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Jean-christophe Jost
Experienced User
Username: jc_jost

Post Number: 64
Registered: 03-2016
Posted on Monday, 05 August, 2019 - 20:51:   Edit PostDelete PostView Post/Check IP

Dear mates,

This coolant tap, from SRH25085 was leaking, but not at the hoses junctions.

I assumed the o ring needs to be changed but where is it located ?

And also what other maintenance /testing can be done on this part ?

Thanks, have a nice day.

RR Silver Shadow I coolant tap
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Jean-christophe Jost
Experienced User
Username: jc_jost

Post Number: 65
Registered: 03-2016
Posted on Monday, 05 August, 2019 - 21:07:   Edit PostDelete PostView Post/Check IP

Sorry I've got the o ring location (see picture XB62203)

Still, are there other things to do while this part is removed (like lubrication or ..)

Thanks !
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Hubert Kelly
Frequent User
Username: h_kelly

Post Number: 359
Registered: 03-2012
Posted on Monday, 05 August, 2019 - 21:08:   Edit PostDelete PostView Post/Check IP

Hi Jean , check out this photo it may provide the clue ( I reckon your unit splits?.).
https://www.ebay.ie/itm/NEW-ROLLS-ROYCE-SILVER-SHADOW-HEATER-VALVE-UD12956/163760015787?hash=item2620db89ab:g:kasAAMXQROxRdmBg
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Jim Walters
Frequent User
Username: jim_walters

Post Number: 262
Registered: 01-2014
Posted on Tuesday, 06 August, 2019 - 03:51:   Edit PostDelete PostView Post/Check IP

It will most likely be the diaphragm inside that is shot. Buy a heater valve for an MGB, drill out the rivet that keeps the housing from turning on the base, twist the housing to split it and remove the diaphragm. Do the same with yours and reassemble it with the new diaphragm from the MGB one and save yourself 75.

SRH8505 SRC18015 SRE22493 NAC-05370
www.bristolmotors.com
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Jean-christophe Jost
Experienced User
Username: jc_jost

Post Number: 66
Registered: 03-2016
Posted on Wednesday, 07 August, 2019 - 00:25:   Edit PostDelete PostView Post/Check IP

Thank you very much for all advices.

I'll post here what happens next, in order to help on similar issues.

all the best!

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