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Gear box oil radiator soaked in oil dripping out of the fans

Posted: Sun May 20, 2012 9:38 pm
by Buzza
After noticing a small oil drop on the drive, I looked under the engine to find the small gear box oil cooler at the bottom of the normal rad was absolutely smothered in red oil as if it was leaking from the fans, is this a common thing to happen?

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Sun May 20, 2012 9:38 pm
by Buzza
FINS not fans [-X :shock:

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Sun May 20, 2012 10:30 pm
by Simon Jones
You may be lucky and find its just the rubber hose that has a hole in, or the clips may be loose. Alternatively, it may be the whole radiator which needs to be replaced. The radiator is not particularly prone to damage by flying stones etc as the air conditioning unit sits in front which offers good protection.

If you can clean the area up, then hopefully you will be able to see where the leak is.

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Tue May 22, 2012 8:22 am
by Simon Jones
There is quite a good photo on this ebay listing that shows the two metal pipes as they enter the plastic lower section of the radiator. It is possible the metal pipes have become corroded or damaged, although I would still put my money on it being the hose or clip that's at fault.

http://www.ebay.co.uk/itm/Mazda-Bongo-2 ... 3f17d6d6b0

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Tue May 22, 2012 2:24 pm
by levon
If it is "red oil" is it transmission fluid?

The pipe joint on mine where it goes into the rad was a bit loose and had been leeking for a while and making the bits underneath messy. I fixed it but it happened again, so need to keep an eye on it.

The pipe goes int the back of the rad on the drivers side and any leakage goes down to the area mentioned.

Hope that helps and it is something simple.

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Tue May 22, 2012 9:34 pm
by Simon Jones
Gearbox oil is red, yes. The only other oily bits in the area is around the intercooler which does attract a lot of gunge from the turbo and EGR. Of course, it could be coolant, but that would look and feel different.

Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Fri May 25, 2012 12:37 pm
by Buzza
Thanks so much for your Replies. Ive been flat out at work so not had chance to look properly yet.

Ill try and get under it this weekend and fingers crossed it will just be a hose.

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Re: Gear box oil radiator soaked in oil dripping out of the

Posted: Fri May 25, 2012 12:46 pm
by Northern Bongolow
could be powersteering pipe/ pump leak or the rack. its under pressure so could squirt everywhere, and its the same colour.