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Clutch rod hitting front end LC Torana

Started by _glennhailstone_ , Mar 24 2016 06:25 PM

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#1 _glennhailstone_

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Posted 24 March 2016 - 06:25 PM

Hi all,

202, M20 LC Torana. Clutch rod hitting front end. No clearence. Vibrating annoying at idle.

Anybody else know of this, any solutions.

Thanks

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#2 _glennhailstone_

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Posted 24 March 2016 - 06:39 PM

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#3 S pack

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Posted 24 March 2016 - 08:06 PM

Have you got the correct brace rod from the bellhousing bracket to the relay lever?

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#4 _glennhailstone_

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Posted 25 March 2016 - 06:25 AM

Hi Dave.

Probably not. Is that the round bar in the photo with the flat piece on the end. It used to have an Opel box.

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#5 _glennhailstone_

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Posted 25 March 2016 - 07:29 AM

If it is the brace rod, I can't find one on rare spares : (

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#6 _glennhailstone_

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Posted 25 March 2016 - 07:52 AM

Part names for clarification

lcshopmanual%20dragged_zpsdgaqzaag.jpg

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Posted 25 March 2016 - 08:04 AM

Not the clutch fork pushrod. It is the Clutch Relay Lever Brace in the shop manual pick. I have heard of people using the HT/G brace which is incorrect for LC/LJ.

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Posted 25 March 2016 - 08:07 AM

Also check the clutch rod anchor pin on the clutch pedal. It may be half worn through.

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#9 _glennhailstone_

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Posted 25 March 2016 - 12:11 PM

Ok thanks Dave, I'll check it out. It seems like if I make the push rod shorter it may fix the problem, but I shouldn't have to as it looks like an original part. I'll check the things you said first.

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#10 _glennhailstone_

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Posted 25 March 2016 - 12:21 PM

I can't find any information on the clutch relay lever brace. And none for sale anywhere.

Would you please be able to measure your one and maybe take a photo of it, then I can compare.

Thanks again,

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Posted 25 March 2016 - 12:29 PM

Ok thanks Dave, I'll check it out. It seems like if I make the push rod shorter it may fix the problem, but I shouldn't have to as it looks like an original part. I'll check the things you said first.

The push rod is and has to be adjustable for length via the conical nut that contacts the throwout fork to enable correct clutch adjustment.

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#12 N/A-PWR

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Name:Dave I
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Posted 25 March 2016 - 12:30 PM

Hello Glenn,

In this link picture shows the positioning of the parts:-

http://www.gmh-toran...od/#entry265785

Edit:-

Just thinking mechanically out aloud here:-

1 - correct length clutch shear rod is 12 inches (from pedal to rat trap)

2 - worn pivot points of rat trap (a lot of force wears/flogs these linkages out)

3 - clutch pedal position in the cab.

Edited by NA-PWR, 25 March 2016 - 12:44 PM.

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#13 _glennhailstone_

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Posted 25 March 2016 - 01:21 PM

Thanks I'll check it out. Back under the car.... yay!

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#14 _glennhailstone_

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Posted 25 March 2016 - 05:16 PM

I have measured the relay lever brace. It measures 325mm between hole centres. If somebody could please measure their relay lever brace that would be great. And some photos.

The push rod measures approx 430mm which is I think right.

So Im just confused now.

Edited by glennhailstone, 25 March 2016 - 05:20 PM.

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#15 Bazza

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Posted 25 March 2016 - 06:01 PM

Hi Glenn

I get 307 mm centre to centre between the pivot point holes and 330mm end to end.

Bazza

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Posted 25 March 2016 - 07:16 PM

Hi Glenn

I get 307 mm centre to centre between the pivot point holes and 330mm end to end.

Bazza

Agree, 307mm hole centres on the relay lever brace but I get 325mm overall length.

Glenn, all your clutch linkage parts look correct for LC/LJ 6cyl.

What I would like to know now is the overall length of the pull rod that goes from the relay lever to the clutch pedal.

