Piston Replacement in 1987 Evinrude 150

[skylerjshelton]

I have a 1987 Evinrude 150 hp that has a bad piston. i tore the motor down. ordered new piston and head gasket. for the reed plate and crankcase can i just use rtv gasket maker? thanks for any help

 

[wilde1j]

Re: Piston Replacement in 1987 Evinrude 150

See OEM shop manual for sealing the case halves. Get a proper gasket for the reed block.

 

[boobie]

Re: Piston Replacement in 1987 Evinrude 150

Don't use any type of sealer on reed plate gaskets or the intake manifold. For c/c halves without a gruve cut in them use Gel-Seal. If they have a gruve cut in them for a seal, use 3-M 847. Recommend getting an OEM service manual.

 

[Dhadley]

Re: Piston Replacement in 1987 Evinrude 150

Actually you can still use Gel Seal even if the motor uses the spaghetti type rubber seal on the halves. If you want to use sealer on the reed and intake gaskets you can use a non-hardning type sealer.

 

[dehydrated]

Re: Piston Replacement in 1987 Evinrude 150

i wouldnt use any sealer on the carb or intake gaskets just my .002 worth

 

[boobie]

Re: Piston Replacement in 1987 Evinrude 150

If you put sealer on the intake gaskets you can clog up the re-cirt passages. They also told us in OMC service schools yrs ago not to use Gel-Seal when you had a spaghetti seal in the c/c halves.

 

[nymack66]

Re: Piston Replacement in 1987 Evinrude 150

Ditto