Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: JamesV6CDX on 19 November 2007, 19:51:11
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Spent the whole of last night in the piddling rain, sleet, dark, and cold, getting the cam timing bang on and putting the car back together.
Bearing in mind I was working under a dodgy bit of tarpaulin, in the pitch dark, with only a maglite to see by - the job took I would estimate just over three hours.
I cranked the engine over by hand again once timed up properly, and I could again feel good compression.
Double checked everything was done properly, filled up with coolant, and Fired her up.
My three bitterly cold and wet hours paid off. She roared straight into life. Sounded a bit tappety to begin with, but I wonder if that was the OS manifold gasket, been suspicious of that for a while.
Once she got a bit warmer, and the SAI also shut up, she purred like a happy kitten :)
Then died again. Tried cranking, and she fired up, coughed, and died. Went and got a can of petrol, and all was well again ::)
Gave it a couple of gentle revs, sounded OK. Couple of hard revs near the redline - again, no problem.
A slight "knock" when I reved it, I Traced to a loose cable tray - whoops! fixed that.
Road test - seems the same as before. The flat spot at 4krpm has now gone, so I just wonder if it didn't slip all those teeth in one go. Maybe it had slipped only three teeth instead of four, and I got away with it??
I'll compression test it again, but the way it's looking, is that I had a very lucky escape!
In addition to it now running OK, it has a brand new genuine GM cambelt kit, water pump, aux belt, and aux belt tensioner, all fitted and set up properly by myself.
I've now done approx 300 miles, all between 70-90mph, and I'm averaging 30 miles per gallon.
Fingers crossed. Looks like my LPG install can continue this weekend... :y
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Oh, and I found the radio code, so the CCR2006 is also working ;D
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:y really pleased for you James you deserved a bit of good luck!!!! :y
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Congratulations on both your luck and your tenacity .. :)
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But when we checked timing a couple of months back, it was pretty close, and it had its flat spot then?
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fantastic news.... and i did say on the initial posts, you may be lucky ;)
Now buy a lottery ticket !
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tis very good news, i'm quite pleased i said dont start it last night, tho i'm not sure my post alone was a big influence ;D
i'm thinkin, before you LPG it, run it for a month or so just to be sure it's really completely back to its good self...
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Thank God for that.
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Brilliant result! Well done mate!
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What a relief, well done James :y
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glad that worked out well......now you can join the LPG fun
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Well done James, top job :y
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Excellent news! Flat spot cured as well :y
I'd take some compression readings just so you have a baseline, and to see if the iffy cylinders pick up when hot.
Meanwhile, in a dry garage, so no excuse there, I still haven't got SWMBO's crank pulley off. >:(
I really have tried everything now, except booking it into the stealers and sniggering as I walk out leaving it to them to figure out. :(
Kevin
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Jaime - no, it didn't have that flat spot after we corrected the timing initially.
I've had the flat spot for about three weeks - I just wonder....
I'm thinking possibly, car conked out and shuddered just to lack of fuel (hence engine sounding awful when it died)
And the cambelt slip was maybe unrelated, just very lucky that I detected it before total failure?
You should see the top idler, it was in a BAD way!!!
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Excellent news! Flat spot cured as well :y
I'd take some compression readings just so you have a baseline, and to see if the iffy cylinders pick up when hot.
Meanwhile, in a dry garage, so no excuse there, I still haven't got SWMBO's crank pulley off. >:(
I really have tried everything now, except booking it into the stealers and sniggering as I walk out leaving it to them to figure out. :(
Kevin
Kevin - depending on the bolt spacing on the auxiliary part of the pulley, I have a fantastic tool made for me by sassanach, it may just help you out....
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Jaime - no, it didn't have that flat spot after we corrected the timing initially.
I've had the flat spot for about three weeks - I just wonder....
I'm thinking possibly, car conked out and shuddered just to lack of fuel (hence engine sounding awful when it died)
And the cambelt slip was maybe unrelated, just very lucky that I detected it before total failure?
You should see the top idler, it was in a BAD way!!!
But you said it was 4 teeth out. You would know about that.
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Kevin - depending on the bolt spacing on the auxiliary part of the pulley, I have a fantastic tool made for me by sassanach, it may just help you out....
Well, I'd say by looking at it that the holes are on a smaller diameter than the Omega's - and there are only 4 of them. I'll go and have a measure.
The other two options, as far as I can see, are to throw it all back together, pack it off to a garage and stump up for it or get myself a compressor and a windy wrench. Anyone have any opinions on whether that'd sort it? It's going to cost the same order of magnitude either way, but with one option I get a free compressor and windy wrench. ;)
Kevin
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Jaime - no, it didn't have that flat spot after we corrected the timing initially.
I've had the flat spot for about three weeks - I just wonder....
I'm thinking possibly, car conked out and shuddered just to lack of fuel (hence engine sounding awful when it died)
And the cambelt slip was maybe unrelated, just very lucky that I detected it before total failure?
You should see the top idler, it was in a BAD way!!!
But you said it was 4 teeth out. You would know about that.
It could have been three teeth. It was dark, I was worried....
