Gearbox servicing.

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jpsh120
Posts: 321
Joined: Mon Feb 21, 2011 10:37 pm

Gearbox servicing.

#1 Post by jpsh120 » Tue Jul 26, 2016 11:00 am

The gearbox in my Rapier is in need of some TLC so if anyone can recommend a place to use please let me know.

I'm based in Yeovil, Somerset but happy to travel (within reason) for somewhere good.

Thanks :thumbs:
1971 Sunbeam Rapier H120

rich.
Posts: 6804
Joined: Wed Jan 05, 2011 9:18 pm

Re: Gearbox servicing.

#2 Post by rich. » Tue Jul 26, 2016 12:53 pm

i think these guys rebuilt the gearbox on my old fourtrack.. i was happy with the result..
http://www.autotransgloucester.co.uk/

GHT
Posts: 1523
Joined: Mon Jan 26, 2015 3:09 pm

Re: Gearbox servicing.

#3 Post by GHT » Wed Jul 27, 2016 1:50 pm

You could try The Rapiers Owners club, even if you are not a member there's usually a forum with tips from members. You will probably find someone with a car like yours that's had similar work done, from whom you can glean the information that you need. Other than that, Rich's link isn't that far from you.

davec
Posts: 4
Joined: Sun Sep 22, 2013 2:07 pm

Re: Gearbox servicing.

#4 Post by davec » Wed Jul 27, 2016 7:14 pm

Exeter gearbox centre not too far either.

Flatlander
Posts: 96
Joined: Mon Apr 06, 2015 10:31 am

Re: Gearbox servicing.

#5 Post by Flatlander » Thu Jul 28, 2016 11:08 am

jpsh120 wrote:The gearbox in my Rapier is in need of some TLC so if anyone can recommend a place to use please let me know.

I'm based in Yeovil, Somerset but happy to travel (within reason) for somewhere good.

Thanks :thumbs:
Is it by any chance jumping out of second gear?

Incidentally, in case you are not aware, the H120 gearbox differs internally from all others of the same era, apart from the Hunter GLS.

jpsh120
Posts: 321
Joined: Mon Feb 21, 2011 10:37 pm

Re: Gearbox servicing.

#6 Post by jpsh120 » Fri Jul 29, 2016 9:12 am

Thanks guys. I am a member of the owners club and part of the forum but it's quite quiet on there so thought I would throw my net a bit wider. I've already phoned a couple of places who both told me the car is too old and too difficult to get parts for!

It doesn't jump out of gear, it's just very noisy at idle in neutral.
1971 Sunbeam Rapier H120

Flatlander
Posts: 96
Joined: Mon Apr 06, 2015 10:31 am

Re: Gearbox servicing.

#7 Post by Flatlander » Fri Jul 29, 2016 9:16 am

jpsh120 wrote:It doesn't jump out of gear, it's just very noisy at idle in neutral.
Does it quieten down as the revs increase?

jpsh120
Posts: 321
Joined: Mon Feb 21, 2011 10:37 pm

Re: Gearbox servicing.

#8 Post by jpsh120 » Fri Jul 29, 2016 10:40 am

Flatlander wrote:
jpsh120 wrote:It doesn't jump out of gear, it's just very noisy at idle in neutral.
Does it quieten down as the revs increase?
No, only when you depress the pedal does the noise go away.
1971 Sunbeam Rapier H120

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Luxobarge
Posts: 1898
Joined: Wed Jan 05, 2011 3:12 pm
Location: Horne, Surreyshire

Re: Gearbox servicing.

#9 Post by Luxobarge » Fri Jul 29, 2016 11:09 am

jpsh120 wrote:No, only when you depress the pedal does the noise go away.
Sounds like clutch release bearing to me, might be nothing much wrong with the gearbox at all?
Some people are like Slinkies - they serve no useful purpose, but they still bring a smile to your face when you push them downstairs.

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JPB
Posts: 10319
Joined: Fri Jan 07, 2011 3:24 pm

Re: Gearbox servicing.

#10 Post by JPB » Fri Jul 29, 2016 11:43 am

Luxobarge wrote:..Sounds like clutch release bearing to me, might be nothing much wrong with the gearbox at all?
+1.
Maybe the carbon has come loose in its carrier or, if it has the Laycock clutch (identifiable by its diaphragm style cover), the plate that's attached to the edge of the diaphragm fingers (to present a smooth surface to the carbon) has been known to work itself slack, this is taken up when the pedal is pressed and the pad contacts the cover.
If the clutch in this case is the Borg & Beck variety (identifiable by its coil spring cover), then uneven heating of the springs can cause the thrust pad to come off in a slightly skewed position so that the carbon only touches at one spot on initial contact but is flattened when the pedal is fully depressed.
J
"Home is where you park it", so the saying goes. That may yet come true.. :oops:

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