1992 Nissan NS8B dies when cover is installed

2mdsailors

Recruit
Joined
Jul 16, 2007
Messages
3
Hi folks,

First post so be easy,

I have a 1992 Nissan NS8B on my F-27 trimaran that we bought last Sept. The motor has run strong until this last weekend.

The motor would run just about just above idle @ WOT. and running very rough. I changed out the plugs and the motor ran great until I put the cover back on. I think the motor is being starved for air. As I slowly lower the cover in place I can hear the RPM's start dropping.

I have tried a small section of thin rubber in the rear of the cover to rule out any plug wire grounding.

I did notice a great deal of exhaust from what I think is the crank case vent? (next to where the throttle and shift linkage comes into the cover).

Taking the motor off of the boat to take in to a shop is quite a chore, with the remote throttle and wiring.

Any suggestions?????
 

TOHATSU GURU

Admiral
Joined
Jul 22, 2004
Messages
6,164
Re: 1992 Nissan NS8B dies when cover is installed

Take it into a dealer is your best route.
 
Top