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Author Topic: Changing head gasket - locking tools?  (Read 11853 times)

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Enceladus

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Re: Changing head gasket - locking tools?
« Reply #45 on: 08 October 2020, 15:33:15 »

Yes. Take off the timing cover and see is the belt OK, the tensioner still tensioned and the eccentric adjustment bolts on the rollers not loosened?

Did you buy a timing belt tool kit? What make and part number is the belt kit you used? I'd be inclined to completely remove the belt and reinstate it from scratch using the timing tools.

And are you still certain that the cams and sprockets are correctly re-assembled and fitted? Note that your car may well have newer type sprockets with two different keyway positions depending on whether the sprocket is to be fitted to an exhaust or intake cam. One size fits all i other words.
« Last Edit: 08 October 2020, 15:36:39 by Enceladus »
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Doctor Gollum

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Re: Changing head gasket - locking tools?
« Reply #46 on: 08 October 2020, 16:00:48 »

A known good engine swapped by a competent garage is probably the quickest/cheapest approach.

You could waste alot of time/money trying to find out what went wrong, even if you inadvertently did something drastic. That it started and subsequently stalled compounds the problem, so rule out the basics...

Fuel... How much in the tank, and does the pump work?
Spark... Does it still produce one?
Air... Intake clear and throttle working?
« Last Edit: 08 October 2020, 16:04:14 by Doctor Gollum »
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Migv6 le Frog Fan

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Re: Changing head gasket - locking tools?
« Reply #47 on: 08 October 2020, 19:40:54 »

A known good engine swapped by a competent garage is probably the quickest/cheapest approach.

You could waste alot of time/money trying to find out what went wrong, even if you inadvertently did something drastic. That it started and subsequently stalled compounds the problem, so rule out the basics...

Fuel... How much in the tank, and does the pump work?
Spark... Does it still produce one?
Air... Intake clear and throttle working?
[/highlight]

Always worth checking this. Its easy to bung the inlets on the manifold to prevent anything dropping down there, then forget to remove one or more when reassembling.
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GastronomicKleptomaniac

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Re: Changing head gasket - locking tools?
« Reply #48 on: 09 October 2020, 15:07:34 »

A known good engine swapped by a competent garage is probably the quickest/cheapest approach.

You could waste alot of time/money trying to find out what went wrong, even if you inadvertently did something drastic. That it started and subsequently stalled compounds the problem, so rule out the basics...

Fuel... How much in the tank, and does the pump work?
Spark... Does it still produce one?
Air... Intake clear and throttle working?
[/highlight]

Always worth checking this. Its easy to bung the inlets on the manifold to prevent anything dropping down there, then forget to remove one or more when reassembling.

 ::) Been there, done that, heard the revving...!
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raywilb

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Re: Changing head gasket - locking tools?
« Reply #49 on: 09 October 2020, 15:30:56 »

If I’m changing head gasket and cam belt/tensioner set, water pump etc, do I need to get the locking tools; the red & green sprocket locks and the water pump lock?

See these on eBay for £40 but do I need them ?

Thanks
see your in york my old domain. moved to 5mls south of Thirsk. if you need a hand or any tools i have a extensive range.
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woolley11

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Re: Changing head gasket - locking tools?
« Reply #50 on: 11 October 2020, 08:42:38 »

Thanks “raywilb” - very kind offer, but we’re nearer south side of York so perhaps a bit too far.

I’ll strip it down this morning and report back.

As for the belt kit it was a Gates set (belt, backing plate, tensioner). I checked & double checked every setting/timing marks and torque before rebuilding and engine was turning over fine on crank with socket bar.

If belt has snapped I should be in line for parts warranty/engine damage claim but as I as I’m not a professional garage,  they’d say I’d fitted it wrong 🤷🏼‍♂️ - if it’s snapped - why??

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BazaJT

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Re: Changing head gasket - locking tools?
« Reply #51 on: 11 October 2020, 10:13:48 »

Did you fit the new backing plate or swap the new tensioner/pulley onto your old backing plate? Aiui there are two types of backing plate which are different to each other[others will know in what way] and you're better off re-using your old backing plate rather than changing it.
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Enceladus

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Re: Changing head gasket - locking tools?
« Reply #52 on: 11 October 2020, 14:34:29 »

No mileage in speculating about the timing belt. Take the cover off and check if it's snapped. Or loose. Or rubbing and shedding black particles. Please report back. There's no point in spending money on new parts until you know where you stand and to that end you can certainly check as much as practical. There's equally no point condemning your engine out of hand.
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Nick W

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Re: Changing head gasket - locking tools?
« Reply #53 on: 11 October 2020, 15:45:55 »

No mileage in speculating about the timing belt. Take the cover off and check if it's snapped. Or loose. Or rubbing and shedding black particles. Please report back. There's no point in spending money on new parts until you know where you stand and to that end you can certainly check as much as practical. There's equally no point condemning your engine out of hand.


That.


Don't guess, check.


It's much more likely that the belt timing has slipped than broken.
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Migv6 le Frog Fan

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Re: Changing head gasket - locking tools?
« Reply #54 on: 11 October 2020, 17:18:56 »

Looks like I may be in a similar position to the OP - if not worse.  :'(
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woolley11

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Re: Changing head gasket - locking tools?
« Reply #55 on: 11 October 2020, 17:36:11 »

Well mystery continues.🤔

Stripped front of engine and removed cam belt cover.

All present and correct, no issues with belt/rubbing. Turned engine clockwise off crank bolt with socket and all 4 sprockets lined up with cut outs on backing plate. Checked sprockets are correct for each cam which they are.

I ought to take cam covers off next and see what camshafts are doing ?

What I haven’t done yet is dig the crank tool out and see what the does with regards TDC.
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Doctor Gollum

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Re: Changing head gasket - locking tools?
« Reply #56 on: 11 October 2020, 18:04:23 »

Why on earth not?  ???

That would have given a much clearer view of the timing than guessing against the rear cover...
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woolley11

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Re: Changing head gasket - locking tools?
« Reply #57 on: 11 October 2020, 19:27:56 »

Ran out of time as had to ferry kids about  ;)

Will be doing this early this week. I was more initially interested in checking the belt, condition and location of sprockets in relation to the backing plate.

See what I come up with
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woolley11

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Re: Changing head gasket - locking tools?
« Reply #58 on: 17 October 2020, 17:39:29 »

Got some time this afternoon to screw on the crank timing tool. I’ve rotated it clockwise to the water pump as one does and locked it in place.

Well the timing looks to be well advanced in that all 4 cam sprockets TDC Marks are equally to the right of the backplate cut outs by about 10mm.  :-\

Not sure how mind - but that’s obviously the issue with crap running. I liked to know how it’s happened as I checked and re-checked ??!.

Any pointers to put right greatfully received. Suspect I’ll have to remove belt and start again with the timing as too far to adjust on the belt tensioners.
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Doctor Gollum

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Re: Changing head gasket - locking tools?
« Reply #59 on: 17 October 2020, 18:29:38 »

Remove/refit the belt again. Methodically. From scratch. Using the correct tools.  :y

Oh, and it goes without saying that you must not run the engine again until you have done it. Ignoring this will probably wreck it as the current timing is on the limit of what the clearances will allow.
« Last Edit: 17 October 2020, 18:32:20 by Doctor Gollum »
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