You will most likely need to remove the rod from the car to measure it.

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#17 _glennhailstone_

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Posted 26 March 2016 - 05:56 AM

Thanks alot for that. How close is your guys relay lever brace to the front end, sorry, could you please measure that as well. A photo would be good as well.

Edited by glennhailstone, 26 March 2016 - 05:59 AM.

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#18 _glennhailstone_

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Posted 26 March 2016 - 10:37 AM

Just re measured relay lever brace, properly.. and I get 308mm hole centres and 330mm overall, so thats alright. I will check pull rod length, although it looks like its never been touched.

Im thinking its the brace bracket. If you look at my photos it doesn't look like the one in the Torana manual. Also there are two holes in it for the relay lever brace to bolt onto. To fix the problem I just need to move the relay lever brace about 10mm back towards the back of the car, because its only just touching the front end. The second hole is 10mm back from the first one... I wonder, could you guys please check yours.

Edited by glennhailstone, 26 March 2016 - 10:45 AM.

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Posted 26 March 2016 - 04:08 PM

Just re measured relay lever brace, properly.. and I get 308mm hole centres and 330mm overall, so thats alright. I will check pull rod length, although it looks like its never been touched.

Im thinking its the brace bracket. If you look at my photos it doesn't look like the one in the Torana manual. Also there are two holes in it for the relay lever brace to bolt onto. To fix the problem I just need to move the relay lever brace about 10mm back towards the back of the car, because its only just touching the front end. The second hole is 10mm back from the first one... I wonder, could you guys please check yours.

There may be a second hole in the brace bracket that bolts to the bellhousing but there is only one pin fitted to to the bracket to attach the brace to.

In light of the evidence so far I still feel the anchor pin on the clutch pedal may be badly worn.

Also what is your clutch adjustment like? Does the clutch begin to engage when the pedal is about an inch off the floor?

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#20 _glennhailstone_

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Posted 26 March 2016 - 04:36 PM

You are right Dave, there is only one pin fitted to the bracket, although it does not bolt to the bell housing, its just a spare hole?

If you look closely at my photo you can see it just behind the pin that the relay lever goes onto.

I think you might also be right about the anchor pin. Can you identify it on the manual page above, I couldn't find anchor pin anywhere.

I have put a bolt through the second unused hole and this has fixed the problem. I don't think its right though but it will do for now until I find this anchor pin.

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Posted 26 March 2016 - 05:35 PM

lcshopmanual%20dragged_zpsdgaqzaag.jpg

Fig. 7A-13. View A at top R.H of page. It says 'Clutch Rod Anchor (install this way)

That anchor fits onto a pin on the clutch pedal and the clip stops it from coming off the pin.

Over many years of use the anchor cuts into the pin. which will affect the adjustment of the other linkages.

Also note that the clutch control rod used in the LC/LJ is similar to the control rod used in the HT/HG but I do not know if both rods are the same length or not.

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#22 Bazza

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Posted 26 March 2016 - 05:58 PM

Hi

My rat trap is not on the vehicle at the moment (vehicle away being painted) but I can put up a pic if needed.

Cheers

Bazza

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#23 _glennhailstone_

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Posted 27 March 2016 - 04:30 AM

Thanks Dave I'll check it out. Yes that would be great thanks Bazza

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#24 Bazza

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Posted 27 March 2016 - 08:59 AM

Hope this helps

Double click for whole picture

Cheers

Bazza

Attached Files

Rat trap__.jpg 99.38K 43 downloads

Edited by Bazza, 27 March 2016 - 09:00 AM.

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#25 _glennhailstone_

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Posted 27 March 2016 - 06:34 PM

That's great thanks Bazza. Exactly the same as mine. I've moved the relay lever bracket back one hole, by putting an M8 bolt through the spare hole. Its fixed the problem but only temporary cause its not right. Could you please measure the push rod.

Edited by glennhailstone, 27 March 2016 - 06:37 PM.