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Old 31 January 2013, 13:03   #11
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I did my oil fill as follows .

Use warm oil this time of year.
Drill a m8 bit of screwed rod around 24mm long with a 3-4mm hole.
Wrap a bit of tape around most of the 24mm to fit oil bottle filler tight.
Screw into bottom fill/drain hole. (m8 on my motor).
Use football inflation nozzle needle and push into bottom of oil bottle.
Hold oil bottle as high as possible and blow air into bottle gently with bike pump.
Oil is pushed into gearbox with no effort until it flows from top ....

Water pump key should be remembered, that's all I think....?
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Old 04 February 2013, 05:15   #12
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Originally Posted by Clamchowder View Post
PS Thanks for that Dave. Dunno if you're aware but your website doesn't seem to want to load?

Actually it does load in the end, it's just reeeeaaaalllyyy slow!
Hi

Thanks and now fixed. oh we have also moved so note the new address and number.
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Old 05 February 2013, 03:15   #13
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Hi. I'm an inexperienced newish boater, and have been wondering for a while why the gear oil has to be filled from the drain hole?

Every car gearbox of differential I have worked on has always been filled from the level hole until overflowing.

How much oil do you loose whilst replacing the plug?

Thanks!
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Old 05 February 2013, 04:26   #14
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Quote:
Originally Posted by Danncus View Post
Hi. I'm an inexperienced newish boater, and have been wondering for a while why the gear oil has to be filled from the drain hole?

Every car gearbox of differential I have worked on has always been filled from the level hole until overflowing.

How much oil do you loose whilst replacing the plug?

Thanks!
Two reasons that I can think of:

Filling from the drain hole purges any trapped air through the vent as the oil forces its way up.

It would be really hard to fill through the vent hole as the air would need to escape through the same hole that the oil was going in through!

The vent plug is replaced before removing the hose from the drain hole. This has the effect of airlocking the gearbox so very little oil is lost fitting the plug.
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Old 02 March 2013, 12:35   #15
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So, I've replaced the impellor. Initially it didn't seem to have made any difference... tel-tale was still really weedy. So I took off the pipe that goes from the block to the tell tale hole and blew down it. Now it looks like this vid. It seems to be shifting water, it's just it's going out through a fairly big hole so it doesn't look as impressive as some people's (do I have tell-tale envy?). I'd be grateful for any reassurances though.

Also, there's quite a lot of 'shit' of various kinds under the hood. What's the best way to clean all this off? Get stuck in there with an oily rag? I'm guessing we don't want to be sloshing water around in there with the electrics.
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Old 02 March 2013, 12:46   #16
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Originally Posted by Clamchowder View Post
So, I've replaced the impellor. Initially it didn't seem to have made any difference... tel-tale was still really weedy. So I took off the pipe that goes from the block to the tell tale hole and blew down it. Now it looks like this vid. It seems to be shifting water, it's just it's going out through a fairly big hole so it doesn't look as impressive as some people's (do I have tell-tale envy?). I'd be grateful for any reassurances though.

Also, there's quite a lot of 'shit' of various kinds under the hood. What's the best way to clean all this off? Get stuck in there with an oily rag? I'm guessing we don't want to be sloshing water around in there with the electrics.
Are you running it in a test tank or on 'muffs'?
Some engines don't seem to get a good telltale on muffs, only in the tank.
I would recommend a purpose made spray degreaser thats safe on rubber and plastic, such as:

Yamalube Parts Cleaner - Multipurpose Degreaser - Aerosol | eBay

A toothbrush is great for Agitating the 'shit' whilst you wash it away with the cleaner.

Then protect with good old merc corrosion guard.

Your video is still proccessing so I can't comment on the tell tale vid.

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Old 02 March 2013, 14:10   #17
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Quote:
Originally Posted by Danncus View Post
Hi. I'm an inexperienced newish boater, and have been wondering for a while why the gear oil has to be filled from the drain hole?
Diffs have breathers, marine gearboxes don't!

Use a gear oil dispenser pump and you won't lose ANY.
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Old 02 March 2013, 20:29   #18
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Boink. Vid has finished processing now
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Old 02 March 2013, 20:35   #19
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Looks ok-ish. Here's mine (identical engine) running off a drum and muffs to give you a comparison. Mine's like a fire hose.

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Old 03 March 2013, 02:53   #20
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clean the rest of your pipes or if lazy buy salt x and run in for 30 minutes as yes it does look week.

Dave
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