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Old 14th October 2016, 09:17   #151
hpold
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I use a magic drain rod with a small brush on the end it's called the sink serpent and works a treat £2 i think I paid for it .
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Old 28th July 2017, 06:18   #152
Markpugh
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Default Plenum

Don't do a lot of miles cars on drive most of time .bought top half cover keeps water at bay
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Old 28th July 2017, 12:28   #153
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Quote:
Originally Posted by Markpugh View Post
Don't do a lot of miles cars on drive most of time .bought top half cover keeps water at bay
Mmmmmm...

Does the cover stay on when you do take it for a drive? Have you actually checked that the plenum isn't already full of water?....
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Old 28th July 2017, 12:31   #154
Jules
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Plenums can block even when car is not in use.

Have you seen my plenum shield kits

http://www.the75andztclub.co.uk/foru...ad.php?t=68328
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Old 1st December 2017, 18:55   #155
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I have cleaned the plenum on the CDTi I have just purchased. Sure enough there was water in the bottom but at least I caught it before it reached the ECU.

On my 260 I'm sure I had two drains in the plenum, the main one on the passenger side but there was also one under the servo on the drivers side. My new car has a rubber bung in this position (as far as I can see). Is this correct?

I did try pouring water in the drivers side and it will drain through the outlet on the other side but I just wanted to make sure this is all correct.
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Old 1st December 2017, 20:58   #156
Dorset Bob
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Quote:
Originally Posted by pugcrew View Post
........My new car has a rubber bung in this position (as far as I can see). Is this correct?

I did try pouring water in the drivers side and it will drain through the outlet on the other side but I just wanted to make sure this is all correct.
Yes, later Longbridge cars did have a rubber bung instead of the drain tube on the driver's side.
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Old 1st December 2017, 21:31   #157
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Quote:
Originally Posted by Dorset Bob View Post
Yes, later Longbridge cars did have a rubber bung instead of the drain tube on the driver's side.
Thanks for confirming that everything is fine!
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Old 4th September 2019, 08:29   #158
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Quote:
Originally Posted by Dorset Bob View Post
Yes, later Longbridge cars did have a rubber bung instead of the drain tube on the driver's side.
From your post then some of the earlier cars did have two drain tubes. Has anyone ever posted on here that BOTH tubes had got blocked ??

It could be that that many of the damaged ECU's could have escaped water damage with two drains rather than one.-
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Old 4th September 2019, 10:58   #159
Mark Murphy
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Very good information.
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Old 4th September 2019, 16:01   #160
Jules
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Quote:
Originally Posted by COLVERT View Post
From your post then some of the earlier cars did have two drain tubes. Has anyone ever posted on here that BOTH tubes had got blocked ??

It could be that that many of the damaged ECU's could have escaped water damage with two drains rather than one.-

You are confusing upper drains with lower drains.

ALL 75's have 2 lower drains.
From mid 2003ish the driver's side upper drain was replaced with a grommet.

The upper drains are not related to problems with ECU !
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Newbies do now!!
1. Plenum drains..all 3 or 4 year dependent
2. Cooling fan..All speeds functioning
3. Bonnet cable divider block
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