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Author Topic: MV6 coolant leak (still)  (Read 7556 times)

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Kevin Wood

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Re: MV6 coolant leak (still)
« Reply #15 on: 29 March 2008, 13:53:29 »
I have a schrader valve I could lob in the post if you like - although a local tyre fitters would probably be able to give you an old one.

Cheers,

Kevin
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #16 on: 29 March 2008, 14:08:47 »
Quote
I have a schrader valve I could lob in the post if you like - although a local tyre fitters would probably be able to give you an old one.

Cheers,

Kevin
Its being able to seal it I guess, but still keeping pressure release valve in the cap  :-[
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #17 on: 30 March 2008, 11:43:39 »
Due to being late to meet Mrs TheBoy yesterday, the MV6 had a good exercising from Brackley to the SE side of Milton Keynes.

At  :-X mph, temp gauge = 90C, shooting up to 96C in traffic (fans then control), then back down to 90C once back up to speed.

Is the stat probably not fully closing?  Is it worth getting a stat, so once I've acquired a cap to pressurise the coolant to look for leaks, take plenum off and replace stat anyway?

Seeing as I had a hell of a job getting toop rad hose off transfer pipe, can I expect hassle getting the trasfer pipe off stat housing?
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Kevin Wood

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Re: MV6 coolant leak (still)
« Reply #18 on: 30 March 2008, 11:50:03 »
Was the coolant level low? Could be that it had a bit of an airlock under the stat, thus causing it to open a bit late?

I'd still say try to pressurise it, but might be worth removing the plenum anyway and having a look. It has been leaking for some time so I would expect some evidence to be visible.

If you're removing the stat housing, it would be silly not to replace it and the stat, especially as you may have to muller it to get it out by all accounts...

Kevin
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #19 on: 30 March 2008, 13:29:42 »
Quote
Was the coolant level low? Could be that it had a bit of an airlock under the stat, thus causing it to open a bit late?

I'd still say try to pressurise it, but might be worth removing the plenum anyway and having a look. It has been leaking for some time so I would expect some evidence to be visible.

If you're removing the stat housing, it would be silly not to replace it and the stat, especially as you may have to muller it to get it out by all accounts...

Kevin
Coolant never allowed to go so low that the bottle completely empties.

My question was, when I take the plenum off when I can do the pressure test, should I change the stat anyway?
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Dazzler

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Re: MV6 coolant leak (still)
« Reply #20 on: 30 March 2008, 16:33:56 »
May as well if its an unknown.
If your getting the stat and housing from Vx you will need new bolts as the new housings are thinner than the original and the bolts will bottom out, or you can cut the old ones down >:(
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #21 on: 30 March 2008, 22:19:03 »
Quote
May as well if its an unknown.
If your getting the stat and housing from Vx you will need new bolts as the new housings are thinner than the original and the bolts will bottom out, or you can cut the old ones down >:(
Yup, I'd get stat, housing, transfer pipe, bolts.  Anything else I need, eg seals?
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Markie

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Re: MV6 coolant leak (still)
« Reply #22 on: 31 March 2008, 13:10:53 »
Quote
Quote
May as well if its an unknown.
If your getting the stat and housing from Vx you will need new bolts as the new housings are thinner than the original and the bolts will bottom out, or you can cut the old ones down >:(
Yup, I'd get stat, housing, transfer pipe, bolts.  Anything else I need, eg seals?


Stat seal comes with it and also i think transfer pipe seal supplied with that
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #23 on: 31 March 2008, 21:09:55 »
Quote
Quote
Quote
May as well if its an unknown.
If your getting the stat and housing from Vx you will need new bolts as the new housings are thinner than the original and the bolts will bottom out, or you can cut the old ones down >:(
Yup, I'd get stat, housing, transfer pipe, bolts.  Anything else I need, eg seals?

Stat seal comes with it and also i think transfer pipe seal supplied with that
Thanks Markie :y
« Last Edit: 31 March 2008, 21:10:27 by TheBoy »
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #24 on: 02 April 2008, 19:20:19 »
Made up an expansion cap out of one of the many old ones I have (though it didn't work too well, so I've put a load of sealant in the cap to stop the cap leaking).  Aimed for about 12PSI, but couldn't maintain it as the modified cap kept leaking.

Can't investigate further for now, as its raining again (as it has been most of the day), and besides, need to wait for the sealant on the modified cap to go off.

Pictures of stat and as much of transfer pipe as I can get a camera near.  Does it look like this is the area where I have a leak?  I have steam from around PAS pump area intermittently, so was thinking stat area?







Thanks
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VXL V6

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Re: MV6 coolant leak (still)
« Reply #25 on: 02 April 2008, 21:05:45 »
Would there not be some staining around the area? There doesn't seem to be any evidence of coolant loss around that area :-/
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Darth Loo-knee

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Re: MV6 coolant leak (still)
« Reply #26 on: 02 April 2008, 22:15:59 »
Quote
May as well if its an unknown.
If your getting the stat and housing from Vx you will need new bolts as the new housings are thinner than the original and the bolts will bottom out, or you can cut the old ones down >:(

When I got a thermostat housing it didn't need new bolts....
I didn't need a transfer pipe either...
But you will need the 2 O rings Jaime that make the seal between the housing and transfer pipe :y
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markey mark

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Re: MV6 coolant leak (still)
« Reply #27 on: 02 April 2008, 22:18:14 »
could be transfer pipe cracked near mounting from when you fitted top hose jaime ??? :-?
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TheBoy

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Re: MV6 coolant leak (still)
« Reply #28 on: 02 April 2008, 22:43:36 »
Quote
could be transfer pipe cracked near mounting from when you fitted top hose jaime ??? :-?
Do they crack?
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markey mark

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Re: MV6 coolant leak (still)
« Reply #29 on: 02 April 2008, 23:04:46 »
oh yes snapped my lug clean off changing top hose !! ;D
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