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Author Topic: Jimbobs Coolant Leak  (Read 9812 times)

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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #15 on: 01 August 2007, 22:32:26 »
Paul, I will PM you an address.

As for the cap, its a VERy useful little bit of test kit so now way is it going any where, easy enough to make though!


Some furtehr update, not to much done tonight but, the coolant system is all re-fitted and re-filled with new dowty washers (of the correct type) on the coolant bridge. A pressure test revealed pressure held for 60 mins ok and no leaks......

Next job is sort the cam covers and re-assemble!

Ow yes, I fixed the crack of doom to....it was annoying me every time I opened the door.
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TheBoy

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Re: Jimbobs Coolant Leak
« Reply #16 on: 01 August 2007, 22:45:26 »
Additionally, I have a possible leak on MV6 - have topped up 3 or 4 times this year. HBV looks fine and water tight...
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #17 on: 02 August 2007, 06:17:27 »
Quote
Paul, I will PM you an address.

As for the cap, its a VERy useful little bit of test kit so now way is it going any where, easy enough to make though!


Some furtehr update, not to much done tonight but, the coolant system is all re-fitted and re-filled with new dowty washers (of the correct type) on the coolant bridge. A pressure test revealed pressure held for 60 mins ok and no leaks......

Next job is sort the cam covers and re-assemble!

Ow yes, I fixed the crack of doom to....it was annoying me every time I opened the door.

Success! Brilliant

That washer in the door is only 6 months old!
I did both cars, and they have both started cracking again in the last week or 2,
2 new washers were on my shopping list, they were either duff, or I installed em wrongly  :-/

Cheers
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #18 on: 02 August 2007, 07:09:53 »
Does / Did the Thermostat look ok?
I remember he struggled a lot there, was sort of glued on, some sealant (hylomar?) involved?
possibly a pipe going from there?

PLEASE excuse all my ignorance over all this, does the pressure test confirm it is water tight at running temperature as well? I know things expand / contract with heat / cool


Cheers


('no leaks' is a wonderful phrase to hear!)
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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #19 on: 02 August 2007, 08:20:36 »
Thermostat and bridge piece look fine, as does the coolant pipe to block seal and coolant plate.

Heres a pic of the route cause of the problem.



Note that its MUCH to large....and the mating lands on the head and coolant bridge are not huge.
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #20 on: 02 August 2007, 08:28:12 »
Doesn't look a very good fit, have you an 'after' pic as well?
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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #21 on: 02 August 2007, 08:45:51 »
I will try to get one when my replacements arrive (I keep these washers in stock!) but, the rubber seal section on the correct ones is much bigger and touches the shaft of the drilled bolt, the outer metal section is also smaller.
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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #22 on: 02 August 2007, 08:58:18 »
The biggest problem with the door straps was how loose the nut was......it was so loose I though I had the wrong sized socket...it un-screwed in my hand!
« Last Edit: 02 August 2007, 11:26:27 by Mark »
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #23 on: 02 August 2007, 09:43:38 »
well it was tightish, guess I should have had 3 shredded wheat that day  :-[
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Paul M

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Re: Jimbobs Coolant Leak
« Reply #24 on: 02 August 2007, 11:50:23 »
Quote
Paul, I will PM you an address.

As for the cap, its a VERy useful little bit of test kit so now way is it going any where, easy enough to make though!

Cool no probs! I may be able to borrow one from someone local I know who is a mechanic... very handy guy to know as he's got a manual 3.0 Elite which he's fitted Bilstein suspension to, I haven't had a shot in it yet but apparently it handles VERY well; he's already had it around the track at Knockhill. He's also replaced the thermostat on his Omega so should already know his way around the coolant bridge, oil cooler etc.

If I knew what I was doing I'd perhaps make a pressure cap for myself, but I don't know which is the air admittance valve and which the pressure valve, so I won't ;). Did you just get a schroeder valve from a tyre fitters?
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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #25 on: 02 August 2007, 11:55:12 »
Yep, schrader valve was on the floor at the local tyre fitters.
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #26 on: 02 August 2007, 19:00:41 »
Crack of doom also refixed on the CDX, deffo not enough Weetabix that day  :-[
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Marks DTM Calib

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Re: Jimbobs Coolant Leak
« Reply #27 on: 02 August 2007, 21:30:11 »
Ok, little more done tonight.

The breather bridge needs a new seal, its totaly mullered!

Breathers are cleaned and checked and passenger cam cover changed, cant do the drivers side because I dont have a good one yet!

Cooling system remained pressuried for 24 hours which is a good sign!

A question to Jimbob, when the oil cooler was chanegd was it due to failure and was the oil and filter changed after all the work was finished?
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #28 on: 02 August 2007, 22:09:33 »
The oil cooler hadnt failed, was done 'while we are there' just in case
The old one was on its way out, quite rusty

Think an oil and filter change were done, but am not sure?  Why?

Feel free to do one if needed, oil and filter in the boot
Ive also that much coolant, feel free to flush that as well if you want!
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Jimbob

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Re: Jimbobs Coolant Leak
« Reply #29 on: 02 August 2007, 22:17:37 »
Thinking back it DID have an oil and filter change with all the work
But do not know if it was done before or after the Gaskets, Spark Plugs and Oil Cooler.
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