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[feeutfo]

seems the borescope thing aint happening, unfortunately, keeps saying he'll "bring it in tomorrow" which obviously leaves no time now even if he does remember.

[Kevin Wood]

seems the borescope thing aint happening, unfortunately, keeps saying he'll "bring it in tomorrow" which obviously leaves no time now even if he does remember.

Never mind. Thanks for trying.

Kevin

[feeutfo]

seems the borescope thing aint happening, unfortunately, keeps saying he'll "bring it in tomorrow" which obviously leaves no time now even if he does remember.

Never mind. Thanks for trying.

Kevin

its a shame, would have been good to play with, 4k worth apparently, and nose around the bores. In reality though, not much we could do if we found something anyway i guess.

On the one hand i'm desperate to know whats up with it, and on the other i'm not sure i whant to know at all. AAAAAAAAH! :-/

[TheBoy]

seems the borescope thing aint happening, unfortunately, keeps saying he'll "bring it in tomorrow" which obviously leaves no time now even if he does remember.

Never mind. Thanks for trying.

Kevin

its a shame, would have been good to play with, 4k worth apparently, and nose around the bores. In reality though, not much we could do if we found something anyway i guess.

On the one hand i'm desperate to know whats up with it, and on the other i'm not sure i whant to know at all. AAAAAAAAH! :-/

I'm sure MDTM will find the reason for the noise.  I just hope the subsequent rebuilding is economically viable, as I am **REALLY* missing that car 

[Andy H]

Would Mark be able to measure the oil pressure?

On the sound recording I listened to I could hear wheezing and dry tappets. The chaffed vacuum hose explains the wheezing. Maybe poor oil pressure would account for the tappets?

[Lazydocker]

Would Mark be able to measure the oil pressure?

On the sound recording I listened to I could hear wheezing and dry tappets. The chaffed vacuum hose explains the wheezing. Maybe poor oil pressure would account for the tappets?

But why... They didn't do anything in that area and it ran sweet as a nut before hand :-/ :-/ I know, because I've driven it and it drives drove like a car with about 40k on the clock

[TheBoy]

seems to be a good coating of oil on cams etc, both banks

[Andy H]

Would Mark be able to measure the oil pressure?

On the sound recording I listened to I could hear wheezing and dry tappets. The chaffed vacuum hose explains the wheezing. Maybe poor oil pressure would account for the tappets?

But why... They didn't do anything in that area and it ran sweet as a nut before hand :-/ :-/ I know, because I've driven it and it drives drove like a car with about 40k on the clock

Coincidences do happen.....

The most frustrating problem solving excercises I have experienced have been the result of not checking something simple because I knew it couldn't be wrong.

[Andy H]

seems to be a good coating of oil on cams etc, both banks

I may be wrong but I think the lifters need pressure to pump them up.  :-/

[TheBoy]

seems to be a good coating of oil on cams etc, both banks

I may be wrong but I think the lifters need pressure to pump them up.  :-/

Yup.  But then Kevin Wood has checked the lifters, and all on drivers side appear to be fine

[Andy H]

seems to be a good coating of oil on cams etc, both banks

I may be wrong but I think the lifters need pressure to pump them up.  :-/

Yup.  But then Kevin Wood has checked the lifters, and all on drivers side appear to be fine

By 'fine' do you mean undamaged or quiet?

My thinking is that something random has happened (such as the pressure relief valve in the oil pump sticking open for example) that allows oil circulation to continue (keeping crank bearings and camshafts lubricated) but not creating enough pressure to make the lifters go quiet.

I admit to clutching at straws but Kevin has already swapped all the gas related components and measuring the oil pressure wouldn't require stripping the engine.

[Kevin Wood]

I admit to clutching at straws but Kevin has already swapped all the gas related components and measuring the oil pressure wouldn't require stripping the engine.

Judging by the amount of oil that appeared around the cams with just a little cranking there's not much wrong with the oil system. The sound isn't consistent with oil starvation where we would have every lifter complaining IMHO.

Kevin

[feeutfo]

Would Mark be able to measure the oil pressure?


On the sound recording I listened to I could hear wheezing and dry tappets. The chaffed vacuum hose explains the wheezing. Maybe poor oil pressure would account for the tappets?

But why... They didn't do anything in that area and it ran sweet as a nut before hand :-/ :-/ I know, because I've driven it and it drives drove like a car with about 40k on the clock

Coincidences do happen.....

The most frustrating problem solving excercises I have experienced have been the result of not checking something simple because I knew it couldn't be wrong.

we came round to that way of thinking after eliminating the lpg related stuff, and is why we removed the cam cover to check the lifters, all tight to the cam lobes at the lowest point, there was a pool of oil sitting nicely round the cam lobes/lifters, all cam cap bolts tight.
 Other thoughts where to check cam timing, again not touched by anyone, but if the valves where striking piston would it run as well as it was? (changed my oil today and noted my engine vibrates more than TB's does with this noise presant iirc)

FOD in the cylinder, only way this could still be possible is if it hadnt damaged a valve i guess? ie something small enough to sit between exhaust valves on the tilted lowest side of the bore and wedge itself in piston crown or head squish area making the piston rock at tdc. Kevin had full compression and no plug damage though so... :-/ .....lets hope Mark can finds a cost effective answer.

[2woody]

did my coils and leads go with it ?

[feeutfo]

did my coils and leads go with it ?

leads are currently fitted afaik? didnt fit coil pack.