Missing screw? What is this for?


Information and questions on GL1000 Goldwings (1975-1979)
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pierce
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Missing screw? What is this for?

Postby pierce » Mon Jan 23, 2012 10:42 pm



While replacing my fuel pump I noticed a screw/bolt hole that was emplty. It is just behind the fuel pump on the engine case.

Here is a photo of the hole (not my bike, but shows the hole clearly). Mine is empty, is this normal. What is it for?




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pierce
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Re: Missing screw? What is this for?

Postby pierce » Tue Jan 24, 2012 10:10 am

Got an answer.

On the off chance that anyone else begins to wonder about this apparently the case is identical and interchangeable on either side. When used on the left side that bolt hole would be used to attach the timing belt cover as it would face forward. In this case, it is left unused.

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dingdong
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Re: Missing screw? What is this for?

Postby dingdong » Tue Jan 24, 2012 5:18 pm

Also missing a screw on the fuel pump. ;) Before I scrolled down that is what I thought you meant.
Tom

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WingAdmin
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Re: Missing screw? What is this for?

Postby WingAdmin » Tue Jan 24, 2012 5:46 pm

dingdong wrote:Also missing a screw on the fuel pump. ;) Before I scrolled down that is what I thought you meant.


If this is the hole you mean, that's the fuel pump's weep hole. If the diaphragm fails in the fuel pump, fuel will leak out this hole instead of making its way down into the engine.

Fuel pump weep hole
Fuel pump weep hole

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pierce
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Re: Missing screw? What is this for?

Postby pierce » Tue Jan 24, 2012 7:38 pm

I meant the other hole, but now that you mention it, what is the function of the weep hole?

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Re: Missing screw? What is this for?

Postby WingAdmin » Tue Jan 24, 2012 9:18 pm

pierce wrote:I meant the other hole, but now that you mention it, what is the function of the weep hole?


Weep holes exist on pumps (i.e. fuel pump, water pump) to allow fluids to escape instead of going where they shouldn't. For instance, on the water pump, if the seal fails on the impeller, instead of forcing coolant into the crankcase oil (where it could do damage), it leaks out the weep hole instead.

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Re: Missing screw? What is this for?

Postby fysty-1 » Tue Jan 24, 2012 9:32 pm

WingAdmin wrote:
pierce wrote:I meant the other hole, but now that you mention it, what is the function of the weep hole?


Weep holes exist on pumps (i.e. fuel pump, water pump) to allow fluids to escape instead of going where they shouldn't. For instance, on the water pump, if the seal fails on the impeller, instead of forcing coolant into the crankcase oil (where it could do damage), it leaks out the weep hole instead.

GS he is refering to the "hole that is below the fuel pump & appears to be on the block. Look carefully @ his pic & you'll see. I have know idea. Angela:? :? :?


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