P38A V8 coolant bleeding

Bagshot · Jul 24, 2020

Hi All,
Friend of mine has replaced his matrix o-rings (hero..!) and various cooling items and has asked me, over the phone, if there is a procedure for filling and bleeding the coolant system. I know there is a bleed valve on the Doozel, but is there anything special about the 4.6 Thor engine filling.?
Had a good search around but can't find anything mentioned.

kermit_rr · Jul 24, 2020

its all in rave but..
disconnect the bleed return from the top of the radiator to make sure its clear.
fill slowly, once the expansion tank gets full, put your finger over the bleed return hole in the filler neck and give the top hose a few good squeezes, then fill more, rinse, repeat until its full
run engine with the cap off until the thermostat opens, refill as needed, should be good to go

RangeRoller dt · Jul 24, 2020

^^^ he knows.
Done it many many times

Henry_b · Jul 24, 2020

Take the overflow pipe off the radiator, fill the header tank then squeeze the top hose and plug the overflow with a finger when releasing the hose so it sucks coolant in and blows air out when you squeeze the hose. Keep doing that until coolant comes out of the overflow (it'll take a while and you'll need to top the header up a few times). Then put the pipe back on and carry on only this time plug the hole in the top of the header where the jet of coolant comes back into the header. Eventually, you'll no longer be able to hear bubbles in the system and at that point you know you've got the air out.

Bagshot · Jul 24, 2020

Excellent everyone..thanks I'll pass this on.

Datatek · Jul 24, 2020

Helps on the diesel if the car is nose up, I suspect it may also help on the V8.

Mark Piercy · Jul 24, 2020

Datatek said:
Helps on the diesel if the car is nose up, I suspect it may also help on the V8.

Only if you take the v8 out and put a diesel in

kermit_rr · Jul 24, 2020

Mark Piercy said:
Only if you take the v8 out and put a diesel in

Wash your mouth out!

RangeRoller dt · Jul 24, 2020

With diesel not that lpg crap

kermit_rr · Jul 24, 2020

RangeRoller dt said:
With diesel not that lpg crap

That same lpg crap that doesn't produce enough emissions to register on an exhaust sniffer?

RangeRoller dt · Jul 24, 2020

Aye like a Volkswagen

kermit_rr · Jul 24, 2020

RangeRoller dt said:
Aye like a Volkswagen

Least lpg doesn't need to cheat

RangeRoller dt · Jul 24, 2020

Then put petrol in it as in owners manual.

Mark Piercy · Jul 24, 2020

Banter rally!!

Bagshot · Jul 24, 2020

RangeRoller dt said:
Then put petrol in it as in owners manual.

Go on son, get in there..!!!

RangeRoller dt · Jul 25, 2020

Don’t encourage me

Grrrrrr · Jul 25, 2020

Datatek said:
Helps on the diesel if the car is nose up, I suspect it may also help on the V8.

+1.

Sometimes it can be a bit of a sod. If you lift the bonnet with the cap off the expansion tank you can rev it to 2000 rpm and look through the crack under the bonnet and if the coolant drops, pop out and top it up. Should be stable after about 5 minutes.

P38A V8 coolant bleeding

Bagshot

Well-Known Member

kermit_rr

Very

RangeRoller dt

Well-Sprung Member

Henry_b

Think outside, no box required.

Bagshot

Well-Known Member

Datatek

Well-Known Member

Mark Piercy

Well fumbled member....

kermit_rr

Very

RangeRoller dt

Well-Sprung Member

kermit_rr

Very

RangeRoller dt

Well-Sprung Member

kermit_rr

Very

RangeRoller dt

Well-Sprung Member

Mark Piercy

Well fumbled member....

Bagshot

Well-Known Member

RangeRoller dt

Well-Sprung Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

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