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Great news James, and Kev the method I have used on pulleys (used on a Rootes 1600) was socket on bolt, bar on chassis and use starter motor
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Great news James, and Kev the method I have used on pulleys (used on a Rootes 1600) was socket on bolt, bar on chassis and use starter motor
I tried this yesterday. Bar went "clunk". One dent in my garage floor, but bolt still stuck fast. >:(
Kevin
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Thats is good luck.... :y
In future.....check the bleeding obvious (fuel!) and report the exact findings (exact number of teeth out!)......the advice given is based on the information given.
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Great news James, and Kev the method I have used on pulleys (used on a Rootes 1600) was socket on bolt, bar on chassis and use starter motor
I tried this yesterday. Bar went "clunk". One dent in my garage floor, but bolt still stuck fast. >:(
Kevin
You wont shift that bolt without a 3 foot bar and the crank locked, there dam tight but then they need to be.....have you tried warming up the pulley assembly and then tapping it at 12, 6, 9 and 3 Oclock positions in order to get it off the cam belt sprocket.
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You wont shift that bolt without a 3 foot bar and the crank locked, there dam tight but then they need to be.....have you tried warming up the pulley assembly and then tapping it at 12, 6, 9 and 3 Oclock positions in order to get it off the cam belt sprocket.
Yep. Have tried that, but have read reports that the main bolt needs to come out before it will separate, or at least it needs to come out to do the cam belt. Can't quite see the point of that :-/ Could be internet mis-information, of course.
Anyway, It's had another dousing in plus gas.
Locking the crank is key to getting it off, I think. I have applied a lot of torque to it with the transmission holding it but you can only apply smooth torque like this due to the transmission winding up. Guess I need to find a way of locking it, although I can't get to the bell housing let alone find somewhere to lock the flywheel. Guess it's inlet manifold off, starter motor off :-/
Any point in trying a reasonably priced impact wrench, do you reckon?
Kevin
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No....can you make a long bar to bolt to the cambelt pulley?
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No....can you make a long bar to bolt to the cambelt pulley?
I doubt I could fabricate anything that'd take the kind of torque I've been giving it, tbh. If the aux. pulley would come off there's a chance I could make a short bracket that would lock it against a nearby bolt on the engine, under tension, but I have not got any metal substantial enough to make anything else, I fear.
Kevin
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Thats is good luck.... :y
In future.....check the bleeding obvious (fuel!) and report the exact findings (exact number of teeth out!)......the advice given is based on the information given.
Cheers Mark,
MID reported 30 miles, so I didn't initially think about fuel :-[ :-[
I still think i've probably grazed a couple of valves though, I will compression test again, but It may still benefit from a rebuild (in the summer!) ?
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So, what's the final theory, then? Timing slipped a little while ago and caused the flat spot. The pulley bearing finally started complaining verbally as you were pulling up the driveway and, by coincidence, you ran out of fuel at exactly that moment?
Kevin
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So, what's the final theory, then? Timing slipped a little while ago and caused the flat spot. The pulley bearing finally started complaining verbally as you were pulling up the driveway and, by coincidence, you ran out of fuel at exactly that moment?
Kevin
Sounds like it..... ;D
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Thats is good luck.... :y
In future.....check the bleeding obvious (fuel!) and report the exact findings (exact number of teeth out!)......the advice given is based on the information given.
Cheers Mark,
MID reported 30 miles, so I didn't initially think about fuel :-[ :-[
I still think i've probably grazed a couple of valves though, I will compression test again, but It may still benefit from a rebuild (in the summer!) ?
Bah. Stick a V8 in it. :y
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Thats is good luck.... :y
In future.....check the bleeding obvious (fuel!) and report the exact findings (exact number of teeth out!)......the advice given is based on the information given.
Cheers Mark,
MID reported 30 miles, so I didn't initially think about fuel :-[ :-[
I still think i've probably grazed a couple of valves though, I will compression test again, but It may still benefit from a rebuild (in the summer!) ?
A vac test would prove interesting.
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A vac test would prove interesting.
Can do one of them at the weekend. :y
Once the MX5 spawn of satan has been removed from the garage. >:(
Kevin
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[size=48]YEEEEEEEEEEEEEEEHHHHHHHHHAAAAAAAAAAA[/size]
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Great news James, and Kev the method I have used on pulleys (used on a Rootes 1600) was socket on bolt, bar on chassis and use starter motor
I tried this yesterday. Bar went "clunk". One dent in my garage floor, but bolt still stuck fast. >:(
Kevin
You wont shift that bolt without a 3 foot bar and the crank locked, there dam tight but then they need to be.....have you tried warming up the pulley assembly and then tapping it at 12, 6, 9 and 3 Oclock positions in order to get it off the cam belt sprocket.
LOL - I recall ;)
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Well, gave it one last squirt of plus gas and one more heave with the 6' breaker bar extension and BANG!
Has something broken? No, bolt has finally yielded!
So game on, James. Garage will be all yours come the weekend!
Kevin
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So game on, James. Garage will be all yours come the weekend!
Fantastic :)
LPG kit is all boxed up... you rekon between the three of us, we can get it done over the two days? :)
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LPG kit is all boxed up... you rekon between the three of us, we can get it done over the two days?
No problem :-/
;)
Kevin