Bleeding 300TDi R380 clutch

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Originally Posted by TonyC

I put the slave up the other way, bleed at the top, maybe that's my problem, the air isn't getting trapped 🤔

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[bigsmile1] Way back in my army days we had problems with the front brakes on IIAs. These had two front wheel cylinders each wheel, mounted top and bottom.The flex hose fed into the top cyl, there was a pipe top to bottom, and a bleeder at the very bottom. You can probably guess that we had difficulty getting a decent pedal. They even went to the trouble of getting someone from Girling (? I think. Brake 'expert' at any rate ) to come and look. His solution was to unbolt the backing plate and turn it upside down to bleed and then put it back. My suggestion that it would be quicker to invert the whole car was not well received. Stupidest thing I had ever heard, up until then. I can't remember how it was resolved, or if they were all like that. John's suggestion might have worked on those as well.

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Originally Posted by TonyC

One the subject of odd round thing Discos have, what is the thing that look a bit like a harmonic balancer on the front diff just near the drive flange? My Defender doesn't have one of those either.

Tony

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Dunno. Always assumed it was a damper of some sort.

My Young bloke just had the same problem, pushrod had punched through the clutch fork.

Colin

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Originally Posted by gromit

My Young bloke just had the same problem, pushrod had punched through the clutch fork.

Colin

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I think it's the pivot that punches though the fork, but the result would be the same, gearbox out.

Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

Tony

Quote:

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Originally Posted by TonyC

I think it's the pivot that punches though the fork, but the result would be the same, gearbox out.

Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

Tony

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Yes, I meant the pivot.
He's driving the Disco to the garage where he works (without the clutch) and dropping the gearbox with the help of a hoist and a transmission jack.

Colin

Quote:

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Originally Posted by TonyC

Our problem with clutch bleeding could have been avoided by not disconnecting the line from the slave.

We did the clutch in the garage, front wheels on ramps, having done it I'm going to buy a host, I'm to old for this crawling around under cars caper, and I don't consider myself that old 😁

Tony

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My son has helped me with two D1 R380s and one D2 auto, all on our backs. He now has a hoist and a Patrol.

As for not disconnecting the slave? Spot on. 2nd time we did that.

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Originally Posted by Tins

It's a "Hydraulic Damper". Apparently for the diesel only. I've wondered if it has anything to do with the bleeding issue.

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I did a clutch bleed on a Camry once with a damper fitted and it turned the job into a nightmare. Only solution short of incinerating the vehicle was a prolonged gravity feed.

Therefore, I would propose an emphatic "yes"!

I wonder what the damper achieves?
Seems like technology for technology's sake.
My Defender is OK without it.

Tony

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Originally Posted by TonyC

I wonder what the damper achieves?
Seems like technology for technology's sake.
My Defender is OK without it.

Tony

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Well, it certainly puts a damper on your mood if you have to bleed the clutch.

I wonder how much difference there is between the two vehicles, in the mechanical advantage of the cylinders and the fork. I would have thought none. And why is it only fitted to the diesels?

I suppose there could be some NVH reason.

The damper slows clutch release to avoid "dropping the clutch" inadvertantly. A lot of modern manual cars have one in the circuit.

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Originally Posted by reefmagnet

The damper slows clutch release to avoid "dropping the clutch" inadvertantly. A lot of modern manual cars have one in the circuit.

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Dunno if I'd call a 1994 D1 "modern".[bigrolf]