What is this hole on the accessories case on a 220 just below the tach cable?

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TDezso
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What is this hole on the accessories case on a 220 just below the tach cable?

Postby TDezso » Wed Jan 11, 2017 7:59 pm

What is it for, is it a vent, is it supposed to be covered, and can I tap it and plug it?
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diesel250rr
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Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby diesel250rr » Wed Jan 11, 2017 8:40 pm

Mine has a bolt
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TDezso
Southern Airboat Member
Posts: 84
Joined: Tue Jan 10, 2017 9:01 pm

Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby TDezso » Wed Jan 11, 2017 9:05 pm

That's really weird. This motor has run a long time with that hole open. I'm gonna rap it and plug it. Thanks for the pictures.

diesel250rr
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Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby diesel250rr » Wed Jan 11, 2017 9:06 pm

No problem you could pull one of your upper bolts and find the thread size

TDezso
Southern Airboat Member
Posts: 84
Joined: Tue Jan 10, 2017 9:01 pm

Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby TDezso » Wed Jan 11, 2017 9:55 pm

I tapped it to a 5/16x18 and pulled an unused stud from the acc case and ran it in with some rtv.


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John Fenner
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Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby John Fenner » Thu Jan 12, 2017 8:48 am

That is a bolt hole for the oil pump, 1/4-20 x1-1/4" long.
I never finish anyth,,,.

TDezso
Southern Airboat Member
Posts: 84
Joined: Tue Jan 10, 2017 9:01 pm

Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby TDezso » Thu Jan 12, 2017 12:11 pm

It wasn't threaded. Just a machined hole.

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John Fenner
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Location: Miami(Cuba) Fl.

Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby John Fenner » Thu Jan 12, 2017 12:45 pm

Then the bolt is broken off in the oil pump housing.
I never finish anyth,,,.

TDezso
Southern Airboat Member
Posts: 84
Joined: Tue Jan 10, 2017 9:01 pm

Re: What is this hole on the accessories case on a 220 just below the tach cable?

Postby TDezso » Thu Jan 12, 2017 1:57 pm

Easiest way to get to it? How many bolts hold the pump in? I can't find any info on the pump.



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