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Posted

Hello.

 

I've got a 99 enter dbh35 chippit. Recently had the cooling system apart to gain access to a bearing, flushed radiator and new fluid, but I don't know if that has any bearing on my new problem as the machine has filled a good few trucks with chip since, and I'm sure I would have noticed if it had been pissing out pink bubbles each time...

 

anyway, coming out of my overflow hose on the rad I have coolant, and with the cap removed lovely pink bubbles everywhere. The coolant is the normal browny green and the level hasn't changed visibly, although I stopped work when I first noticed the puddle. The machine was working unusually hard (I didn't want to deal with loads of conifer cordwood) but I don't feel it was particularly hot when we noticed the leak.

 

Took it to a friendly garage where I twice tested for exhaust fumes in the radiator. The first time I did get a slight color change, but the second one time no color change.

 

It occurs to me now that the first time I may have been dumb enough to give the pippet a couple of test squeezes while standing in front of the chipper exhaust...

 

The rad cap seems in functional order, ie clean and moves on the spring.. I have yet to try flipping the rubber seal over incase the edges are tired.

 

It doesn't leak when turned off, so hard to see how I could have an air leak causing bubbles, unless it's only apparent when the rubber is warm?....

 

 

I was all set (and kind of looking forward) to replacing the head gasket, but what with the test results I'm now scratching my head.

 

When running, the coolant visible under the cap is gushing about like a high pressure hose held just under the surface of a pool, if that makes sense.

 

Has anyone got any pointers?

 

Thanks for any advice,

 

Michael

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Posted

Hi Michael

The best people to advise you on this issue is probably the original Kubota engine supplier to Entec.

Universal Engine who originally supplied the engine have a service support line on 08442092514 give them a call and they should be able to help.

Good Luck

  • 1 year later...
Posted

Hi just curious did you ever sort out the bubbles in the coolant

I have a en tec 30 dh just checked the coolant after starting the engine and discoverd bubbles, 

Thanks

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