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  #1  
Old 08-02-2004, 10:58 PM
Sledneck Sledneck is offline
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Join Date: Aug 2004
Boat: MasterCraft, PS190, 1987, 351
Location: Ontario, Canada
Posts: 88
'87 Prostar 190 questions.

Hello all, new to the site.. Great site by the way!

I have a 1987 PS190 w/ the 351..

I have a few questions.. What temps should I be seeing @ idle, @ speed, etc.?

What should the points be gapped too.? where should the timing be set.?

Tks,
Sled
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  #2  
Old 08-03-2004, 08:57 AM
Dan K Dan K is offline
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Join Date: Jul 2004
Boat: 81 Stars & Stripes
Location: Midwest
Posts: 514
Welcome to the site !
In answer to your questions;
The temp should be around 140 when running, it will rise slightly once you shut it down. These motors geerally run cool since you are constantly supplying them with cool water.

In regards to your other questions, I highly recommend you change over to electronic ignition. It can be done for around $100 and is as easy to do as changing the points. I did mine earlier this year and like others will tell you, it is the single biggest improvement you can make and will never be sorry about it. You can search this site for recommended sources, I used Vince at SkiDim and was satisfied with the price and service.
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  #3  
Old 08-03-2004, 10:42 AM
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east tx skier east tx skier is offline
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Boat: 1998 Ski Nautique
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Once I warm up, my temp sits on 160 (with the slight rise due to heat soak when shut down).
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  #4  
Old 08-03-2004, 07:16 PM
Sledneck Sledneck is offline
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Join Date: Aug 2004
Boat: MasterCraft, PS190, 1987, 351
Location: Ontario, Canada
Posts: 88
So my boat is runnin' on the hot side.. Probably due for an impeller..

So after removing the housing I noticed the impeller doesn't look in too bad of shape but a couple of the blades (for lack of a better term) are cracked. I'm assuming this is NO good. So how do I go about removing the impeller from the housing..?
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  #5  
Old 08-04-2004, 12:44 AM
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Kell Kell is offline
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Boat: 2009 X2, MCX
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You can use two screw drivers to pry it out or buy a special tool (called an impeller puller ) from West Marine for about $60. There is a thread on the old site that gives step by step instructions so try a search there. I don't know if they are available on the new site yet. Tips that I've read about are to lube the impeller up with dish soap, pull the netural safety switch off, crank the engine for a couple of seconds and the impeller will work its way out some and then grab it with plyers. As for me, I purchased the impeller puller which is a nice tool for a vdrive as access is limited. Here is a link to the impeller puller and you can probably find it elsewhere and cheaper.

Impeller Puller
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  #6  
Old 08-04-2004, 08:42 AM
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BrianM BrianM is offline
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Boat: 1988 Prostar 190
Location: Mandeville, LA
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My '88 runs at 160. The manual says that normal operating temp is 140 to 180. I am running a 142 thermostat the 160 thermostat made it run a bit hot .

As for the points go with the advise given and throw them away and buy a $99 electronic conversion and never deal with points or starting issues again.

Timing is 10 degrees.

I have had great luck with lubing the impeller up a bit and then cranking it over a few times. Works it loose and then pop it out easily with two screw drivers. No need to spend $60 on a puller since access is so easy.
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  #7  
Old 08-04-2004, 10:47 AM
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jclose8 jclose8 is offline
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Boat: 1987 Tristar 190
Location: Upper Michigan
Posts: 226
I have an '87 Tristar with a 351. It runs at about 160 degrees.
I disagree with the 10 degree timing, though. Mine is set at 6. Jimn?
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  #8  
Old 08-04-2004, 11:08 AM
bradamerry bradamerry is offline
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My 87' 190 runs @ 160 degrees. I just set my points, but will have to get you that info from the toolbox at home.
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  #9  
Old 08-04-2004, 11:15 AM
Knoxes
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The manual says 10 for the 190 Prostar.
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  #10  
Old 08-04-2004, 11:18 AM
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jclose8 jclose8 is offline
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Boat: 1987 Tristar 190
Location: Upper Michigan
Posts: 226
Are you sure it isn't 10 degrees for the Chevy 350, but 6 for the Ford 351? I'm pretty sure it's 6.
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