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Author Topic: V6 Timing was all going so well...  (Read 157 times)

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Diamond Black Geezer

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V6 Timing was all going so well...
« on: Yesterday at 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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Doctor Gollum

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Re: V6 Timing was all going so well...
« Reply #1 on: Yesterday at 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: Yesterday at 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: Yesterday at 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: Yesterday at 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: Yesterday at 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: Today at 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: Today at 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: Today at 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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