZERO on No.4
Now have been told ive prob done a valve as im losing complete compression (im getting no smoke out of the exhaust) so im assuming rings/pistons/bores/block is all ok?
What im asking is. . . .. . is it worth wipping head off and hoping just replace valves and a bit of a refurb or am I guna have bigger probs...
Dunno if this helps diagnosing my prob but when running I have a noise like a very slight exhaust blow (but no exhaust blow!) so I think compression is leaking past valves straight into exhaust manifold
and a very slight knocking noise but I think the knocking nosie is due to it ruinning purely on three and totally outta balance.
Any advice greatfully apprciated guys
and when after booting it about and driving it home I had what felt like a misfire, nursed it home and left it till the morning
Next day changed entire ignition system but still had (what i thought was) a misfire! Done a compression test and ZERO on No.4
Now have been told ive prob done a valve as im losing complete compression (im getting no smoke out of the exhaust) so im assuming rings/pistons/bores/block is all ok?
What im asking is. . . .. . is it worth wipping head off and hoping just replace valves and a bit of a refurb or am I guna have bigger probs...
Dunno if this helps diagnosing my prob but when running I have a noise like a very slight exhaust blow (but no exhaust blow!) so I think compression is leaking past valves straight into exhaust manifold
and a very slight knocking noise but I think the knocking nosie is due to it ruinning purely on three and totally outta balance.Any advice greatfully apprciated guys
already had rocker cover off
12-11-2006, 01:45 AM
#7
Sounds like my situation - though I blew a hole in no 2 piston and blew my dipstick out behind the battery
Wasn't doing a poxy 90 at the time though - you need to drive faster!!!
As said above, get the head out and take a looky! Get the pics on here too!!!
Si
Wasn't doing a poxy 90 at the time though - you need to drive faster!!!
As said above, get the head out and take a looky! Get the pics on here too!!!
Si
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12-11-2006, 08:12 AM
#8
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Sib - Did yours smoke like mad when you blew a hole in ya piston? because mine still runs roughly alright and doesnt smoke and isnt breathing.
Next time ill be doing 150 then and do it proper
and doesnt smoke and isnt breathing.Next time ill be doing 150 then and do it proper
12-11-2006, 02:31 PM
#9
Originally Posted by PeterLucas
Sib - Did yours smoke like mad when you blew a hole in ya piston? because mine still runs roughly alright and doesnt smoke and isnt breathing.
Next time ill be doing 150 then and do it proper
and doesnt smoke and isnt breathing.Next time ill be doing 150 then and do it proper
Ages ago I cracked my old head on the Cossie - that lead to no compression on no 3, the car still ran (badly) but didn't smoke - it just kept pressuring the header tank under any load...
If you can the head off you'll see whatever the problem is and it will stop the guesswork... bit of a pain I know, but it's prob your first step towards fixing it.
Keep the post updated!
Si
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