Rings on 04 Summit 800

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pat93fox

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Feb 21, 2008

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• Sep 29, 2009

• #1

I am edging up on 2000 miles on my 04 Summit. My dealer swears up and down that the 800 did not have the ring issue but I have seen too many posts on here regarding rings to believe him 100%. Is compression a good way to know if my rings are flaking? I have 125 on both sides, which seems good to me. Any advice?

 

J

Joe Mama

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Nov 26, 2007

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• Sep 29, 2009

• #2

I have an 04 and had the ring issue.

 

h-d2

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Nov 26, 2007

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Omaha,Ne

• Sep 29, 2009

• #3

pat93fox said:

I am edging up on 2000 miles on my 04 Summit. My dealer swears up and down that the 800 did not have the ring issue but I have seen too many posts on here regarding rings to believe him 100%. Is compression a good way to know if my rings are flaking? I have 125 on both sides, which seems good to me. Any advice?

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I had a 04 and the rings were flaking at 500 miles.I would be a little concerned with the stock pistons also.I would do a 2 ring drop-in kit from rktek or Big John( Sled head racing). Nice improvement over the stock single ring piston.Just my 2 Cents.:beer;

 

S

Summit97

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• Sep 29, 2009

• #4

04 rings

I had a 04 with 750 miles and they had flaking on them so I went with BJ's kit. I think I would change then. It's just cheap insurance.

Summit97

 

S

superdoo

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Oct 17, 2004

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edmonton, ab

• Sep 29, 2009

• #5

rings

mine grenaded at about 700 miles
flaked and then blew up.
took out both pistons

replaced with RK head and drop in kit. good reliable set up.

 

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portgrinder

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Nov 26, 2007

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Edmonton

• Sep 29, 2009

• #6

Flaking rings will not really hurt you. You will just be down some power.

What does in these engines is usually the ring locator pin. It has a way of falling out, your rings spin, catch a port, game over.

 

H

Heavysledz

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Dec 21, 2001

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Meridian, Idaho

• Sep 29, 2009

• #7

Does the 05 800's have the same ring issue?

 

whitefish

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• Sep 29, 2009

• #8

I have rebuilt about 20 04's and 05's and never seen one that didn't have bad rings. Yes,you will be down on power and they can cause some over heating issues on long pulls.

 

X

Xtremecb

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Sep 1, 2008

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• Sep 29, 2009

• #9

whitefish said:

I have rebuilt about 20 04's and 05's and never seen one that didn't have bad rings. Yes,you will be down on power and they can cause some over heating issues on long pulls.

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I'd have to agree with you whitefish. I've rebuilt a few 800 HO's and have seen ring flaking in almost every case, some that had started to flake the nikasil off of the cylinder. Big John's, RKT's, even Weiscos with Swain Tech Coatings are all good choices.

 

whitefish

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• Sep 29, 2009

• #10

You can check the exhaust side of the ring by pulling the RAVE valve off of the PTO side and looking down there with a good light. If it looks good it doesn't mean the rest of it is good. You can only confirm if it is bad.

 

H

Heavysledz

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Dec 21, 2001

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Meridian, Idaho

• Sep 30, 2009

• #11

Thanks.....this is what I thought you were going to say......I have a new top end kit on order anyways but wanted to know what others saw on the 2005's. I bought my sled used with almost 2K miles on it so I have no history on rebuilds or warranty repairs. I did pick up a 2004 that had tore up a cylinder and rave valve because of the ring alignment pin came out. I noticed that the rings were pitted up pretty good as well. I replaced the cylinder, head and RAVE guilitine and put in an SPI kit and it seemed to work really well up until I sold it.....

Could the ring pitting/delamination in any way cause a ring alignment pin failure?

 

S

superfly333

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• Sep 30, 2009

• #12

Have an 04 and rings went at about 1500 miles, turned in ports and ruined cylinder. Recommend to replace them before detonation...

 

T

team dirt

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seymour b.c

• Oct 1, 2009

• #13

ya they flake. the locator pin coming out is usually due to detonation.

 

S

snow_freak

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Jan 11, 2009

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Wasilla

• Oct 2, 2009

• #14

Heavysledz said:

Could the ring pitting/delamination in any way cause a ring alignment pin failure?

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like team dirt said its usually caused by detonation because them engines did not have the knock sensor until 06, so you could probably blame the gas station for selling you watered down gas.