11-29-2009, 08:24 AM | #1 |
Gone Wild
Join Date: Oct 2009
Location: Idaho
Posts: 160
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89 Flathead died....
I have an 89 CC with the flathead still in it... was on the course yesterday going down a hill and it just lost all power and would not restart... cart will turn over & is getting fuel... but feels as if there is no compression..?? pedal feels as is if motor is just free spinning... If that makes sense to anyone...
Any info would help as its pretty cold out and I have enclosure with heater and play 4+ times a week.. Thanks!! |
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11-29-2009, 10:22 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 89 Flathead died....
Check the basics. Pull the fuel line at the carb and crank it = any fuel? Okay. Install a spark tester w/ bulb ($5 from Harbor Freight) and crank it = any spark? Okay. Remove plug and read it's color. White gray brown or black? Uhuh... Install compression tester and post the results here...... these are the 3 components needed to run fuel spark and compression.... you lost one of them? If this is all greek to you, then I suggest you take it to a qualified shop
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11-29-2009, 10:30 AM | #3 |
Gone Wild
Join Date: Oct 2009
Location: Idaho
Posts: 160
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Re: 89 Flathead died....
not greek at all....
cart is getting fuel.... & spark... I have yet to test for compression but as I said it just felt funny in the pedal while trying to start... like it was "free spinning" I just have a hard time believing that it would just stop running if it was catastophic damage... thought someone might know a simple fix off the top of their head... Maybe its Big Block time |
11-29-2009, 10:34 AM | #4 | |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 89 Flathead died....
Quote:
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11-29-2009, 10:42 AM | #5 |
Gone Wild
Join Date: Oct 2009
Location: Idaho
Posts: 160
|
Re: 89 Flathead died....
If a broken ring.... this flathead motor (after inspection of both engine & diagrams on this site) looks to be similar to a 2stroke engine top end rebuild... I used to be able to rebuild my cr250's in about 2-4 hrs (depending on beer) & have read that milling the head about 20-30 under while doing so is also cheap & easy to do...
Am I even close or is the job more involved than it looks...? |
11-29-2009, 10:56 AM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 89 Flathead died....
You are right the head comes off. Over bore ring and piston sets are avail. I shaved .050 off of the head and the result was a stronger pulling engine. I used a .050 piston also. the resulting compression was improved without being so high as to be hard for the little starter to turn well
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11-29-2009, 11:04 AM | #7 |
Gone Wild
Join Date: Oct 2009
Location: Idaho
Posts: 160
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Re: 89 Flathead died....
Although we all want more power & speed... My cart is used on the course only... so I am mainly looking for reliability over all else.. I am guessing that any competant machine shop should be able to bore the head & cylinder? I peeked at ebay... but where can i find the over sized kits? I didnt find them on CPP..?
Thanks for all your help BTW |
11-29-2009, 12:18 PM | #8 |
Bad *** Speller!
Join Date: Oct 2009
Location: Columbus, Ohio
Posts: 1,338
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Re: 89 Flathead died....
give scotty or mike a hollar they g\can lead you in the right way. i dont have scottys number, but i know that if you pm him(private message) he will help out as much as he can. no tto be rude, but listen to theses guys, they have been doing this for a while, dinosaurs asked them for help! so if they make a suggestion, at least try it so when they say to check it they can know where to go!
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11-29-2009, 12:24 PM | #9 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
|
Re: 89 Flathead died....
Just pop the valves out and lap them back in to freshen up the seats and you should be good to go..... post the results of that compression check 1st Remmber to crank it at Wide Open Throttle for the test.... repeat a few times to verify the results.....
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11-29-2009, 12:31 PM | #10 |
Gone Wild
Join Date: Jun 2008
Location: LINWOOD, MI
Posts: 1,362
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Re: 89 Flathead died....
Not trying to be that guy!!! But if you want I have the oversized pistons and rings @ the shop. Call me if you want 989-992-7601 I will hook u up on a good BGW price!!!
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