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Richard Greene
Frequent User Username: benzjag
Post Number: 223 Registered: 12-2012
| Posted on Wednesday, 23 September, 2020 - 09:21: |    |
One on my friends has a 80 Wraith. He does not have any heat. He cannot hear the servo running when he moves the lower & upper temp control from cold to heat. The lower water tap does not move in response to the dash setting. Any idea what would cause the servo not to work? Is there a fuse, etc.? I have never had a servo be totally "dead"! He wants me to look at it;therefore, any help is much appreciated! Richard |
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Robert J. Sprauer
Frequent User Username: wraithman
Post Number: 645 Registered: 11-2017
| Posted on Wednesday, 23 September, 2020 - 09:28: |    |
Section M within TSD4400 has a complete diagnostic flowchart. |
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Jim Walters
Frequent User Username: jim_walters
Post Number: 325 Registered: 01-2014
| Posted on Wednesday, 23 September, 2020 - 11:16: |    |
Pull the plug with two wires off the 44° sensor on the thermostat housing as a first check. It limits ACU operation until the coolant temp reaches 44°C. It often fails with age. SRH8505 SRC18015 SRE22493 NAC-05370 www.bristolmotors.com |
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steve mastus
New User Username: 66_mpw
Post Number: 4 Registered: 08-2019
| Posted on Friday, 25 September, 2020 - 16:50: |    |
Hi all, I am about to replace the rear valence on my 66 MPW . Mine was so far gone i am not sure how the exhaust exit was treated? Did it have a relief or a straight lower edge. In anticipation Thankyou. |
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Omar M. Shams
Grand Master Username: omar
Post Number: 2090 Registered: 04-2009
| Posted on Saturday, 26 September, 2020 - 06:08: |    |
http://ipocars.com/imgs/a/d/t/l/m/rolls_royce__1966_coupe_mpw_1966_3_lgw.jpg |
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David Gore
Moderator Username: david_gore
Post Number: 3791 Registered: 04-2003
| Posted on Saturday, 26 September, 2020 - 06:53: |    |
Here is Omar's image referred to in above post:
. |
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ross kowalski
Prolific User Username: cdfpw
Post Number: 1496 Registered: 11-2015
| Posted on Sunday, 27 September, 2020 - 09:41: |    |
Richard, Did you figure it out? |
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Richard Greene
Frequent User Username: benzjag
Post Number: 224 Registered: 12-2012
| Posted on Sunday, 27 September, 2020 - 14:01: |    |
Ross, Not looked at it yet. The owner is about a hour away. He might bring it over in a couple weeks! Richard |
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steve mastus
New User Username: 66_mpw
Post Number: 5 Registered: 08-2019
| Posted on Monday, 28 September, 2020 - 19:59: |    |
Thankyou all- If any body had a more detailed shot would be appreciated. However it looks like no exhaust relief. |
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Jim Walters
Frequent User Username: jim_walters
Post Number: 327 Registered: 01-2014
| Posted on Tuesday, 29 September, 2020 - 02:56: |    |
I have a MPW in the shop and there is no relief on it either, bottom of the rear valance is straight. SRH8505 SRC18015 SRE22493 NAC-05370 www.bristolmotors.com |