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Author Topic: V6 Timing was all going so well...  (Read 1000 times)

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Diamond Black Geezer

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V6 Timing was all going so well...
« on: 30 April 2025, 11:20:58 »

Well, I'm back after a long break... More on that later.

So the Old Girl has been very sadly laid up for several years but now I've got the space, time and almost even finances to actually do work on her, I've tackled the timing.

The crank seems to jam when I hand crank round at maybe 10 o clock .

Firstly the old OOF DVD is excellent and actually it all went like  child's play.. and after several cranks round, and a small tweak to the eccentric pulleys, ensuring all torqued correctly etc, I left it a day, and came back and just for safety's sake I thought I'd give her a couple more turns. First seems to get very stiff at the 10ish. Puffed a bit, after 30 seconds she was free and fine. Next time she really seemed jammed. I put a shirt extension on just to eliminate the 'im a puff' factor. Still solid and so didn't want to be silly and really force it

After half an hour I went to packup and she went round.

My worry is that because the engine's been sat for so long there's zero oil on the valves and at least one is sticking, and clashing with a piston... but after a while it sort of slowly slides back. Logical? Not possible? Daft idea?

I'd welcome the collective OOF wisdom on this.

Thanks in advance  :y
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Re: V6 Timing was all going so well...
« Reply #1 on: 30 April 2025, 11:37:17 »

Plugs out and pour a dash of oil into each cylinder and give it a couple of days to do its thing.

That it turned past 10 without too much effort is a promising sign... But unfortunately the way to confirm your suspicion is either with a borescope, compression test or removing the heads.
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #2 on: 30 April 2025, 12:58:46 »

AHH, Mr Smeagle good to see you're here still!

Fair dos, could be a piston also, got you.

So longer term I've got some G Cams I was fitting longer term, but I was going to just get her actually running and on the road then start doing all that jazz, before I start swapping lots of engine bits, introducing unknown parts etc..

Might scrounge the compression tester from work.  :y



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Marks DTM Calib

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Re: V6 Timing was all going so well...
« Reply #3 on: 30 April 2025, 13:22:16 »

Where is the car?

If the timing was as per the video then it should be ok, I assume it was running when parked up?

I suspect you would be hard pushed to bend a pair of valves by hand, they are pretty solid
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #4 on: 30 April 2025, 14:10:55 »

Hi Mark!

Car is in leafy Warwickshire, and yes got her absolutely bob on to the timing marks, my main concern was IF there's a stuck valve, soon as I crank her over and worse, fire, then that's going to throw a piston right into said stuck valve...
 
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #5 on: 30 April 2025, 23:08:26 »

Popped the OS bank of plugs out as they're the easiest, a teeny splash of oil in the bores, and tried cranking the engine round a few times, delighted to report that the engine seems to go round with no issues whatsoever.

I've redone the timing again this evening, it seems to have slipped a smidge advanced on the 3-4 cams. Doesn't hurt to completely start from scratch and to be fair it's quite enjoyable and doing it again helps me better understand the principle/logic behind the eccentric pulleys so it's no bad thing.

So I'll report back tomorrow evening if I get chance to recheck my work.
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Re: V6 Timing was all going so well...
« Reply #6 on: 01 May 2025, 06:21:07 »

Great stuff!

Assuming it hasn't run for a while, remind yourself that the hydraulic tappets will take a little while to quiet down, and that trickle of oil might give a little smoke, so don't immediately reach for the swear jar on first startup.

Not speaking from experience, no, not at all :D
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #7 on: 01 May 2025, 08:44:24 »

Great stuff!

Assuming it hasn't run for a while, remind yourself that the hydraulic tappets will take a little while to quiet down, and that trickle of oil might give a little smoke, so don't immediately reach for the swear jar on first startup.

Not speaking from experience, no, not at all :D

Hahah. No, I've been running a Land Rover the last few years so I've learned a lot about patience and things not working right first time!
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Re: V6 Timing was all going so well...
« Reply #8 on: 01 May 2025, 09:30:38 »

My 3L v6 has been sat 20+ years and started it the other week after its top end rebuild (failed guide roller bearing) and it still rattles a bit from tappets, nothing a good run wont sort I suspect.
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Re: V6 Timing was all going so well...
« Reply #9 on: 09 May 2025, 09:45:16 »

Hi Mark!

Car is in leafy Warwickshire, and yes got her absolutely bob on to the timing marks, my main concern was IF there's a stuck valve, soon as I crank her over and worse, fire, then that's going to throw a piston right into said stuck valve...

If you get stuck I can probably have a look on the way home from work
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Re: V6 Timing was all going so well...
« Reply #10 on: 11 May 2025, 08:54:05 »

Popped the OS bank of plugs out as they're the easiest, ...

I'd take all the plugs out so you know the resistance isn't from compression, then see how easily it turns over.
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #11 on: 02 June 2025, 13:44:42 »

Good news, gentlemen!

She's alive!!

Been a delay as I've been, once again, trying to drag my daily back to life. I work walking distance from work and the village shops, so thankfully I've not been totally cut off from the world.

Anyway, she's purring like a kitten! Little tappety, I think she had a sticky lifter maybe, the EML is on, but a pound coin balances and I managed to get a 20p to stay for a couple of seconds before toppling so she's nearly as smooth as she ever was

I needed up loosening the pulleys ans starting again four times in the end, to be the marks absolutely bob on. Had a little trouble the OS bank slipping,.couldn't get it quite right.

But thoroughly enjoyable and have a real sense of achievement, when I think only a few years ago I was absolutely refusing to dare to do it on my own, needing someone to hold my hand.

But lots of life changes in the last few years had obviously given me some confidence/ignorance to tackle it on my own.

Only fair that I should wholeheartedly thank the OOF DVD. Was it The Boy and Marks DTM who started in it?
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Re: V6 Timing was all going so well...
« Reply #12 on: 02 June 2025, 20:41:21 »

Absolutely brilliant, well done.

The DVD is invaluable, I still use it and I've probably done the job a dozen times.
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Diamond Black Geezer

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Re: V6 Timing was all going so well...
« Reply #13 on: 02 June 2025, 22:18:51 »

Cheers! Forte top end treatment is on its way, so we'll see if that clears the (presumably) sticky lifter.

Longer term I want to get my G Cams fitted, and so a proper go over, take the lifters out, give them a decent clean etc. But getting her running and on the road is the priority for the time being.
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Re: V6 Timing was all going so well...
« Reply #14 on: 03 June 2025, 09:15:31 »

New cams ? new lifters then !!!
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