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Old 05-21-2016, 03:31 AM
dguerard dguerard is offline
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Boat: Prostar 190 1999
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Changing raw water pump

Hi everyone, i m french and i apologize for my very bad english.
I have an Indmar Engine 5,7 EFI on a Prostar 190 of the year 1999, and i ordered a raw water pump Sherwood P105, mine to be changed.
There are several holes on the new pump with several diameters, but i tried every positions, it does fit only with two of the 3 holes on the body of the axe of the crankshaft of my engine.
I m surprised because according to my supplier, the new pump is supposed to be standard for my engine.
Anyway, i mounted this new pump with only the 2 bolds instead 3, and the engine runs properly.
Is it a matter to continue to run the engine like this ?
Thanks for your answers
David
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Old 05-21-2016, 06:05 AM
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geordie-wake geordie-wake is offline
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There are two styles of pump the indmar LTR and LT1 engine use the 3 hole mounting, when mine needed replacing the dealer sent the wrong pump and was adamant it was correct till I asked for a guarantee on it. The correct 3 hole johnson pump was then sent
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Old 05-21-2016, 06:32 AM
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mgs96ps mgs96ps is offline
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Last edited by mgs96ps; 07-24-2016 at 06:00 PM.
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Old 05-21-2016, 10:32 AM
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When you can't get all three holes to line up, rotate the pump flange one hole and try again.

My pump only lines up one way. I put a dot of paint on the back of my flange and on the harmonic balancer to make it easier next time.

Also, was the flange on your old pump the same as the new one?
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Old 05-21-2016, 12:30 PM
Fullpass Fullpass is offline
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It is very easy to tap end of old pump shaft out of pump body, can lay pump on the floor, something to cushion pump body, take a a hardened extension tap the shaft on the end the impeller slides onto, semi heavy harmer, tap extension with hammer, extension to pump shaft, bearings, will begin to ease out, just medium light taps, two bearing will press out of pump body, still attached to pump shaft and flange, get a bearing puller, pull bearings, press new bearing onto shaft, socket 5/8 washer…can get bearing on Ebay the OEM NUMBERS ARE: BEARING BRAND ~ SKF 6203-2RS1 these are the exact replacement bearing for you old pump, stainless and double sealed. You should buy new pump seal for the back of pump body.. pump seal part BRAND ~ Angus DPSM 16287 You CAN BUY THE BEARINGS FOR 10 US DOLLARS, pump body SEAL 10 US DOLLARS..30 DOLLARS TOTAL. "NO WAY WOULD I USE THE OTHER PUMP INCORRECT FLANGE…ONE OR TWO BOLTS, UNSAFE AS HELL, pump might just come back and bite you in the back your head at 4000 rpm…I can get you the parts and send them to you if needed.
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Old 05-21-2016, 04:34 PM
dguerard dguerard is offline
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Thanks for all your accurate answers, i was wondering, why not piercing a third right hole in the flange of the new pump if i get the proper tool to do so ?
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Old 05-21-2016, 08:36 PM
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Quote:
Originally Posted by dguerard View Post
Thanks for all your accurate answers, i was wondering, why not piercing a third right hole in the flange of the new pump if i get the proper tool to do so ?
You will not need to do that if it is correct. Is the new flange the same as your old flange?

Can you post a pic of your engine?
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Old 05-21-2016, 08:42 PM
Blackhawk36 Blackhawk36 is offline
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I have a 1995 Prostar with a 5.7 Liter Indmar and it uses the one on the left geordi-wake's picture above. My crankshaft pulley has a locating pin that aligns the bolt holes.
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Old 05-21-2016, 08:49 PM
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osmonet osmonet is offline
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Are you sure you have the correct pump?

Assuming you have a LT1/LTR motor you need this one;

http://www.skidim.com/RAW-WATER-PUMP...tinfo/68-5020/


The one you have looks to be for a non LT1/LTR motor.
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