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phil&sean
04-22-2013, 09:13 PM
Does anyone know what make/model impeller I need for our 1994 ProStar 190 with the Corvette LT 1 engine?

I included a picture of our boat that has been great for two seasons. In fact, it was not running hot last year but we found pieces of it when we winterized the boat last fall so we obviously need new one.

http://i37.tinypic.com/5yamjd.jpg


TIA

Phil

ricford
04-22-2013, 09:25 PM
My 96 LT1 takes this one. If it's a Johnson pump this is it. I always take it out when I winterize, and replace in the spring even if it looks good. Cheap insurance.

http://www.skidim.com/prodinfo.asp?number=RP061018

phil&sean
04-22-2013, 09:54 PM
Thanks for the quick response. I appreciate it. I will check the pump to see if it is a Johnson.

Rockman
04-22-2013, 10:00 PM
How many bolts are on the impellar casing?

If it is 4 (most likely), then it is a Johnson.

That is what is on our 94 LT1.

Ben
04-22-2013, 10:25 PM
That looks right, although I thought it was a 0812.

jakethebt
04-23-2013, 02:37 AM
That is the one my '96 LT-1 uses as well.

Jorski
04-23-2013, 09:26 AM
This one:

http://www.skidim.com/prodinfo.asp?number=RP061018

pram
04-23-2013, 02:32 PM
My 95 uses an Jabsco in my LT1

http://www.skidim.com/prodinfo.asp?number=JAB18777-0001

When I bought the boat there was no circ happening, turned out they had a Johnson impeller in my Jabsco pump

Cost me a water pump because of it, I am sure

ricford
04-23-2013, 04:11 PM
My 95 uses an Jabsco in my LT1

http://www.skidim.com/prodinfo.asp?number=JAB18777-0001

When I bought the boat there was no circ happening, turned out they had a Johnson impeller in my Jabsco pump

Cost me a water pump because of it, I am sure

Ya, skidim's site says that some 95s have the Jabsco pump.

dlavoie
06-22-2016, 04:43 PM
I just bought my first MC 1996 prostar 205 with LT1. Is the impeller hard to get at or difficult to change? I think I found the location of the housing but I'm not positive. Thanks!

Table Rocker
06-22-2016, 05:37 PM
Your pump is going to look like this, but it is probably painted black. It will be about five inches from your ski pylon and mounted on the front of your harmonic balancer/crankshaft pulley
http://www.waterskis.com/v/vspfiles/photos/Raw_Water_Pump_LT-1_LTR-2.jpg
The impeller isn't hard to get to, but it can be a little difficult to remove at times. We all have our own ideas about the best way to remove them. If you are replacing the impeller, just grab it with a pair of needle nose pliers and pull. If a vane rips off, try again.

Hglide09
06-22-2016, 06:50 PM
Ricford...you change every year. I've had my 92 PS205 3 years now and never changed it, don't know when it was ever replaced. I'm learning a ton on this forum as I go along but how do I know if it's bad? Any idea where and what model for a 92 with a carbureted 351? I'm guessing I should just change it to be safe

drydog131
06-22-2016, 08:25 PM
Nope it's super easy to change. Open up the engine cover close to the floor will be a housing with 4 screws. Take them off and pull out old one and replace new one. You should get a new gasket when you buy the impeller make sure you replace that as well. Replace housing and you are good. It's about a one beer job. If i had the boat here i would provide a picture but its at the lake house. Someone else might be able to provide you with one or if you take one myself or someone else can confirm.

Ben
06-22-2016, 09:39 PM
Put some marine grease on the inside of the impeller splines to make removal easier in the fall.

lakedawg
06-23-2016, 08:29 AM
Ricford...you change every year. I've had my 92 PS205 3 years now and never changed it, don't know when it was ever replaced. I'm learning a ton on this forum as I go along but how do I know if it's bad? Any idea where and what model for a 92 with a carbureted 351? I'm guessing I should just change it to be safe

If the engine starts overheating that is always the first thing to check. Good to keep a spare IN YOUR BOAT! Easy fix on the fly. The impeller resides in the RAW WATER PUMP which supplies lake water to your engine for cooling. If the impeller fails your engine will overheat that is why most will replace it during winterization - $40/year or thousands on a major engine overhaul if it overheats!

paco_06
06-23-2016, 09:09 AM
Ricford...you change every year. I've had my 92 PS205 3 years now and never changed it, don't know when it was ever replaced. I'm learning a ton on this forum as I go along but how do I know if it's bad? Any idea where and what model for a 92 with a carbureted 351? I'm guessing I should just change it to be safe
Most owners of this era will recommend an impeller change every year as they a prone to failure. I am on my second year with my 93 model and haven't changed it yet, I have around 60hrs on a new one. I am going to shoot for 100hrs as that is what I think is recommended interval per owners manual. I constantly watch my temperature hand though, and have a backup impeller and gasket along with tools to change if necessary.

If I were you I'd order one, change it, and if your old one still has life in it, keep it for a spare. If it looks very worn, order another to keep in the boat for a spare.

I think water cleanliness has a lot to do with the life of them. My boat is used in fairly clean lakes, so I think I'll get more life. If your water is muddy, I would think the lifespan will be much shorter. Dirt will eat at the vanes.

CruisinGA
06-23-2016, 09:12 AM
Too cheap to not change every year, I hang on to a few old ones for spares but haven't needed one since I started changing every year

neil.anderson63
06-23-2016, 09:22 AM
Too cheap to not change every year, I hang on to a few old ones for spares but haven't needed one since I started changing every year

Exactly~

lakedawg
06-23-2016, 09:23 AM
Bailey-

How's the water on Blue Ridge these days? I think we are finally above 78 on Burton, LOL!

JH

dlavoie
06-23-2016, 09:40 AM
Thanks so much for the pic!

dlavoie
06-23-2016, 09:49 AM
Hi guys, have my first MC, but still getting familiar with how it "works". Quick question: With my 1996 PS 205 with LT1, what prevents debris (leaves, small sticks, whatever) from getting into the raw water intake and causing a backup / clog somewhere in the engine? Does the boat have any type of "screen / filter" that I should be cleaning out? If so, I can't seem to find it. Thanks!

paco_06
06-23-2016, 09:54 AM
Hi guys, have my first MC, but still getting familiar with how it "works". Quick question: With my 1996 PS 205 with LT1, what prevents debris (leaves, small sticks, whatever) from getting into the raw water intake and causing a backup / clog somewhere in the engine? Does the boat have any type of "screen / filter" that I should be cleaning out? If so, I can't seem to find it. Thanks!
Trans cooler has a screen.

mikeg205
06-23-2016, 09:55 AM
without a sea water strainer - the trans cooler will be the first line of defense for debris... you can add a seawater strainer.