Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: TheBoy on 20 June 2007, 23:23:41

Title: Project Tractor
Post by: TheBoy on 20 June 2007, 23:23:41
Or whatever its called.

Now it has a gearbox (thanks to LB66, JV6CDX, Tunnie, and Ronnie), time to get back to its overheating issues.

As I really, really, really do not want to take head off (I think it may be beyond my limited abilities), and further ideas before I have to go down that route?
Title: Re: Project Tractor
Post by: Craig_R on 21 June 2007, 10:24:44
Have a bash at what we all said on Sunday Try and Run Her With The Grill Off to see if she drops in Temp By a Good Amount

Craig
Title: Re: Project Tractor
Post by: tunnie on 21 June 2007, 10:42:13
Quote
Have a bash at what we all said on Sunday Try and Run Her With The Grill Off to see if she drops in Temp By a Good Amount

Craig

We gave that a try, took the grill off and a run to Halse. It did run cooler apparently, but not by much.
Title: Re: Project Tractor
Post by: Marks DTM Calib on 21 June 2007, 11:33:03
Off with its head....
Title: Re: Project Tractor
Post by: Martin_1962 on 21 June 2007, 12:23:56
Remove the head and pull out the blockage
Title: Re: Project Tractor
Post by: TheBoy on 21 June 2007, 19:03:44
Quote
Off with its head....
:'(
Title: Re: Project Tractor
Post by: Auto Addict on 21 June 2007, 20:34:57
Quote
Quote
Off with its head....
:'(

Go for it, I'll give you a hand if you can wait a couple of weeks or so.
Title: Re: Project Tractor
Post by: JamesV6CDX on 22 June 2007, 07:39:47
Quote
Quote
Quote
Off with its head....
:'(

Go for it, I'll give you a hand if you can wait a couple of weeks or so.

Likewise...

Before I get cracking on my (hopeful!) project Elite Estate  ::)

(Maria don't read this....) ;D
Title: Re: Project Tractor
Post by: wombatcurry on 22 June 2007, 09:50:15
The overheating problem - I've not followed this one for some time due to problems at work - but I've recently read on a French site something about bad earthing causing high temperature readings - before tackling the head, are you sure that the problem is real and not sensor-related?
Title: Re: Project Tractor
Post by: Marks DTM Calib on 22 June 2007, 11:02:53
Ow yes, its real......live Tech2 readings (the ecu temp sensor does not use the 0V chassis connection) and the occasional appearanch of 'old Faithful' from the coolant tank cap
Title: Re: Project Tractor
Post by: wombatcurry on 22 June 2007, 12:29:38
Sounds like you're taking the head off then, I'd be very interested to know what you find in there when you get round to it..... Good luck
Title: Re: Project Tractor
Post by: Auto Addict on 22 June 2007, 14:36:22
Quote
Sounds like you're taking the head off then, I'd be very interested to know what you find in there when you get round to it..... Good luck

Valves? ;D
Title: Re: Project Tractor
Post by: TheBoy on 22 June 2007, 15:27:36
Quote
and the occasional appearanch of 'old Faithful' from the coolant tank cap
You are too kind to it. There is always some activity around the cap. Usually just hissing, but if I have been thrashing the nuts off it, coolant will pop out...
Title: Re: Project Tractor
Post by: pete1666 on 22 June 2007, 18:16:26
hi i have seen previous thread but  normally in my experience the water pump failing will dump
water after a good thrashing or thermostat failing to open enough.   you probably already
checked this but just a thought!!!
Title: Re: Project Tractor
Post by: smoothomega on 22 June 2007, 23:44:28
Hi Jaime, i know i have posted about this problem before but a thought has just come to me. Many years ago on a totally different car i remember that the expansion bottle had gone brittle and became pourous, it let out the pressure but not the coolant but it did push up the temp. It was only after a total engine replacement was the problem found. Just a thought. Also is the intercooler working as it should? if it has a hole in it and the engine is not getting the amount of air it needs and will make the engine run hotter.
Title: Re: Project Tractor
Post by: sassanach on 22 June 2007, 23:46:32
just rip the cylinder head off!!!!
Title: Re: Project Tractor
Post by: TheBoy on 23 June 2007, 10:26:13
Thanks for the replies :)

The waterpump, stat, and rad have been replaced with new items, and the expansion bottle replaced with one from a v6 (extra aperture blocked off). Puzzling.

Any further ideas before I resort to taking the head off?
Title: Re: Project Tractor
Post by: Auto Addict on 23 June 2007, 10:43:14
Before taking it for a run, drain the fluid, stand it in the fridge overnight, then refill.
Title: Re: Project Tractor
Post by: Auto Addict on 23 June 2007, 10:45:02
Forgot to add, as soon as it starts pressurising stop, let it cool down, then remove the head.
Title: Re: Project Tractor
Post by: JamesV6CDX on 01 July 2007, 10:04:37
Jaime, what's the plan?