Water Pump Gasket Sealer Options

[jml430]

Preparing to replace the water pump impeller in my '87 150 Hp Johnson outboard. Watched a couple of YouTube videos where they mention OMC Gasket Sealer compound. Can I simply use Permatex Blue RTV Silicone Gasket Maker instead? Also, somewhat concerned about re-attaching the shift linkage. From the videos it looks like one needs to have to motor in forward gear, not neutral. Can someone explain why?

Thanks!

 

[emoney]

Re: Water Pump Gasket Sealer Options

Speaking from the refence of a 'Rude 140 from 1980, manual says "forward", I believe so that people remember to have both parts in the same gear. Forward is a smidge simpler for "playing" the two back together during reassembly, should you need to. I didn't use a silicone gasket so "no comment" there.

 

[boobie]

Re: Water Pump Gasket Sealer Options

Use Permatex #3. Works the same as gasket sealing compond.