Help with J6RESR from carb expert, please?

[labougie]

I'm rebuilding the carb on a 1990 6hp OMC. I put a carb repair kit in and re-assembled, but when I tightened up the bowl (in the correct sequence) it cracked.

With hindsight, the problem could be that when I disassembled it the first time, a gasket:

No. 27 above, was missing. The carb repair kit included the gasket, so I installed it - was it the height of this gasket which caused the bowl to crack? Having bought a new bowl, I have offered the entire assembly up to find that the combined height of gasket 29, nozzle well 28 and gasket 27 leaves a substantial (1/16") gap between the carb and bowl faces. Offering it all up without gasket 27 leaves a 1/32 gap which I would imagine a gasket and careful tightening would cover.

Could someone tell me please whether I NEED gasket 27 or not? If I DO need it, should I cut more gaskets for the carb/bowl joint, or should I file 1/32 off the bottom of the platic nozzle well?

Any pointers gratefully accepted. Thanks in advance.

 

[brogden31]

Re: Help with J6RESR from carb expert, please?

The good news is there is only one way to do it and thats how the book tells you!!! Now, these bowls are very easy to crack so my guess is you didnt have 28 pressed in enough or the 27 that was missing was stuck in the carb side, there hard to see sometimes use a pick to make sure good luck.

 

[Cofe]

Re: Help with J6RESR from carb expert, please?

I put in a Sierra kit awhile back. The #27 gasket was way too thick. I would have had to bend the float a whole bunch to get it adjusted. I used the old thinner gasket.

 

[labougie]

Re: Help with J6RESR from carb expert, please?

All's well that ends well - I put the new stuff together including #27 and it worked fine - I must have just been ham-fisted tightening it up the first time. Thanks for the advice, cheers, David