Replace fuel pump gaskets/diaphragm?

[Arkman]

I'm working on fixing up a motor (1969 merc 200) and I'm wondering what I should do with the fuel pump. On the previous motor just like this one that I worked on a had to replace the diaphragm because there was a hole in it. I'm worried this one will have the same problem.

Is this something I can take apart inspect and put back together if its in good shape or do I have to replace the gaskets/diaphragm no matter what if I take it apart?

Should I just leave the fuel alone for now even though it sat for a long time (not sure how long)? Is there a good way to test the fuel pump without disassembly?

I have no problems replacing the gaskets/diaphragm its just that they are hard to find. Last time I found a kit on ebay for like 8 bucks but now I can't seem to find one.

 

[Arkman]

Re: Replace fuel pump gaskets/diaphragm?

OK, I have another question. On my original motor (1968 merc 200) I dont have part 7 in the parts diagram. In the new motor I'm working on (1969 Merc 200) I do seem to have that part. Whats the deal with that. My original worked (for the most part until I broke it)

 

[Barnacle_Bill]

Re: Replace fuel pump gaskets/diaphragm?

Part 7 is the fuel pump kit. Since the motor has sat for a long time you should rebuilt the pump as rubber can dryrot over time.

 

[Mi duckdown]

Re: Replace fuel pump gaskets/diaphragm?

If it was Me. I would clean and rebuild the carb completly. It will save you headaches down the road. Don't foget to change the impellar also

 

[Arkman]

Re: Replace fuel pump gaskets/diaphragm?

If it was Me. I would clean and rebuild the carb completly. It will save you headaches down the road. Don't foget to change the impellar also

Haha! Funny you should comment. The reason I'm working on a second motor is because the impeller failed on the first! I got a new one ready to install.

I'm going to clean and rebuilt the carb tonight, I'll order the new fuel pump kit. I was hoping to get it done by this weekend but I don't know if that will happen. I could take the fuel pump of the blown motor, I know that one is good. Maybe I'll do that.