Coolant Leaking When Refilling Cold Car - Weird One

[MayhemOfHell]

Hello there my fello H lovers.

I will try to keep this short and simple, But for me thats not how my brain works half the time.



---------- First of the history of the car (Stock Auto VP 1992 Exec With LPG) -------------
Going back about 16 months ago my thermo fan had stopped working one night and never noticed the temp gauge and hence blew the radiator.. Side seams burst and yea..

So bother were replaced and had no issues ever since then, Until i went for a drive of about 500kms out of town for a camping trip.

Same thing, The thermo failed.. well sort of... It still works but on the odd time you need to tap it or pre-spin it to get it cranking... So either way thats due to be replaced.

The temp got fairly high on the trip when i noticed it and since have kept it down and nothing has blown as such.
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------------------- Now what the fault is that i can best describe -----------------------
Currently the coolant was starting to disappear and this was not from the water pump as far as i could see... This was over a space of a few weeks of watching it... But basically drive it for 5 mins and lose 300ml or so...

In the last week or so the water pump has had a small gasket leak , not hole leak... but nothing compaired to what is lost.... or what is dribbling down the sump box.

So today i removed the water pump and to my surprise darwin has no gaskets available and couldnt find any gasket sheets either... So did the gasket goo gasket trick for now... just to hold a basic seal.. which works as needed...

----But now the strange part... could be simple, But i have not seen this before----
I have drained the cooling system and so forth and put everything back in properly.
So started to fill up the radiatior... But after it getting to about 2/3 rds full i could notice water coming from near the sump box.... Not the amount the water pump would dribble but about three/four times the amount...

This would start to do this with out the car running while it was cold, When car is running the amount is the same amount of loss... But i cant find any good info about the water jacket or engine drain plug as suggested in the manual...
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Is there something simple i am missing here that someone could point out, I have yet to jack the car up and remove things to get a better view.. Just seems a little odd.

The oil/coolant have not mixed and car runs normal.
The temp gauge will stay cold for awhile then move up to about the 3rd notch in normal idle/drive after about 10/15 mins... then starts to head to the 2nd to last notch...

I would normally spend my time looking for this fault, But living in darwin atm means that heat is an issue and work is more so as need money to live...

Any help or advice would be awesome here.... Please, Thanks in advance to all

Brad

[Cobez]

Possible welsh plug, or leaking hose / hose connection. Throw your car up on stands, get under it and have a really good look with an LED torch (they work a treat for spotting fluid leaks).

I had the same sort of problem. Was a loose ring clamp on a radiator hose, and one of the hoses hooked to the heater tap was loose. Pissed coolant down the front of the block, was filling it up at the start of the week, 4 days later the reservoir was empty.

I thought it was a cracked head or welsh plug. Thank **** it was neither.

[MayhemOfHell]

Why do i hate hearing welsh,

Just as i posted this, the whole heater/ac thing came to mind... so yea thats my next check...
cheers for giving me more hope on something simple...

[Cobez]

Yes, but i also said POSSIBLE! Always better to expect the worst and usually, it's nothing major, then you feel a whole heap better

Could be your top radiator hose leaking, pissing coolant out down the side of the block and dripping off the back somewhere. Or from looking underneath the car without getting under there, it may look like it's coming from somewhere else.

[MayhemOfHell]

oh trust me, i expect the worst...
because i have never needed the mech unless it is the worst...
and starting to look that way....

[Cobez]

Have a squizz and check back with info

[MayhemOfHell]

Okay, something else i have found in the mean time...

Now forgive me here as i dont know the v6 to well... use to the old 202..

first of the pics... four of them...

The hole/engine/block/thingy...


The hose it connects with, old tube inside still


The in between part


Where it is located


Now basically i jacked the front of the car up just to allow a little more head room,
in that process i saw a little water coming from this problem... not all the water accounted for yet....

So moved the hose a little to check to see if was seeing things and snap! F*@&
So my question is now, What is this... It has a single bolt holding it in.

