Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
sparkyaber

1997 honda 90 horse no go (update)

6 posts in this topic

This is a problem my father is having with his motor. All of the things listed are second hand to me through the phone. So please bear with me.

Motor was running fine and then stopped (after a bunch of alarms). Still turns over, and has spark.

He said he checked compression, and got 70 psi on all but one (cylinder #2), and got absolutely zero? Is that possible? Also, he said that there was water running from the bottom carb when he tried to start it. No water in the crankcase. We are thinking head gasket? Warped Head? Any thoughts? Other things we should be looking for?

Thanks

Share this post


Link to post
Share on other sites

I'd start with verifying the compression reading on the second cylinder... then probably pull the head and check for anything obvious.

marine_man

Share this post


Link to post
Share on other sites

That is what we had on the agenda, obvious like burned piston? would a bad head gasket reduce the compression to zero?

Share this post


Link to post
Share on other sites

Stuck Valve, Hole in the Piston, broken Rod...

I don't think a leaky head gasket would be enough to take the compression to 0, and I don't suspect the issues I listed above on this motor, so I suspect the test could be at fault.

marine_man

Share this post


Link to post
Share on other sites

Update:

My dad pulled the head off and it was a blown head gasket, and now a warped head. The problem started because two of the bolts that run through the head into the block were switched around and a short one was put where a long one was supposed to be and of course was only hand tight when he pulled the head off. Now this happened once before about 3 years ago and had it rebuilt by a very large local marina, would he have any recourse going back to them to get them to fix it for free or discounted? He paid 3000 dollars, and it was only a matter of time for that short bolt to work its way loose. In fact, they had to omit a washer just so the threads would start. Of course that is where the gasket failed, clear as day. I don't expect that he would have any chance to go after them, and neither does he, just thought I would post an update.

One other question, should the cam shaft spin fairly easily? Or should it take some elbow grease with a socket to get it to spin around and open and close the valves?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0



  • Posts

    • Watch your City Ordinances.  Some city's require a back-flow preventor, and it can be VERY expensive. I have both the battery backup, and the water driven sump pumps in my pit--all at different elevations, and feel very confident. When the water comes up, and the power goes out, the battery backup starts working.  After that the water driven sump pump will kick in.  The water driven pump will keep pumping until the power is restored and the main pump returns everything to normal. There is always water pressure in a power outage (from the tower).  Cities keep the tower full for fire protection
    • So proud of my 93 year old dad.  It's getting tougher and tougher just getting him out there, but he still knows what to do once there.    
    • I still gotta tag Moose! I'm going for a Tom only!!   (Personal thing) is ,,, I want to do it with my bow
    • Shaggy parasols are coming up in the shade garden again. Yum.  
    • VTX129 has a great point on nothing smaller than 9". I have a HB 998Ci HD unit. The bottom features that I can pick up are incredible- however I sometimes have a problem picking fish up on it. I have tried to keep my SI width narrower to help ID fish. Overall fantastic tool. The hard to soft transitions are easy to see as are rocks and so forth. On the HB units the larger screened ones come with the High Def transducer.  The smaller units come with a compact transducer. You can find some great prices on models that are being phased out - but they also will quit repairing those units sooner as well. Trade off's. Check out Universal Mania and some others online for pricing. Bass Boat central has a lot of info under Humminbird and Lawrance topics.   Good luck   Steve
    • CM I agree...and Chicago seems to find those diamonds in the rough...not sure how their AHL team is or if they have more of these "sleepers" coming up from somewhere but I bet they are right back in the finals within a 2-3 years with or without Q.   Another article that came in last night on Fletch/Wild http://nhl.nbcsports.com/2017/04/25/wild-exit-early-fletcher-stays-positive-a-familiar-refrain-in-minnesota/  You might have to Cut/Paste
    • Same have to give them a try once they come out.
    • Can't wait to test that Sprinker. 
    • lots coming thru for a couple days now.  had fun whistling with a couple yesturday. 
    • I wasn't able to catch it live and when I tried finding it after the fact it wouldn't play on my laptop for some reason. I do admire Bowman for being visibly ticked about their early exit, but I think that may get pushed a little too far. You tick off Q and he might just walk out the door. Bowman just fired one of his buddies and Q isn't too happy about it. We will see how that plays out. I think the Hawks are in a tougher position cap-wise than the Wild and have been for a few years. The difference is they had been getting no-name guys to emerge and contribute. They could be on a very slippery slope in Chi-town. We will see how that plays out.
  • Our Sponsors