Author Topic: No life in the old girl after I've refitted the head  (Read 3709 times)

Offline rubjonny

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Re: No life in the old girl after I've refitted the head
« Reply #30 on: 22 February 2007, 12:51 »
7.5-13bar is the acceptible range, with a max. difference of 3.0bar between cylinders :)
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Offline jaybv6

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Re: No life in the old girl after I've refitted the head
« Reply #31 on: 22 February 2007, 19:08 »
Result, well sort of.

Did a compression test
Cylinder 1 - 120 PSi / 8.6 bar
Cylinder 2 - 110 PSi / 7.5 bar
Cylinder 3 - 110 PSi / 7.5 bar
Cylinder 4 - 110 PSi / 7.5 bar

Good news.

I cranked it over with jump leads and not plugs in plus disconnected the fuel pump relay to build pressure up.  Mainly cause I replaced the buckets and they obviously haven't got much pressure in them.

So plugs back in and fuel pump relay in.  Much cranking over and nothing, nothing, nothing and then something catches  :grin: and then nothing  :undecided:, nothing and then the battery dies.

Over comes my mate's Galaxy and out come the Jump leads.  Turn it over and it's sort of spluttering and catching and nearly going but the battery hasn't got enough juice in it and it's really trying to start.  It does look like the pressure is causing it  :huh:.

So I've got to charge the battery up and then give it another kick in the knackers and see if it makes a difference.


Thanks for all your help :cool:  and I'll keep you all updated with the progress after I get the battery charged up.

Offline DarnPB

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Re: No life in the old girl after I've refitted the head
« Reply #32 on: 22 February 2007, 20:22 »
It sounds like you are getting there. The engine incidently should start with collapsed tappets as the valves will still be opening, albeit not as advertised. Once the engine finally does fire, don´t be alarmed at the clattering from the cam, just don´t rev it too hard. The tappets will pump up within a few seconds to about a minute.
Good luck. :wink:


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Offline bomp

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Re: No life in the old girl after I've refitted the head
« Reply #33 on: 22 February 2007, 23:49 »
Next time your mate comes over with the jump leads, tell him to keep his car running and give it a bit of revs, so you got the power off his alternator too, for that extra bit of oomph. :) uh if you did allready - my bad. :lipsrsealed:
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Offline jaybv6

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Re: No life in the old girl after I've refitted the head
« Reply #34 on: 23 February 2007, 00:08 »
Next time your mate comes over with the jump leads, tell him to keep his car running and give it a bit of revs, so you got the power off his alternator too, for that extra bit of oomph. :) uh if you did allready - my bad. :lipsrsealed:
We did do that (Mate's a porsche technician).  Still battery on charge now so we'll see what happens tomorrow.

Offline jaybv6

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Re: No life in the old girl after I've refitted the head
« Reply #35 on: 24 February 2007, 17:31 »
Charged battery fitted, splugs removed and fuel pump relay removed, more oil added.  Cranked it over a few times to build some more pressure up.

Reconnected everything and turned the key

 :laugh: lumpy at first then it caught and turned over. 

She's alive and I was able to get it off the drive and took it a few yards to make sure I could get all the gears.  Back on the drive now after fitting the exhaust (sleeve and collar for the front seciton as well as clamps for the rear) and she's idling really well.  Gooing to get it tuned in the week down my mates and I'm ready to get her back on the road.

Looks like it was a lack of pressure in the lifters that caused the problem with it not starting.  Thanks for all your ideas and help :wink:.

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Re: No life in the old girl after I've refitted the head
« Reply #36 on: 24 February 2007, 17:42 »
finally - well done got there in the end!

Offline DarnPB

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Re: No life in the old girl after I've refitted the head
« Reply #37 on: 24 February 2007, 23:04 »
I'm just about to go through the same thing with mine. Got the head off, sump off, oil pump out and pistons out. Hoping to put it all back together this coming week with new rings and stuff. I'll bear this thread in mind.


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