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post #1 of 15 (permalink) Old 01-30-2008, 04:59 PM Thread Starter
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Head Gasket ?

2001 Arctic Cat ZR800 le

I hope I diagnosed this problem right, because I already ordered the parts. (extra white exhaust, smelled like anti-freeze, and resivor was empty by the time we could get back) We checked and didn't see external leaks anywhere.

Are there any tricks to replacing these gaskets? I ordered the whole top end kit. What are the heads supposed to be torqed at? Is there an order?

I'll have more questions I'm sure.

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #2 of 15 (permalink) Old 01-30-2008, 06:22 PM
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I'm glad you ordered a top end set. Replace the base gaskets while you're at it. They are at the bottom of the cylinders.

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post #3 of 15 (permalink) Old 01-30-2008, 08:02 PM Thread Starter
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It also included a few small o rings. Any idea where those go?

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #4 of 15 (permalink) Old 01-30-2008, 08:57 PM
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Water pump?

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
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post #5 of 15 (permalink) Old 01-30-2008, 10:30 PM
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If they are the tiny ones like a quarter inch I think they are for the 4 bolts that hold the coolant manifold between the two jugs. I think on my old 700 one bolt on each side ran into the head and one into the jug. They were a small o ring that sat just under the head of the bolt. When you are trying to get the head o rings on you may have to streach or shrink them (especially the inside one which is usually a little thicker) To shrink let sit outside or in freezer, to expand put it in a pan of hot water. It you try to pull on it to streach they sometimes break or get a funny shape. Good luck!

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post #6 of 15 (permalink) Old 01-30-2008, 10:32 PM
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Don't forget to put some hi temp silicone on your exhauset gaskets if your not replacing them to get a good seal before the pipe goes back on. just a light bead so none is pushed into the ehaust. (Not that a little silicone in the pipe will really hurt anything tho)

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post #7 of 15 (permalink) Old 02-01-2008, 09:04 PM Thread Starter
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Quote:
Originally Posted by phishook
It also included a few small o rings. Any idea where those go?
They went on the head bolts.

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #8 of 15 (permalink) Old 02-03-2008, 05:11 PM Thread Starter
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Going to take this back to the top because I'm still having problems.

I took it out fopr a short ride today. maybe 10+ miles.

I got back and the resivor was empty. The clutch side plug was dark tan. The other plug was white as snow and crusty.

I didn't notice the exsaust color or smelling like anti freeze like I did before.

I thought I had the system full, but maybe not.

Any oppinions on what is going on?

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #9 of 15 (permalink) Old 02-03-2008, 07:14 PM
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Could have just been air in the system and your plugs were bad from the initial problem

2004 Arctic Cat F7
1997 Arctic Cat ZR 580
1972 JD JDX 400
1978 JD Cyclone 340
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post #10 of 15 (permalink) Old 02-04-2008, 06:21 AM
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DO a compression test on that side.

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
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post #11 of 15 (permalink) Old 02-04-2008, 07:39 AM
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You are still leaking coolant into the cyl.
One of the O-rings either is not seated right or you have a crack somewhere.

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post #12 of 15 (permalink) Old 02-05-2008, 11:15 AM Thread Starter
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Big question?

If you are low on antifreeze, Will the temp. light come on?
The tempeture light didn't come on.....

...back to the shop again

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #13 of 15 (permalink) Old 02-05-2008, 11:18 AM Thread Starter
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Quote:
Originally Posted by smallengineguy
DO a compression test on that side.
We did a check after we replaced them the first time. I think that side was 135 and the clutch side was 140.

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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post #14 of 15 (permalink) Old 01-19-2010, 07:20 AM
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I am currently having the same problem with m y Arctic cat ZR600 and I just was wondering the outcome of your situation. I have white antifreeze smoke pooring out of the exhaust. Did the head gasket change do the trick or was it something else?
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post #15 of 15 (permalink) Old 01-19-2010, 08:30 AM Thread Starter
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Quote:
Originally Posted by ArcticcatZRBM View Post
I am currently having the same problem with m y Arctic cat ZR600 and I just was wondering the outcome of your situation. I have white antifreeze smoke pooring out of the exhaust. Did the head gasket change do the trick or was it something else?
Please! For the sake of your sled and wallet! Take it to a certified car dealer!
lmao

I'm putting my fourth top end on since this post, at 800-1200 a time. Needless to say, the gasket was not my only problem. I believe everything below the spark plug was crap on this motor.

Seriously though, If it's not the head gasket It's going to be the base gasket. You'll want to get it right the first time because you cylinders are chrome plated and are $200-$300 to have replated if you score them.
AC's are also hard to prime with antifreeze. after you replace the gaskets, you have to raise the front of the sled up so the bubbles get out of the heat exchanger in the tunnel. Fairly easy, but if you don't your water won't flow and you'll overheat.

79 JD 440 Trailfire
01 AC ZR800
09 Skidoo MXZ tnt 500ss 110 miles and seized my motor twice it's in the shop right now under warrantee, I'll update this when I hear from the dealer.
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