is this the right gasket???

[bpmcl00]

after taking my riser off to pressure test it i ordered a new gasket from my local boat shop. the OEM part number is 27-860233. But i got a sierra part number 18-0897. when i did a cross reference i did not get the original OEM part number to my sierra part number.

Also my OEM riser looks like a metal flange, this one is like a composite thicker material. Does this matter??

Also whats the difference between restriced flow gaskets and non???

what are there applications??


Thanks guys

 

[Don S]

Re: is this the right gasket???

Take it back and get the right OEM part. Much better gaskets.
This service bulletin should explain the rest.

http://www.boatfix.com/merc/Bullet/99/99_10.pdf

 

[bpmcl00]

Re: is this the right gasket???

Take it back and get the right OEM part. Much better gaskets.
This service bulletin should explain the rest.

http://www.boatfix.com/merc/Bullet/99/99_10.pdf

so that sierra gasket is worthless?

 

[Don S]

Re: is this the right gasket???

I wouldn't use one on my boat.

 

[bpmcl00]

Re: is this the right gasket???

I wouldn't use one on my boat.

thanks mate.

also should i smooth away any rust or roughness with some sort of sand paper or emory?

and should i use any sealant like Perfect seal or Permatex??

 

[Don S]

Re: is this the right gasket???

should i smooth away any rust or roughness with some sort of sand paper or emory?

and should i use any sealant like Perfect seal or Permatex??

Re-read the service bulletin I posted above. It covers both of those questions.
Just to ad about gasket surfaces, they must ALWAYS be clean and flat. Otherwise they will not work with or without a gasket.