600 water pump seal - Page 2 - HCS Snowmobile Forums

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Old 01-09-2018, 12:11 AM   #11 (permalink)
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Got engine out, water pump and oil pump removed.
Found lots of slivers from the worm gear
When removed WP shaft from engine.
Non of the bronze bushings that hold the WP shaft in place are worn.
Just the bronze gear and the teeth on the WP shaft.
No I guess I have to pull the bottom of the see how much more damage there is. Scoped the bores and they look really good. Still have 120 psi in both.

Pics below.
Thx steve
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Old 01-09-2018, 12:13 AM   #12 (permalink)
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Is this normal for the 600 engines to do this. Spending this much money was hopping to last a bit longer.
I'll contact dealer and see what they say.
Steve
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Old 01-11-2018, 09:10 PM   #13 (permalink)
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Mine at 2500 miles. Brass gear on crank was shot but everything elses was ok. It was cheaper to get a reman crank vs swapping gear. Im getting tired of these engines. If its not one thing its another
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Old 01-12-2018, 05:27 PM   #14 (permalink)
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It's cheaper to get a short block from Polaris than rebuilding the old one.
$2400 tax Inc for a short block and the take my old block for core.
I guess I'll be going this route.
Steve
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Old 01-14-2018, 10:50 PM   #15 (permalink)
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Get a crank and gasket kit and do it yourself. 2400 is nuts!
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Old 11-07-2019, 01:31 PM   #16 (permalink)
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I just went down this same road with a 2012 600 @ 7200 miles. Nut fell off, impeller spinning on the shaft, and a few metal chunks. I thought the metal chunks were the washer, but I picked up the new washer yesterday and it is tiny. So that got me looking.

So turns out the metal chunks are part of the mechanical seal, so ordered that today.

The root cause I am guessing is the brass gear on the crank... mine was razor sharp. The sharp teeth must catch only once in a while and spin the oil/water shaft??? New gear is a different colour of bronze than the old... told that it is harder. Did Poo cheap out here again?

New brass gear and 4 bearings on the crank done last month for $500 Cdn. ~ $100 for the water pump parts ....beats the $2400 option.. mind u I did most of the work, so lots of personal time and run around.
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Old 11-07-2019, 10:37 PM   #17 (permalink)
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Yeah i hear ya! Do you have the seal tool for pressing it into the case? this is a must have. I made mine as I am a machinist by trade. The pump shaft and seal must be setup correctly.
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Old 11-08-2019, 06:58 AM   #18 (permalink)
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$2400 short block? better check again. a 800 c.f.i. is $4,895.00 for a short block. if you pay retail. the most off you will get is 20%. unless a dealer sells you one at cost? still going to be more then $2400.

i just did a crank repair, replate cylinders, and two new piston's, always do a mech. seal, t-stat, and have injectors cleaned. just the motor, the bill was $2,350.00 the dealer told the guy that price on a short block $4,895.00 plus $300 to switch everything over? CV-tech was $2200 with shipping and you still have to switch water pump, stator/flywheel, reeds/ throttle body's, head and cover, etc. so we were cheaper. and give a full year warranty. no mileage limit. the dealer it was out door warranty. once you leave the shop it's your monkey? that's nice.
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Old 11-08-2019, 02:31 PM   #19 (permalink)
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Quote:
Originally Posted by largedaryl View Post
I just went down this same road with a 2012 600 @ 7200 miles. Nut fell off, impeller spinning on the shaft, and a few metal chunks. I thought the metal chunks were the washer, but I picked up the new washer yesterday and it is tiny. So that got me looking.

So turns out the metal chunks are part of the mechanical seal, so ordered that today.

The root cause I am guessing is the brass gear on the crank... mine was razor sharp. The sharp teeth must catch only once in a while and spin the oil/water shaft??? New gear is a different colour of bronze than the old... told that it is harder. Did Poo cheap out here again?

New brass gear and 4 bearings on the crank done last month for $500 Cdn. ~ $100 for the water pump parts ....beats the $2400 option.. mind u I did most of the work, so lots of personal time and run around.


At 7200 miles you will probably just need a new crank. Guarantee you have bearings that are getting rough. Rods are probably on there way out. If the pto bearing hasnít spun on the crank already itís more than likely started to loose its contact patch. At 4 to 5 thousand miles and your doing a top end on a 800 just go all the way down and have a reputable crank shop check it out. At 7600 on a 600 I would defiantly go all the way if your into the engine. Put a cat engine next to a Polaris engine and you will see why they donít last. This is why the 850 is leaps and bounds better than the liberty engines.


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Old 11-08-2019, 03:50 PM   #20 (permalink)
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Quote:
Originally Posted by largedaryl View Post
I just went down this same road with a 2012 600 @ 7200 miles. Nut fell off, impeller spinning on the shaft, and a few metal chunks. I thought the metal chunks were the washer, but I picked up the new washer yesterday and it is tiny. So that got me looking.

So turns out the metal chunks are part of the mechanical seal, so ordered that today.

The root cause I am guessing is the brass gear on the crank... mine was razor sharp. The sharp teeth must catch only once in a while and spin the oil/water shaft??? New gear is a different colour of bronze than the old... told that it is harder. Did Poo cheap out here again?

New brass gear and 4 bearings on the crank done last month for $500 Cdn. ~ $100 for the water pump parts ....beats the $2400 option.. mind u I did most of the work, so lots of personal time and run around.


At 7200 miles you will probably just need a new crank. Guarantee you have bearings that are getting rough. Rods are probably on there way out. If the pto bearing hasnít spun on the crank already itís more than likely started to loose its contact patch. At 4 to 5 thousand miles and your doing a top end on a 800 just go all the way down and have a reputable crank shop check it out. At 7600 on a 600 I would defiantly go all the way if your into the engine. Put a cat engine next to a Polaris engine and you will see why they donít last. This is why the 850 is leaps and bounds better than the liberty engines.


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