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C900 clutch pedal linkage play affecting Cruise Control

My 1987 900 Aero is a RHD UK spec version.

Whilst running through the Bentley Cruise Control (CC) checks on Sunday (CC not functioning) I discovered the linkage to the slave(?) cylinder from the pedal on the passenger side of the car is very loose. Its quite competent, but this play could potentially mess up the settings, esp. electrical, of the CC pedal switch. i.e. if I accidentally knocked the pedal up, it could knock the pedal switch out and disable CC. The pedal switches are a git to get at, as I had to remove the knee board.

Question is, can the linking "u" connector on the slave cylinder be replaced easily? It seems to be all one piece or am I missing something here? should there be some play?

Bottom line is my CC stalk is not functioning correctly anyway but I can replace that and everything else seems to work, although there seems to be no test for the CC module itself, other than check supply and ground. I guess if everything else is functioning and it still doesn't work it must be the module.

Thanks

Al

P.S.Go my JT 61 K exhaust from Elkparts today, whoooeee it's a monster! Can't wait to get it fitted!

Reply to
Al
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Yep. The CC on my 1992 didn't work for years, until one day I got ambitious and re-soldered every contact on the CC circuit board. That fixed it! Well, it worked for a few weeks anyway. Maybe someday I'll get ambitious again and have another go at it.

John

Reply to
John B

I find that the switches on the brake and clutch need to be periodically repositioned. Also I have had to plug in the speed sensor on the back of the speedo a couple of times. this is accessed through the speaker grill.

Charles

Al wrote:

Reply to
Charles

It's the master cylinder, not slave.

The pin you're talking about can be replaced; but you can't buy one on its own. You either need to find a good used one, or buy a new clutch master cylinder.

Having said that, your chances of replacing it in situ without losing clutch fluid are very slim. As such, I'd take this opportunity to replace the master cylinder, or at least rebuild it with new seals.

Reply to
Grunff

Grunff yeah I was told by my auto electrician brother in law it was the slave, hence the (?) as it made more sense for it to be the master...

I don't think it's the pin, more the holes in the u-shaped bit of the link, but I haven't actually checked. If it is the pin I'll get one made for nothing by my lathe crazy Dad! If its the U link, I'll bodge it with correctly sized washers and epoxy. Not spending =A350+ for a bit of clutch play!

I haven't sourced a new cruise switch yet so it's pretty irrelevant in the grand scheme of things.

Thanks for the input, always appreciated.

Al

Reply to
Al

By pin I meant the rod with the bracket through which the 'pin' goes. This rod pushes the piston.

I wouldn't go down the washer route myself, unless you weld them on. I'd be more inclined to pick up a cylinder from a scrap yard.

And get the switch from said scrap yard at the same time as the cylinder :-)

Always welcome.

Reply to
Grunff

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