306 tu 1.4
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Discussion

dazzabaker2010

Original Poster:

9 posts

96 months

Friday 13th April 2018
quotequote all
hi all i was wishing for some help i have a 306 tu engine 1.4 it had a leek in the rad on the m40 i got it home ok it over heated so i stop the car and fill it up again so i put a new radiator in it ever since that it. will all ways over heat so i look it some where and thay checked it and thay said yep it the head gasket so i got all the pats new head gasket set new water pump and timing belt and 3 new thermostat new antifreeze got the head skim put it all back toghter on it doing the same thing as before just over heating more on going up hill so i re bleed it with the coke bottle trick but the same so i took the thermostat out and it run fine not i dont get any hot air in the cap when on a long run ony get hot air when it ticking over so i put a nother thermostat in thinking it will be ok now but it still the same ive had ppl looking at it thay dont know what it cued be so plz can some one help

GreenV8S

30,999 posts

308 months

Friday 13th April 2018
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dazzabaker2010 said:
ive had ppl looking at it thay dont know what it cued be
Get somebody competent to look at it. It should be straight forward to work out whether the head gasket is intact and whether the coolant is circulating through the engine and radiator properly and whether the radiator is cooling the coolant effectively.

And for goodness' sake learn to use punctuation.

dazzabaker2010

Original Poster:

9 posts

96 months

Friday 13th April 2018
quotequote all
ok will ive had ppl looking at it. and thay dont know. so that why i came here!

GreenV8S

30,999 posts

308 months

Friday 13th April 2018
quotequote all
dazzabaker2010 said:
ok will ive had ppl looking at it. and thay dont know. so that why i came here!
Well, my advice is still to have somebody competent investigate methodically. It should be straight forward to test the temperatures and flows through the engine and radiator and work out why the cooling system is ineffective. If the ppl you've had looking at it haven't been able to find the fault, either they weren't trying or they weren't competent.

dazzabaker2010

Original Poster:

9 posts

96 months

Friday 13th April 2018
quotequote all
someone look at it and said it might be a cracked head but as i said it was happing be for the i did all the work

Edited by dazzabaker2010 on Friday 13th April 16:00

GreenV8S

30,999 posts

308 months

Friday 13th April 2018
quotequote all
dazzabaker2010 said:
someone look at it and said it might be ...
Was that somebody competent who had found evidence suggesting it was a cracked head, or just somebody spouting ideas off the top of their head? There are well known ways to test for cooling system leaks, head gasket failure, cracked head/block castings etc. This isn't rocket science - just get somebody competent to actually investigate the problem and they should have no difficulty diagnosing it.

dazzabaker2010

Original Poster:

9 posts

96 months

Friday 13th April 2018
quotequote all
lol u got a pont but it trying to find some one who good and all i do is spend money for ppl to say thing

Penelope Stopit

11,209 posts

133 months

Friday 13th April 2018
quotequote all
When using the coke bottle did you fill it to the top as you should have, did you run it up to fully warmed up and did you open each bleeder in turn when it was hot, you can also squeeze the top hose to get some air out through the bottle and water into the top hose
Why I ask is because it sounds like a possible air lock and 306's are a proper pain to bleed
Get it hot so that the thermostat opens while using the coke bottle, if the top hose isn't hot then there is no water around the thermostat to heat and open it
You can only bleed it when the stat has opened, you can also get the front end up a bit on a hill or some ramps if need be

dazzabaker2010

Original Poster:

9 posts

96 months

Friday 13th April 2018
quotequote all
hi Penelope Stopit i was out there from 6pm to 8 , yh i fill it up and i got car fast idle 3000 rpm with the coke bottle fill up and i was watching it and bleeding it but no air and there was no bubble coming up in the the bottle and the fan was kicking in and out it was not getting past 90 at fast idle so i gave it a good run on the a23 for 40min and the temp was getting up in to the red when i was doing 70 and if i kick it to 80 then it will go pretty much in the red and all what u said i have done!! part from the hill? trick

Penelope Stopit

11,209 posts

133 months

Saturday 14th April 2018
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Does the water level drop after a run? If the water level is dropping there is a possibility that the heater matrix is leaking or there is a problem with the new head gasket

M_A_S

1,441 posts

209 months

Saturday 14th April 2018
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What was the location of all the bleed screws you found?

mighty kitten

431 posts

157 months

Saturday 14th April 2018
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Should be two bleeds , one on the heater pipes going into the bulkhead and a brass 5 or 6mm Allen head bolt on the side of the head near the stat housing

dazzabaker2010

Original Poster:

9 posts

96 months

Saturday 14th April 2018
quotequote all
hi all thank for geting back to me and no after a run it dont drop at all? and as mighty kitten said one on the heater pipes going into the bulkhead

but it funny ive been driver about to day as it been a nice day and around town it be at 90c and then on the high way it will go up to about 98 may be 99 in i go over 70

mighty kitten

431 posts

157 months

Saturday 14th April 2018
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There is another one in the head , it’ll have air in if you haven’t bled it

dazzabaker2010

Original Poster:

9 posts

96 months

Sunday 15th April 2018
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waht the one in the thermostat housing is so yh ive done that one as well, so i have done all 3 off them ?