No part number? What can I do?

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Diver503562

Seaman Apprentice
Joined
Jun 3, 2003
Messages
35
Hi! I can not find a reg.nbr. on my motor, and I can't find a partnumber on my carbs... My merc-dealer can't order parts without one of them.. Can anyone of you out there help me? It is a Mercury 70HP, 1982-model, 3cyl, 2 carbs. The numbers I can find on my carbs are on the top one: MERCARB 20-66, 380 3 and WM6-1, and the bottom one: MERCARB 20-66, 380 1 and WM6-3.<br /><br />The parts I need are inlet needle seat gaskets.
 
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Bear

Lieutenant Commander
Joined
Mar 1, 2001
Messages
1,627
Re: No part number? What can I do?

Not sold separatly. What are they made of? Rubber or gasket material (paper)?<br />Can't you make new ones out of a sheet of paper or find an o-ring that fits?<br /><br />From http://www.marinshopen.se/ <br />I'd say your serial number is in this range:<br />70 5974683 - 6279959 1982 3 cyl <br />Go to this page and find this link in the list:<br />70 (3 CYL.) 70HP 3 CYL 1980-1983 5579017 thru 6428680 USA <br />Choose CARBURETOR ASSEMBLY<br /> Exploded view of carb <br /><br />Am I right? <br />There is a gasket set:<br />M13956200 GASKET SET @ $2.19 and you need two of them.<br /><br />Check it out
 
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Diver503562

Seaman Apprentice
Joined
Jun 3, 2003
Messages
35
Re: No part number? What can I do?

I will take a look at this web page! Thanks a lot! But do you think it is possible to "make" new ones if I can find an o-ring that fits? Doesn't it have to be a 100% correct fit?
 
B

Bear

Lieutenant Commander
Joined
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Messages
1,627
Re: No part number? What can I do?

I think it is possible. But it has to be fuel resitant. Use o-rings from a different carb. Do you have a friendly dealer? <br />A hardwear store? An auto supply store?<br />Bring the old ones. Measure the inner diameter where they are in the carb body. Add 1 mm or so.
 
D

Diver503562

Seaman Apprentice
Joined
Jun 3, 2003
Messages
35
Re: No part number? What can I do?

I have a friendly dealer, but they have almost nothing on stock.. need to order everything.. But I will go and ask them this afternoon if they can help with some o-rings! Thanks again, Bear!
 
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