Prince George Vintage Motorcycle Club
General Category => General Discussion => Topic started by: MaximX on March 29, 2014, 07:50:54 PM
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I am having the head done on my bike, a 1985 Maxim X. It has been suggested to me that I get new valve guide seals. I have no oil loss that I know of, bike has about 70,000kms on it. What is your experience with older bikes? Feel free to advise on your experiences. I will do it if I should, but it does ad up replacing stuff like this. Yamaha quoted $12. per seal...even at $4.31 US (what I found on line) it would be another $86.20 US.
Mike
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I am having the head done on my bike, a 1985 Maxim X. It has been suggested to me that I get new valve guide seals. I have no oil loss that I know of, bike has about 70,000kms on it. What is your experience with older bikes? Feel free to advise on your experiences. I will do it if I should, but it does ad up replacing stuff like this. Yamaha quoted $12. per seal...even at $4.31 US (what I found on line) it would be another $86.20 US.
Mike
At 70K Kms, and your head is off anyways, I wouldn't miss the opportunity. Replace the seals.
Peace & Grease, Dennis
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What Dennis said. You are there anyway. They are an easy item to replace when the head is all apart anyway. There is a possibility of damaging an old seal when you put the valves back in because they do lose their pliability after a while due to heat and just plain old age.
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Yeah you guys are right.
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Also you are going to want to re-seat your valves neccessitating removal of the seals. When removing the valves get a styro block and pre hole and mark it to keep your valves in order, then seat one at a time. CHEERS.
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All good suggestions... And I would wholeheartedly agree also. Further to what fast1 said, maybe try an egg carton , so you can also put the shims in with them. that's a 5 valve head , right , Mike? might have to get two Egg cartons then.
Parker :)
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Oh I have something better than egg cartons, got them at the dollar store if I remember correctly....did this sort of thing 2 years ago....Yes 20 valves. And here is a bit of trivia, of the 3 intake valves, the one in the center is different from the other 2, same size but marked different.....
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Ah yes, thats right( intake valves). Well happy wrenching Mike!
MAC :)
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If you look closely at a Genesis head you will notice the intake valves form sort of an umbrella shape--my guess is that the center valve has a shorter stem length. Let me know when you get the head off and I'll come take a look. Also have a vintage GM Motorsports jacket for you if ya want it. Go nice with the Camaro. CHEERS.
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HI Fast, the head is off and I am having my friends at CARS do it for me....I want it done right this time...my only concern is my ability to shim it right once I get it back...I am not close to doing it yet, still have to order parts from the states....Yamaha is over double to almost 4x on some parts I can get south of the border....Yeah a jacket sounds good, will get it from you sometime....and this year you gotta make time to go for a ride with me. I am in the process of making the camaro true dual exhaust on the cheap, haha. I don't think anyone will have a catback like the one I am making....redneck NASCAR style.