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#1 | ||
Regular Member
Join Date: Dec 2017
Posts: 37
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I have coolant leaking at the back of the AU2 XR8 - any clues?
Thanks, Wasim |
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#2 | ||
FF.Com.Au Hardcore
Join Date: Jul 2011
Location: Serpentine W.A.
Posts: 1,639
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possible welch plug behind the trans on back of engine block
__________________
XC GS OLD SCHOOL MUSCLE ![]() Audi A4 S-line quttro Xc falcon Previous fords- xc falcon 500 ,250 x flow 3 speed xc gs worked 250 x flow 4 speed xa Fairmont 302 auto wagon xb falcon 250 log auto 4 door xb falcon 200 log auto ute xc gs project - had to sell :-( xc gs 302 4 speed 4 door xc gs 351 auto 4 door zf fairlane 302 auto zk fairlane 250 x flow carb auto zl fairlane 250 x flow EFI auto xg ute , BA falcon dedicated gas xd, xf x 3 ,ea,eb,ef,au x 3,telstar tx5 |
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#3 | ||
Regular Member
Join Date: Dec 2017
Posts: 37
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That means the removal of the motor to fix or is there a couple of tricks I could try first?
Thanks |
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#4 | ||
Regular Member
Join Date: Feb 2010
Location: Melb
Posts: 167
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Heater tap, they are plastic and go brittle
Coolant leaks from the water pump/timing cover area can also run along the sump rails and show up at the back |
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#5 | ||
FF.Com.Au Hardcore
Join Date: Jul 2011
Location: Serpentine W.A.
Posts: 1,639
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Get your hands on a pressure tester this way you will be able to find it easier.
If it is the welch plug behind the trans then its a trans removal.
__________________
XC GS OLD SCHOOL MUSCLE ![]() Audi A4 S-line quttro Xc falcon Previous fords- xc falcon 500 ,250 x flow 3 speed xc gs worked 250 x flow 4 speed xa Fairmont 302 auto wagon xb falcon 250 log auto 4 door xb falcon 200 log auto ute xc gs project - had to sell :-( xc gs 302 4 speed 4 door xc gs 351 auto 4 door zf fairlane 302 auto zk fairlane 250 x flow carb auto zl fairlane 250 x flow EFI auto xg ute , BA falcon dedicated gas xd, xf x 3 ,ea,eb,ef,au x 3,telstar tx5 |
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#6 | ||
Regular Member
Join Date: Dec 2017
Posts: 37
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Thanks for the replies - water pump and heater tap has already been replaced - so I guess its a trans out job now.
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#7 | ||
FF.Com.Au Hardcore
Join Date: Jul 2011
Location: Serpentine W.A.
Posts: 1,639
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Like I said previously I would pressure test the system first as you dont want to drop the trans if you dont have to. its possibly a back welch plug on side of block running back then dripping , unless you can see the coolant coming out between bell housing and block ?
Good luck they are a pain to drop in a drive way.
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XC GS OLD SCHOOL MUSCLE ![]() Audi A4 S-line quttro Xc falcon Previous fords- xc falcon 500 ,250 x flow 3 speed xc gs worked 250 x flow 4 speed xa Fairmont 302 auto wagon xb falcon 250 log auto 4 door xb falcon 200 log auto ute xc gs project - had to sell :-( xc gs 302 4 speed 4 door xc gs 351 auto 4 door zf fairlane 302 auto zk fairlane 250 x flow carb auto zl fairlane 250 x flow EFI auto xg ute , BA falcon dedicated gas xd, xf x 3 ,ea,eb,ef,au x 3,telstar tx5 |
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#8 | ||
Drive'n Cruise'n Live'n
Join Date: May 2013
Location: Western Sydney
Posts: 916
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There is no welsh plug in behind the bell housing area of a Windsor excluding the camshaft bore rear plug which seals oil only. I would check the heater valve and hoses, rear end of inlet manifold as well as any welsh plug if fitted to rear of heads. Hoses can have a tendency to leak at the onset of colder weather as the rubber contracts and loses a little flexibility.
Cheers |
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#9 | ||
FF.Com.Au Hardcore
Join Date: May 2013
Posts: 539
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XC50077,
I have the same problem, coolant leaking from between the block and bellhousing, there is conflicting information about the 220 Windsor’s having the welsh plug at the rear of the block. Recently Ford had confirmed there is a welsh plug at the rear, however some members on the forum aren’t convinced. Can someone please confirm and provide some type of factual evidence. Regardss |
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#10 | ||
FF.Com.Au Hardcore
Join Date: May 2016
Posts: 1,823
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Gents,
I wandered out into the shed to look at a 5.0 efi windsor out of i believe a f truck sitting on an engine stand and it apears to have a large brass plug of the same construction as the plugs on the sides of the block but larger. It is surrounded by screw in plugs could this be your culprit? |
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#11 | ||
Drive'n Cruise'n Live'n
Join Date: May 2013
Location: Western Sydney
Posts: 916
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The large welch plug in the rear, centre of the block seals the camshaft bore, the other screw in plugs are the oil gallery plugs.
Coolant running down rear between cyl head and block could be a small leak from the intake manifold. Cheers |
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#12 | |||
FF.Com.Au Hardcore
Join Date: May 2013
Posts: 539
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Quote:
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#13 | ||
Regular Member
Join Date: Feb 2010
Location: Melb
Posts: 167
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I've always had good luck finding coolant leaks with my hands. Feel around any suspect areas (especially botton of hoses near connections) then look for coolant on your fingers. A bright LED flashlight is good too as it makes the green dye stick out like dogs balls.
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