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The mkiv Supra Owners Club

Will not select gear


Gamer

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Does it engage with the engine off?

ie does the shifter move the selector and physically move the cogs in the gearbox?

 

Have all parts been transferred from the old car? inc the clutch cylinders/lines etc? Does the clutch resevoir have any fluid in it?

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Clutch needs adjusting???

How old is your clutch and when was it last adjusted??

What type of clutch is it??

 

Could need adjusting, the whole gearbox and engine were just transplanted so it could need some adjusting still.

 

The clutch is an HKS GD Max Twin plate

 

is the clutch pedal in the right position? not sitting too low?

 

does it select when engine is off?

 

It is sitting low, yes. No idea on if it can select with engine off, will check that once I get it home today

 

is it clutch fluid?

worth a look i reckon

 

 

 

I do not actually have the car back yet, it is on it's way back to me now on the transporter. I only found out that it could not select gear when they went to collect it a few hours ago.

 

I was told they topped up the fluid but it still would not select gear.

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Does it engage with the engine off?

ie does the shifter move the selector and physically move the cogs in the gearbox?

 

Have all parts been transferred from the old car? inc the clutch cylinders/lines etc? Does the clutch resevoir have any fluid in it?

 

Will check once she's here.

 

 

AFAIK, yes all parts were transferred over as the donor car was an automatic.

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Guest gzaerojon

i'm not completely familiar with the 6 speed set up, but if the pedal is sitting low it could just need bleeding a little so it can fully disengage the clutch enough to select a the gear.

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Not sure if it is pull or push but I will find out.

 

 

I have the car here with me now, bit dark out to do much of anything so will have a go at it all tomorrow.

 

At first glance/try I can say that the pedal is very soft indeed, hardly any resistance. When you try to put it into gear it will not engage it just grinds a bit.

 

 

I should add that I also have a C's short shifter installed (new install) not sure if that could also be a problem or not but I do not think that would affect the lack of pedal feel.

 

Thanks for the help and kind words so far. ;)

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Not sure if it is pull or push but I will find out.

 

 

I have the car here with me now, bit dark out to do much of anything so will have a go at it all tomorrow.

 

At first glance/try I can say that the pedal is very soft indeed, hardly any resistance. When you try to put it into gear it will not engage it just grinds a bit.

 

 

I should add that I also have a C's short shifter installed (new install) not sure if that could also be a problem or not but I do not think that would affect the lack of pedal feel.

 

Thanks for the help and kind words so far. ;)

 

 

Have you used you HKS twin plate before? I have one of these and they are as light as a normal clutch......and also IMO a great clutch :)

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Have you used you HKS twin plate before? I have one of these and they are as light as a normal clutch......and also IMO a great clutch :)

 

Yes John, It is what I had in the first Orange beast. ;) I drove with this very same clutch with no problems at all. The feel is completely different to what it was before. You can certainly feel that something is not right. Also when I am pushing the pedal down I can feel some slight vibrations through the pedal.

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Sounds like either the fork arrangement or the bearing has collapsed, could even be diaphragm failure. Bleed it, if it makes no odds see what you can work out looking through the inspection holes, if still nothing is obvious you will have to pull the `box out. Can't see the short shifter having anything to do with it. If i had a manual MKIV I'd put a LONGER lever in it, I did one once, and it transformed the box. Replacing the rubber bushes on the lever tripod with solid ones makes a huge difference too, but the lever may buzz a bit at certain RPM's.

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Sounds like either the fork arrangement or the bearing has collapsed, could even be diaphragm failure. Bleed it, if it makes no odds see what you can work out looking through the inspection holes, if still nothing is obvious you will have to pull the `box out. Can't see the short shifter having anything to do with it. If i had a manual MKIV I'd put a LONGER lever in it, I did one once, and it transformed the box. Replacing the rubber bushes on the lever tripod with solid ones makes a huge difference too, but the lever may buzz a bit at certain RPM's.

 

Cheers, I will see what i can make out of it tomorrow.

 

I can't see that a clutch which was working before the crash suddenly isn't.

 

It's an issue with the install in the new shell.

 

I agree Alex.

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