Can I replace a steel impeller with a rubber one?

ScottyB_RochNY · Addict Joined: 09 Jun 2004 Posts: 971 City: Rochester

Is this possible? If so, same size, or what? I dont know much about impellers.
Any info necesary.

MrBlean · Posted: May 21, 2005 1:44 am Post subject:

You got me there buddy. Never heard of a steel impeller nor a rubber propellor (if that's what you mean)

jvanick · Posted: May 21, 2005 2:21 am Post subject:

Maybe what he's thiking of is the engine water pump as opposed to the raw-water intake pump?

I think you would want to replace steel with steel and not rubber that would break down over time.

-J

ScottyB_RochNY · Addict Joined: 09 Jun 2004 Posts: 971 City: Rochester

Ok i'll check today. The guy I bought the boat from claimed that it was a steel impeller. We'll see I guess,, the boat is a Supra Sunsport.

MrBlean · Posted: May 22, 2005 11:06 pm Post subject:

I think jvanick has hit the nail. The vendor prolly doesn't know there are two pumps - a raw water pump and circulation pump. If so, doesn't bode well for a regular change of impellers in the past, does it?

Engine oil pumps use a steel "impeller" where the centre of rotation is offset so steel impellers are not unheard of. However, such impellers tend to be referred to as gears, which is what they look like. See: http://www.nsxprime.com/FAQ/Performance/oil_pump_upgrades.htm

ScottyB_RochNY · Addict Joined: 09 Jun 2004 Posts: 971 City: Rochester

Thanks, he was wrongt, there was a normal ruybber impeller in there, luckily it was in good shape but I replaced it anyways.