Clutch Adjustment
Clutch Adjustment
Author
Discussion

TurboTony

Original Poster:

908 posts

200 months

Friday 30th May 2014
quotequote all
Since fitting my new slave cylinder I have been unhappy with clutch engagement. It is right on the floor. I did lose the original setting on the rod when I was meesing about fitting the new unit. I now have the car up on axle stands and could adjust the clutch rod to make it longer and therefore improve the bite point. Is there any free play measurement or should I lengthen it until it feels 'about right'. Suggestions welcome.

Top Gear TVR

2,251 posts

183 months

Friday 30th May 2014
quotequote all
I am told half an inch.........

If you wiggle the clutch fork / lever does it rattle about much?

phillpot

17,508 posts

212 months

Saturday 31st May 2014
quotequote all


Tony, maybe obvious but have you tried bleeding it again?


From my understanding of how things work the pushrod length shouldn't be too critical?

Too long and the slave cylinder piston will be pushed to the very back of the bore and there will be constant pressure on release bearing, clutch slip if taken to extremes.

Too short and slave cylinder piston will reach the end of its travel before the clutch is fully dis-engaged.

Between these extremes the slave cylinder piston will find its own resting place once the clutch is released, just off the pushrod. It has no reason to go back any further up the bore?
In effect hydraulic clutch operations are self adjusting.


How much use has it had since fitting?
When I coonverted my Taimar to hydraulic operation (using S Series parts) it "threw a couple of wobblies" before settling down.

TurboTony

Original Poster:

908 posts

200 months

Saturday 31st May 2014
quotequote all
Thanks for the advice guys. I bled the clutch again last night and I lengthened the pushrod this morning. I agree that the clutch should be self adjusting but I suspect that the slave was running out of travel. Test drive in a few minutes once I have buffed off the final polish coat.

TurboTony

Original Poster:

908 posts

200 months

Saturday 31st May 2014
quotequote all
Tried this morning and no clutch!!! Re-bled and it is now perfect. So, literally a bleeding problem.

phillpot

17,508 posts

212 months

Saturday 31st May 2014
quotequote all
TurboTony said:
Tried this morning and no clutch!!! Re-bled and it is now perfect. So, literally a bleeding problem.
phillpot said:
Tony, maybe obvious but have you tried bleeding it again?
whistle

Glad you're sorted smile

TurboTony

Original Poster:

908 posts

200 months

Saturday 31st May 2014
quotequote all
Mike

I had no clutch at all after bleeding the system again. I had to bleed it for a third time!

If anyone wants help with bleeding their brakes I can help. I'll be right behind you...... A long way behind you.

Just think, if you leave home on tour you don't need brakes until you get to Dover.

But they are useful then.

Top Gear TVR

2,251 posts

183 months

Sunday 1st June 2014
quotequote all
bring a kite, for use as a brake - just in case!