Login | Register
SearchMy Stuff
My ProfileMy PreferencesMy Mates RSS Feed
Reply to Topic
Author Discussion

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Thursday 5th July 2012 quote quote all
Just a quick question,

had a play in the chim yesterday water temp went up to around 95ish, brought car home and checked oil and water found the expansion bottle still cold, i could unscrew the top and dip my finger in the coolant was freezing cold, both hoses on the rad vey hot so too was the swirl pot, tried to take the brass screw off the pot when cool and cannot budge it is this normal?

Cheers Rob

haircutmike

10,607 posts

91 months

[news] 
Thursday 5th July 2012 quote quote all
Rob.

Brass screw is easier when hot, just loosen it then!

The expansion will only receive hot water when the engine is very hot and the water expands.

95 is a bit high if the gauge is accurate. Check if the fans come on, I had a connector on the otter switch fall off once!

If fans come on, all the hoses are hot and the expansion bottle has a couple of inches in it when cold, all should be well.

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Thursday 5th July 2012 quote quote all
just had a play with the car, taken the expansion cap off and run the car up to temp fans cut in, didnt make any diffrence no bubbles or heat from the bottle at all is this correct i was expecting the water to bubble up

Rob

JonathanT

800 posts

171 months

[news] 
Thursday 5th July 2012 quote quote all
I would suggest that no bubbles is a good thing - this suggests that you have no air pockets in your cooling system.... Or the pipe/connectors between the swirl pot and expansion bottle is blocked.

I would expect the level of water in the expansion bottle to go up slightly (due to expansion of water in the cooling system)?

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Thursday 5th July 2012 quote quote all
dont think the water level moved at all, im thinking its blocked too

Rob
Advertisement

JonathanT

800 posts

171 months

[news] 
Thursday 5th July 2012 quote quote all
try opening the expansion tank and squeezing the top hose that leads into the swirl pot. That will show if the pipe between the two is blocked or not.

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Thursday 5th July 2012 quote quote all
the pipe is blocked, think i have a job to do tonight, so how much water should be in the swirl pot when i manage to remove the brass bolt, full to the brim or just under?

cheers Rob

V8 GRF

6,804 posts

97 months

[news] 
Thursday 5th July 2012 quote quote all
Flyin Banana said:
the pipe is blocked, think i have a job to do tonight, so how much water should be in the swirl pot when i manage to remove the brass bolt, full to the brim or just under?

cheers Rob
Full I believe is the correct level for the swirl pot. The expansion tank finds it's own level and can vary from half full to just an inch in the bottom.

haircutmike

10,607 posts

91 months

[news] 
Thursday 5th July 2012 quote quote all
V8 GRF said:
Full I believe is the correct level for the swirl pot. The expansion tank finds it's own level and can vary from half full to just an inch in the bottom.
Correct.

Bassfiend

4,674 posts

137 months

[news] 
Thursday 5th July 2012 quote quote all
haircutmike said:
V8 GRF said:
Full I believe is the correct level for the swirl pot. The expansion tank finds it's own level and can vary from half full to just an inch in the bottom.
Correct.
Seconded ...

Phil

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Friday 6th July 2012 quote quote all
thanks Guys, all sorted took the car out yesterday before the rain and didnt get the temp above 85

Rob

Tyre Tread

7,441 posts

103 months

[news] 
Friday 6th July 2012 quote quote all
Rob, did you checke whether the tube at the bottom of the expansion tank was blocked? Mine was and I had to run a drill bit through the corrosion to clear it. Definitely worth checking and easy to do by removing the hose from the bottom amd see if the coolant runs out. Mine didn't!

Flyin Banana

Original Poster:

2,060 posts

125 months

[news] 
Friday 6th July 2012 quote quote all
Tyre Tread said:
Rob, did you checke whether the tube at the bottom of the expansion tank was blocked? Mine was and I had to run a drill bit through the corrosion to clear it. Definitely worth checking and easy to do by removing the hose from the bottom amd see if the coolant runs out. Mine didn't!
yeah checked, mine was blocked both ends expansion and swirl pot, i used a small screwdriver and a hammer !! job done

cheers Rob

haircutmike

10,607 posts

91 months

[news] 
Friday 6th July 2012 quote quote all
I'me going to check mine tomorrow justin!
Reply to Topic