It being broken is not the main concern as i can fix or replace it... But in the whole there is still what looks to be about 5mm left of it still stuck inside.

This is connected to a round cyclinder with a spring loaded button that is todo with the gas i beleive... sorry... been running around doing 20 other things.... Can i just force the other remainder out and flush the system.
Does the remainder have a thread on it?

[MayhemOfHell]

If you need any more pics, let me know...

[Cobez]

Hmmm, not sure what that is man, can't help you there.

[Cheap6]

Just pull out what is left in the manifold and the hose, clean up the manifold and replace the part with a new one from a dealer. Also use a new 'O' ring and a new hose clamp is pretty cheap. It's not easy to determine the condition of the hose from pics but consider replacing that also. Bleed the cooling system and use coolant suitable for a Commodore V6.

The manifold may be corroded enough to affect the seal with the 'O' ring so you might have to use some sealant - Ultra-Blue or similar - but avoid that if you can.

The round thing with the spring loaded button is the gas converter - the coolant heat ensures that the LPG is completely vaporised.

You also need a new accessory drive belt .

[MayhemOfHell]

yea the belt i know about... its got the v cracks so will last til i get this sorted out. and if belt goes... well everything does as is a single belt for it all. good and bad

Do you know what the name of that part is..?
In the process of removing the remains as being careful not to screw anything up in the process, the hose is all good. Just the rubber/plastic connector was well... deteriorated.

Im guessing its a modified/non standard manifold to simply allow another hose source?
Sorry, just like to know for future and all.


cheers again guys

[MayhemOfHell]

also hopefulyl this will be a good post for others with lpg and the same issue.

[delcowizzid]

its a standard fitting all series 2 engines have them theres another one at the rear of the manifold as well off to the wreckers for a spare

[MayhemOfHell]

Sweet, At least i know now what i am looking for and how to find two if be...
nothing like keeping a spare of some of the more likely to break stuff... tho this one was pretty bad...

So these parts are'nt available at the usual places. I still prefer new... and in the case of this one... i want it new as they look like they age easily in darwin

[Cheap6]

You might want to do that belt now, with the hoses off and the coolant already lost, as you might not be able to replace the belt without also removing the hoses (again) as they look like they pass through the centre of the belt loop.

[MayhemOfHell]

No hoses have to be removed to replace the belt, Just move the tension wheel and the belt slips right off.
The belts on these engines require nothing at all removed to change then, But the current belt will still last for awhile as its only V-cracks. They are about mid way aging of the belt.

wish i could find a part number for that rubber fitting

[vpete]

Hey MOH, just take what is left into the holden dealer and get a new one. It is a bakerlite type stuff which deteriorates over time. I just replaced one last week, $5.50 for part & $6.95 for o'ring. Don't ever use second hand ones of these or it will end in tears as they break easily when disturbed!

Cheers...........................Pete!

[MayhemOfHell]

hey vpete, do you know the part number or name? holdens have sent me a screen shot of the area but all they have listed is the o ring and clamps... lol.

I will be going there soon but gotta bike it... and im not fit ne more as well love my car.

cheers for the heads up tho, the darwin holden guy chris is really helpful. their diagram software is not

[MayhemOfHell]

and yea didnt want second hand no matter what, I hate second hand parts unless they are solid metal that i can inspect throughout

[MayhemOfHell]

Okay, jsut been for a bike ride to holdens. Its like 3 or 4 k away and im stuffed.... ahhh, aircon.

Now just while i remember, The price and codes...

GM-92061300 = Connector Cool = $11.00
GM-24500321 = Ring HTRIN PPE = $14.06

[supercharged.hilux]

i did that same part when replacing headgaskets . i tightened the hose clamp on that joiner that connects the intake manifold to the top of the water pump ...im guessing just a return hose or something ...and because it was perished i crushed it a little just enough to leak so when i finally found the prob i moved it slightly to see if id forgotten to tighten it and snap....just flick the busted in bit out with ascrew driver and go get one from holden over the counter genuine for $9