2001 Mercury XR6 Cylinder Probs

TN_Bassin · 12-26-09, 10:38 PM

I have a 2001 Mercury XR6 on our Nitro ski boat, and first off I know close to nothing about motors and am trying to learn a little bit more. The motor will run, and 5/6 cylinders get compression but the number 4 just doesn't for some reason. I have taken the head off and the cylinder is not blown or anything it just doesn't get compression anymore. Anyone have any ideas why this is? I do not want to have to take it for repair if I can avoid it.

1FASTLASER · 12-31-09, 05:45 PM

Pics........did you take any pics of the cylinder in question............also how are you taking the compression readings???? I need to know if you are doing the compression tests correctly.....thats why I am asking the procedure you used to do this.

TN_Bassin · 12-31-09, 07:40 PM

I will take some pictures and ask my brother in-law the exact procedure we used. He knows more about engines than I do and he is teaching me some things.

12-26-09, 10:38 PM	#1
TN_Bassin BassFishin.Com Super Veteran Join Date: Nov 2009 Location: Bon Aqua,TN Posts: 1,013	2001 Mercury XR6 Cylinder Probs I have a 2001 Mercury XR6 on our Nitro ski boat, and first off I know close to nothing about motors and am trying to learn a little bit more. The motor will run, and 5/6 cylinders get compression but the number 4 just doesn't for some reason. I have taken the head off and the cylinder is not blown or anything it just doesn't get compression anymore. Anyone have any ideas why this is? I do not want to have to take it for repair if I can avoid it. __________________ Other anglers are tough, but the fish are the real competition.

12-31-09, 05:45 PM	#2
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	Pics........did you take any pics of the cylinder in question............also how are you taking the compression readings???? I need to know if you are doing the compression tests correctly.....thats why I am asking the procedure you used to do this. __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

12-31-09, 07:40 PM	#3
TN_Bassin BassFishin.Com Super Veteran Join Date: Nov 2009 Location: Bon Aqua,TN Posts: 1,013	I will take some pictures and ask my brother in-law the exact procedure we used. He knows more about engines than I do and he is teaching me some things. __________________ Other anglers are tough, but the fish are the real competition.

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