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Re: RIP LE 1143
[Re: Flea]
#1083434
09/08/2010 11:24
09/08/2010 11:24
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Joined: Dec 2005
Posts: 6,568 Northampton England
Sedicivalvole
Club member 2092
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Club member 2092
Forum is my life
Joined: Dec 2005
Posts: 6,568
Northampton England
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^ Agreed.
Matt sounds like a partial blockage, i'll buy you a beer mate when I see you.
Vinci Grey LE Alfa 147 GTA 3.2 V6 BMW E92 M3 4.0 V8 Fiat Tipo Sedicivalvole 2.0 16v ABS
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Re: RIP LE 1143
[Re: MattM]
#1083700
09/08/2010 18:39
09/08/2010 18:39
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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Chin up Matt, I would take off a pipe and stick a hose in the tank and flush the rad... Then flush the engine doing the same.. Just catch the water in a bucket so you can see if any thing come out.
It's got to be a silly block sone where!!!
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Re: RIP LE 1143
[Re: MattM]
#1083789
09/08/2010 20:26
09/08/2010 20:26
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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Call me if you need a hand!!
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Re: RIP LE 1143
[Re: ]
#1083833
09/08/2010 21:12
09/08/2010 21:12
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MABR
Unregistered
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MABR
Unregistered
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For me the really positive thing here is that the vultures haven't started circling in case you decide to strip it back to standard. By a process of elimination, there can't be much else to check out can there? You've got a lot of support behind you Matt including some very knowledgeable "experts" but I can't begin to understand / appreciate your pain and frustration. Really hope that you find the problem and that it's a cheap fix to sort.
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Re: RIP LE 1143
[Re: ]
#1083869
09/08/2010 21:41
09/08/2010 21:41
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Joined: Mar 2007
Posts: 3,004 Leeds
MattM
OP
I need some sleep
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OP
I need some sleep
Joined: Mar 2007
Posts: 3,004
Leeds
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Well, I stripped the radiator off tonight, and it is like new really. I also ran water through the coolant system and checked coolant hoses and everything is fine. I found no "bits" of debris or anything which could cause a blockage. So, heres my theory; Circled in the above photo is the route which my braided oil cooler takes. As can be seen it runs right across the 3" downpipe. It is covered in heat wrap and there is a heat shield there too, but when on boost for a long period, that downpipe is going to be circa 900 degrees hot. What are the chances of the oil getting soooo hot, it's having an adverse affect on the engine/coolant and boiling it up?? This is the only thing left to try really. Opinions please
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Re: RIP LE 1143
[Re: MattM]
#1083914
09/08/2010 22:40
09/08/2010 22:40
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MattW
Unregistered
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MattW
Unregistered
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I doubt it to be honest, the water would only be exposed to that heat source for a fraction of a second as it rushes by, and couldnt be the difference between boiling up and staying normal. If it did have an effect it would be to raise the temperature by a couple of degrees overall but it would still stay stable. Simply running water through the pipes is no good, you need to replicate the high pressure and high flow rate that will be happening on track, and you cant check the insides of all the pipes without taking them all off and poking stuff through or cutting them open. I just hope the blockage is not in the waterways of the engine block itself, that could be a tricky one.
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Re: RIP LE 1143
[Re: ]
#1083920
09/08/2010 22:46
09/08/2010 22:46
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Joined: Mar 2007
Posts: 3,004 Leeds
MattM
OP
I need some sleep
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OP
I need some sleep
Joined: Mar 2007
Posts: 3,004
Leeds
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As i dont have an oil temperature gauge in the car (it's a really handy voltmeter ) i have no idea what kind of temps the oil is seeing. My theory was that if the oil is heating the block, that may in turn heat the coolant to above the tolerances which it would normally work within, i.e outside the tested coolant system parameters
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Re: RIP LE 1143
[Re: MattM]
#1083935
09/08/2010 23:00
09/08/2010 23:00
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MattW
Unregistered
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MattW
Unregistered
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As i dont have an oil temperature gauge in the car (it's a really handy voltmeter ) i have no idea what kind of temps the oil is seeing. My theory was that if the oil is heating the block, that may in turn heat the coolant to above the tolerances which it would normally work within, i.e outside the tested coolant system parameters Ah gotcha now, I think that's even less likely though. When everything heats up the oil is always the last thing to get hot, and the last thing to cool down afterwards. It basically follows the coolant temperature by about 5 minutes. For the oil to do that it would have to reach such high temperatures that it would be far too thin to do any lubricating... IMHO.
