impeller replacement Honda 90

shellndanm · Posted: Sun Nov 10, 2013 8:35 pm Post subject: impeller replacement Honda 90

Changing the impeller on my new boat next weekend. It has a 2005 Honda 90. I was wondering if you have to drain the lower unit oil before dropping the lower unit? I have the diagram and instructions for replacement, but there is no mention about draining the oil.

Thanks,

Dan McPartlin

thataway · Posted: Sun Nov 10, 2013 10:22 pm Post subject:

No, the gear box is well below the impeller. However the gear oil is probably best changed each year. Not only changing the gear oil is important, but also checking for water--as often the seals of the lower unit can be damaged--by fishing lines.

ssobol · Posted: Mon Nov 11, 2013 2:34 am Post subject: Re: impeller replacement Honda 90

beermanPDX · Posted: Mon Nov 11, 2013 10:31 am Post subject:

I've changed out the impellers in my twin Honda 90s this summer. No need to drain the oil to do the job. It's an easy job.

The only difficulties that I had (and it wasn't really difficult) is that the lower unit didn't just slide easily off once I removed all the nuts. I had to gently persuade it with a rubber mallet. Also, trying to get the greased up hard rubber impeller vanes to bend so it fits in to the housing and stays there ended up taking longer than you'd think.

It probably took me about 45 minutes on the first engine and about 20 on the second once I knew what I was doing.

shellndanm · Posted: Mon Nov 11, 2013 6:14 pm Post subject:

To Sobelle,

Here is a link to a discussion board that has a copy of the manual for changing a honda 90 impeller in one of the posts. I couldn't figure out how to copy and paste the attachment into this forum.

http://www.marineengine.com/boat-forum/showthread.php?400985-Honda-2008-BF90D-water-pump-impeller-replacement.

Appreciate everyone's response. Absolutely loving this boat!

Dan

ssobol · Posted: Mon Nov 11, 2013 6:25 pm Post subject:

Thanks for the link.

Any idea what the lower unit weighs once it is disconnected from the motor?

srbaum

I realize this is an old topic... After changing my water pump, water jacket manifold, thermostat, fuel pumps and setting the valves in my carbureted 90 hp Honda last month, I wish that I had a photo document of the process, to make life easier for those that need to do this job in the future.

My engine was "making oil" due to a bad fuel pump and it was time to perform other maintenance, so that is the reason for the service of the above items.

I am now doing almost the same job on my neighbors Honda 90 hp fuel injected engine. This time I am taking a photo of each step in the process.

Here is where I need help... I need someone to aid me in getting these photos into a usable format to publish to the C-Brats site, so that everyone can use this as an aid in the future to perform these routine maintenance items.

redbaronace · Posted: Tue Jun 10, 2014 4:20 pm Post subject:

Wow, I need a neighbor like you.

smckean (Tosca) · Posted: Tue Jun 10, 2014 5:01 pm Post subject:

Captains Cat · Posted: Tue Jun 10, 2014 6:31 pm Post subject:

He has an album with pictures on it.