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Yeah, I'm at a loss what to think right now.
It's back together and I started it up but it's not running right now at all.
Perhaps a piston ring has let fly.
I haven't been able to repeat the noise it made when it let go.
Oil pressure is good.
Something broke and I haven't been able to figure out what yet.
Pete
Pete .... If one cylinder has low comp and the valves are working ok it's going to be, maybe head gasket or piston there's not to many other places it can be leaking from. ......... Geoff
Sump off now and it all looks OK from the underside.
There's nothing in the motor to explain the noises I heard.
Perhaps the noises and the low comp are unelated either way I'm going to have to pull more stuff out.
Sump contained a few little pieces of brittle plastic about 2mm square, could be bit of dipstick tube or something similar.
Of greater concern is the brass coloured silt in the sump.
Pete
OK rattle is clutch related, pressing clutch in and out makes noise come and go.
Compression is unrelated but still needs fixing of course.
Pete
Box is out and even beofore I've got the clutch apart I've found bits of the pressure plate in the bell housing.
Pics later.
Pete
It's official, I've blown my first clutch!
One of the spring plates has come off the back.
Bit of a relief really, to have found the source of the noise.
Now to put it all back together.
Pete.
Box is back in re-attaching stuff now.
I fitted the Bildon / Spec clutch - stuff it - you don't win races with your best parts on the shelf.
http://www.specclutch.com/products . Stage 3 - 6 pucks and springs.
Pete
woah! broken clutch! you're really moving up in the power stakes now aren't you Pete!
does the 4th cylinder even fire with such low compression?
Seems to, but what I'm wondering now is was it low before the Dyno run?Quote:
Originally Posted by Jarred
If it was low before testing, what's it going to be when I fix it?
I'll have to pull the head to find out what the problem is, need to make a few phone calls today and ask a few experts for opinions.
Plan is to pull the head and pop the old one back on there just to retest the compression. That should tell me for sure if it's in the head or piston areas.
If the head's off for repair I might as well that cam tunnel rebored and the cam refaced as we know it works well now.
If it's rings then I guess I'll do the big end bearings just for fun while it's out.
Only bright side to this I suppose is that I blew the clutch turning into my own street and not turn 4 at Phillip Island.
Pete
Clutch carnage.
This was a 16v pressure plate too, should have been up to the task.
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