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David Towers
Frequent User
Username: xtriple

Post Number: 70
Registered: 6-2010
Posted on Saturday, 10 December, 2016 - 09:52:   Edit PostDelete PostView Post/Check IP

Now that I am down to real fiddly little jobs on the old girl (having bankrupted myself on all the BIG jobs!) my thoughts have turned to the slight looseness in the drivers seat. It's a tad tricky to explain but it feels like there is wear in the fore/aft adjustment plane. Under acceleration the seat moves back a tad and when braking, the seat moves forward the same small amount. In the grand scale of things, it is very minor but as we are sooooo close now, worth investigating.

I asked Specialist cars and they don't know but are going to strip the seat and find out for me in January. This is great but I fear, an expensive way of going about it. I'm sure one of you fine chaps will know exactly what this problem is and inform me in moments... don't let me down guys :-)
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Omar M. Shams
Grand Master
Username: omar

Post Number: 938
Registered: 4-2009
Posted on Saturday, 10 December, 2016 - 15:07:   Edit PostDelete PostView Post/Check IP

Dear David,
When I used a Spur as my daily driver it also had the same problem. My Turbo R has it to a lesser extent. I found that you could flick the seat adjustment a tiny movement to take up the slack in the mechanism and that usually makes it better. You can try the flick in the forward direction and then in the aft to see which one has a better impact.
The alternative to this remedy is expensive.
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richard george yeaman
Grand Master
Username: richyrich

Post Number: 666
Registered: 4-2012
Posted on Saturday, 10 December, 2016 - 20:40:   Edit PostDelete PostView Post/Check IP

Hi David, Omar is giving you sound advice, unless you can do these irritating problems yourself you are heading in to another long Invoice that needs paying.

Richard.
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Christian S. Hansen
Grand Master
Username: enquiring_mind

Post Number: 446
Registered: 4-2015
Posted on Saturday, 10 December, 2016 - 20:50:   Edit PostDelete PostView Post/Check IP

.
What is being said is that the slop is caused by wear in the gear train that moves the seat forward and aft. Removing the lower seat squab and observing the function, especially if the slack in the system can been simulated by pushing on the seat fore and aft by hand, may help to locate or isolate the wear, and then you may at least be able to design some sort of workaround to "jam" the mechanism once in your desired position. The ability to observe the effect, locate the source of the slack, and apply a jamming workaround is your cheap fix.
.
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gordon le feuvre
Prolific User
Username: triumph

Post Number: 142
Registered: 7-2012
Posted on Sunday, 11 December, 2016 - 02:00:   Edit PostDelete PostView Post/Check IP

Omar is giving good advice. As I am 6'4" tall, lots of Spirit/Turbo cars I have driven exhibit this irritating "feature" It always seems to get worse near the limit of travel, whether forward/back or cushion height. This is apparent with low mileage cars/original owner, so the assumption is the mechanism has not had enough work to wear out. I have never really investigated the issue, but it always seemed to me that it is caused by "stack tolerance" That is a little bit in bush clearance/pivots/screws/clutch nuts that would be actually quite hard to identify. See if it still moves in the middle of travel-forward/back, cushion front up/down and rear up/down. hopefully this might pinpoint something with excessive wear compared with everything else!
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David Towers
Frequent User
Username: xtriple

Post Number: 71
Registered: 6-2010
Posted on Sunday, 11 December, 2016 - 21:58:   Edit PostDelete PostView Post/Check IP

Thank you guys. It sounds like I could be on a hiding to nothing (and not for the first time) trying to repair this. What I shall do as a long term solution then is: feed up my basset and train him to lay in the drivers side rear footwell to stop the seat moving! I have actually booked it in to the specialists to have this investigated in late January, may have to cancel...
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 1697
Registered: 6-2006
Posted on Friday, 16 December, 2016 - 03:49:   Edit PostDelete PostView Post/Check IP

Some of the gears are meshed with and eccentric fitting. loosening this and tipping it around can make the mesh tighter.

This was a big problem with the seat rake gears, but the seat base may be similar.

Had to adjust lots of sear rake gears in nearly new & low mileage cars as Gordon has mentioned.

You could feed a stocking into the gear . . . I don't think sawdust will work. ;)
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Patrick Ryan
Grand Master
Username: patrick_r

Post Number: 768
Registered: 4-2016
Posted on Friday, 16 December, 2016 - 06:53:   Edit PostDelete PostView Post/Check IP

David,

Did you try Omar's advice and give the seat adjustment a flick?

I have seen this work every time on many cars.
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David Towers
Frequent User
Username: xtriple

Post Number: 72
Registered: 6-2010
Posted on Friday, 16 December, 2016 - 10:11:   Edit PostDelete PostView Post/Check IP

I've tried that a load of times: it has always worked before on other cars with electric seats, of course, not on this one! It really isn't a big problem and now that I know it's endemic in the model I shall worry less... but not completely free of it. I haven't tried flicking the seat back adjustment just the fore/aft adjustment as that is where the play is.

Todays worry is: should I have sheets under the car cover when the car is in the garage?

I may take the seat base out myself and have a look if it ever stops raining - can't do it in the garage as there's no light and it is very dark in there. I get scared in the dark... :-)
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Patrick Ryan
Grand Master
Username: patrick_r

Post Number: 770
Registered: 4-2016
Posted on Friday, 16 December, 2016 - 10:23:   Edit PostDelete PostView Post/Check IP

Hi David,

Generally if the car is in a space where there is no wind, any car cover will do.
However if the car is in the wind and the car cover can flap, yes you will need either soft fleecy sheets against the paint, or a car cover with a fleecy underside.

A flapping car cover can remove ridge paint almost as quick as a sander.

Never use plastic as a car cover.

My cover is like a shiny nylon on the outside with a fleece type underside.
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David Towers
Frequent User
Username: xtriple

Post Number: 73
Registered: 6-2010
Posted on Friday, 16 December, 2016 - 20:45:   Edit PostDelete PostView Post/Check IP

So is mine Patrick. It's just the use of the sheets UNDER the cover I am now worried about.

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