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Re: RIP LE 1143
[Re: MattM]
#1083943
09/08/2010 23:07
09/08/2010 23:07
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MattW
Unregistered
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MattW
Unregistered
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If the oil was going up to 130C+ you would definitely see a big drop in oil pressure. The cooling system is where you need to be focussing your attention.
Tell you what, I may be breaking a very nice Coupe at the end of the month, was going to fix it up with new big end bearings but it looks like I'll be buying my old Coupe back instead.
You can have the head, the thermostat, the water rail, and all the coolant pipes for free, which should be a major step in the process of elimination.
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Re: RIP LE 1143
[Re: MattM]
#1083964
09/08/2010 23:26
09/08/2010 23:26
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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Matt, when you flushed the engine, how did you do it?
Also the oil temp will be near 100 degrees or so to get 1.5bar on idle.
Could it be the turbo causing a block when it gets bloody hot??
Last edited by Marco20valveT; 09/08/2010 23:27.
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Re: RIP LE 1143
[Re: ]
#1083965
09/08/2010 23:29
09/08/2010 23:29
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Joined: Mar 2007
Posts: 3,004 Leeds
MattM
OP
I need some sleep
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OP
I need some sleep
Joined: Mar 2007
Posts: 3,004
Leeds
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Sorry Marco, but what do you mean by "glided the engine"?
I dont think it can be the turbo, as it has a seperate feed from the water jacket and then leads back to the bottom of the radiator, so even if it blocked up then the water would still circulate round the engine. ( i may be wrong)
edit: just seen that you meant flush the engine.
I removed the rad completely, put hose pipe into expanison tank and sealed round it, then just flushed with water. The expansion tank was filling faster than it was coming out, but i guess this will be vecause the pump is not spinning??
Last edited by MattM; 09/08/2010 23:32.
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Re: RIP LE 1143
[Re: MattM]
#1083974
09/08/2010 23:49
09/08/2010 23:49
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MattW
Unregistered
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MattW
Unregistered
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All you've done there is prove that it's not completely blocked, but if it was the engine would be toast anyway. It must be partially blocked somewhere which is only causing a problem at high revs / high flow rate.
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Re: RIP LE 1143
[Re: MattM]
#1084032
10/08/2010 08:15
10/08/2010 08:15
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Joined: Oct 2008
Posts: 6,783 In the coupe.
magooagain
Club Member 259
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Club Member 259
Forum is my life
Joined: Oct 2008
Posts: 6,783
In the coupe.
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You had a new water pump i think Matt.What about sealent gunk or anything you can think off stuck part way across a flow way. I also think the turbo cooling needs looking at as said by Marco.
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Re: RIP LE 1143
[Re: MattM]
#1084052
10/08/2010 09:08
10/08/2010 09:08
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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edit: just seen that you meant flush the engine.
I removed the rad completely, put hose pipe into expanison tank and sealed round it, then just flushed with water. The expansion tank was filling faster than it was coming out, but i guess this will be vecause the pump is not spinning?? Matt... when i flushed mine, the tank was just rushing water straight round the engine and out of the pipe... i think you have a block some where mate... problem you will have is the thermostat will not open untill its upto temp... you need to some how get the water straight into the engine.. not sure how i did mine.. it was well over 2 years ago now. but what i do know is with a rad pipe off the water should flow out pritty quickly..
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Re: RIP LE 1143
[Re: ]
#1084053
10/08/2010 09:12
10/08/2010 09:12
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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crazy idea...
why not put some thing in the coolant system to clear blockages... like Mr Muscle??
thinking about it, i doubt the turbo would be at fault.
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