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Old 11 June 2005, 07:14   #1
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Tell-tale issues part II

I posted a few weeks ago saying there was nothing coming out of my tell-tale. I put a new impellor in, but still nothing happened. I have just had a look at the thermostat and I think the issue lies here, but I need clarification.

Image 1 shows what I could see when I took the cover off. The hole/channel that supplies water to the thermostat was blocked. I thought this was the problem, but even after unblocking it, it still didnt work.

Image 2 shows a rubber pump type thing which came out of the big hole. I understand this pumps water under the pressue of the exhast system through the tell-tale. The rubber around the edges on this looks knackered; there is a split in it too. This is now what I think the the problem is being caused by.

Image 3 shows the outside of the cover. There is a small hole in this (see pic) which water is now flowing out of. I assume this is a result of the kanckered rubber thing, as it lets the excess water drain.

Hopefully someone will be able to confirm my theory, and tell me everything will be alrite once I replace the rubber thing.....

PS. I may just have made a fool of my self and this isn't the thermostat at all...
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Old 11 June 2005, 07:22   #2
tue
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you are correct in your thinking. If the rubber diaphragm has split then it will chuck water out of the hole. It is quite a common problem on that type of thermostat housing. Also check the thermostat is opening by putting it into some hot water and checking it opens.
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Old 11 June 2005, 07:23   #3
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I have just confirmed to my self that this is the problem. I covered the hole with my finger and water then flowed out of the tell-tale. I now need to know what this thing is called.....

It would be great if someone could tell me the part number based on the following info:
Serial: 09925420
Year: 1996
Mariner, 40hp

Thanks
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Old 11 June 2005, 07:26   #4
tue
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it is a diaphragm. part number 8128871 6+vat Barrus have no stock at the moment so find a dealer with one in stock
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Old 11 June 2005, 07:39   #5
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Wonderful, thanks!
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Old 13 June 2005, 06:35   #6
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I've tried all the local suppliers and dealers and no-one has this part in stock. Is there anywhere that might have one that does mail order. Failing that, somewhere that holds a lot of spears in the Solent area which I could pick up from....
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Old 13 June 2005, 08:07   #7
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http://www.fairweathermarine.co.uk/

http://www.mbmarine.co.uk/home/home_frame.html

Andy
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Old 17 June 2005, 07:27   #8
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Try these guys:

http://www.gaelforce.net/

I used them once, after using American Marine imports for a while, AMI took 4 months to get me a screw, gaelforce got the same screw for me in 4 days... Talk about service! They are up in inverness, but post stuff out.. if you ever come up this way, great and MASSIVE store to jump into and spend tons of cash... Anyway, try phoning them
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Old 17 June 2005, 11:54   #9
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Quote:
Originally Posted by Tim M
I've tried all the local suppliers and dealers and no-one has this part in stock. Is there anywhere that might have one that does mail order. Failing that, somewhere that holds a lot of spears in the Solent area which I could pick up from....

Try American Marine 01675 442647, tell him Cookee sent you - it won't be any cheaper but it'll be a pint he owes me!
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When a boat looks that good who needs tubes!!!
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