Head gasket repair??? - Honda ATV Forum
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post #1 of 6 (permalink) Old 02-18-2012, 04:29 PM Thread Starter
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Post Head gasket repair???

Ok, I'm looking at a 400 ex. Guy says its on a 2003 frame 2005 motor. Wich was rebuilt to a 440 in 2010.. He wants 1500 but it needs a head gasket and battery. How big of a problem is this???? What's it gonna cost to fix?? And whats it really worth? Plastics in awesome shape tires look new too.. Any ideas?
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post #2 of 6 (permalink) Old 02-18-2012, 04:39 PM
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On paper it's a cheap fix in parts but you never know when you purchase a "simple" fix project....

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post #3 of 6 (permalink) Old 02-18-2012, 05:00 PM
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Battery costs right around $50. The head gasket might have to be specific to a 440 I am not sure about that but those gaskets are cheap. Sounds like a great deal since the '05 motors have reverse. But it's always a gamble.
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post #4 of 6 (permalink) Old 02-18-2012, 07:11 PM
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Find out if a high compression piston was used. If so, run away.............fast. A very well document problem occurs when a high comp piston is used in these motors. The increased compression will cause the cylinder head studs to start tearing themselves out of the cylinder, and the first sign of this will be a head gasket leak, which may sound like a valve tick, or the sound heard when a spark arcs. There is a fix, which requires removing the cylinder, then drilling and retapping the holes to accept larger studs. It can be a little pricey if you don't have the mechanical know how, so I would suggest looking for another quad.

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post #5 of 6 (permalink) Old 02-18-2012, 07:37 PM
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it blew the head gasket because the head is warped or what rich250rracer said for $75-100 bucks you can have the head resurfaced at a machine shop i think 1500 is a little bit high

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post #6 of 6 (permalink) Old 02-19-2012, 02:57 PM Thread Starter
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Ok so he just said he thought the high comp piston was put in. I also found out he traded a gocart frame for the quad... And cant get intouch with the guy. So it sounds like he thought he was getting a deal then found out he got screwed. Heck idk but for 1500 hundred it should be running in my opinion!! Thanks for the advice fellas! I'm sure I'll be asking for help again soon.
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