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Return to: LTZ400 / LTZ250 / LT230 - Engine |
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#Post#: 16223-------------------------------------------------- |
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1987 LT230EH knocks |
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By: Kyle T Date: April 23, 2013, 10:38 am |
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Hey guys. |
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I've got an 1987 LT230EH with an engine knock. I've taken the |
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engine apart and measured EVERYTHING that the OEM manual told me |
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to, and it's all within spec. Any thoughts? |
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#Post#: 16234-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Rider414 Date: April 23, 2013, 1:33 pm |
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Post a video of said knock. |
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Its a knock and not a tick? |
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#Post#: 16235-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Gillio Date: April 23, 2013, 1:43 pm |
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Whats the timing chain and tensioner look like? |
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#Post#: 16239-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Kyle T Date: April 23, 2013, 3:12 pm |
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I can't post a video, she's in pieces. _^_ |
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Timing chain is in spec and has very little side to side play, |
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and sprocket/crank are real healthy, with no chain movement. The |
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tensioner seems fine, but they don't talk about how to test |
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them. |
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#Post#: 16240-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Rider414 Date: April 23, 2013, 3:27 pm |
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If it all looks good including the rotating assembly - put it |
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together and run it. |
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#Post#: 16242-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Gillio Date: April 23, 2013, 3:43 pm |
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I don't believe there is any plain bearings in that engine to |
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cause a "knock" from oil pressure or worn bearings. Maybe |
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something loose in the drive line ; clutch basket, primary gear, |
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or even a loose ball skipping around in a bearing. |
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#Post#: 16247-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: VoodooChassisWorks Date: April 23, 2013, 5:49 pm |
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Worn cam or cam journal could be the culprit. |
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#Post#: 16250-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: Kyle T Date: April 23, 2013, 6:26 pm |
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I did that 414. After I threw a bore and rod at it. I wasn't |
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happy. I gotta find out what's making that sound in there! |
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Gill, you are correct. No plains. I'll check that stuff. +k2 |
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I checked the cam clearance first VDCW. 2 to 2 1/2 thou. Service |
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limit is 6 thou. Damn I says. I bought a head for it too. |
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#Post#: 16251-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: WestTexasKing Date: April 23, 2013, 6:59 pm |
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Perhaps the culprit is in another area of the engine, like the |
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transmission or clutch packs? |
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#Post#: 16254-------------------------------------------------- |
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Re: 1987 LT230EH knocks |
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By: zilla273 Date: April 23, 2013, 8:18 pm |
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i had a 230 quadsport( manual clutch) that sounded just like the |
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rod was knocking, but when u pulled in the clutch it stoped, |
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turned out the clutch basket was worn and the clutches were |
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chatering, im quessing yours is semi auto? dont they still have |
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a clutch pack behind the automatic clutch? 2c |
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