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Old 22 May 2013, 10:54   #1
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Country: USA
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Length: 7m +
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Timing belt yanmar 6LP

Timing belt is overdue to be changed. Would Gladly have it done by dealer but 3hr drive.

Anyone on here ever changed one,any good advice or tips would be appreciated.

Yanmar 6LPA-STZP
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Old 22 May 2013, 12:12   #2
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Drop the coolant out there is a drain tap on the block just above/ the starter motor , Take the water manifold from front of the engine so you can gain access to the timing belt undo the 10mm bolts securing it, once you have the cover off you will see a timing mark on the cam sprocket by turning the crank pulley with bar an 32mm socket this needs to line up with the mark the timing case at 12 o'clock position which is BDC (bottom dead centre ) not tdc an also check the notch on the fuel pump sprockets is a line. Now remove the the auto hydraulic tensioner that's secured by 10mm bolts . Remove belt and fit new(25/105) make sure the longest edge is tight. To reset the tension you need to put in a vice with soft jaws an notice there a hole in the adjust shaft an body slowly clamp tensioner until the hole in shaft an the body of the tensioner align and put an Allen smaller enough to lock it . Re install tensioner with thread lock on the bolts. Once you are happy with belt is tight at the longest edge an the marks are correct pull the lock toll out of the tensioner that's tensioner set. Do a full 360 rotation on the crank making saw the engines doesn't lock and the timing marks realign . Job done. Reinstall manifold ect .
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Old 22 May 2013, 16:14   #3
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Thanks yam man for your advice appreciate it.
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Old 22 May 2013, 16:18   #4
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I hope it helps
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Old 19 June 2013, 17:56   #5
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Changed belt out over wk end.That helped alot yam man.
Yanmar Manual made it seem complicated,you made it sound simple which it was.

Thanks again
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Old 19 June 2013, 19:03   #6
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Glad It helped you out
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Old 12 January 2016, 02:23   #7
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yanmar 6LP timing belt replacement

Hey Yanman. Does coolant transfer tube on 6LP come off easy. Can see in pics one end has hose connection . What holds other end on? Cheers Larry.

Looking to buy boat but only have pic.

Would add pic but not sure how>
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Old 12 January 2016, 03:19   #8
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Quote:
Originally Posted by lazza803 View Post
Hey Yanman. Does coolant transfer tube on 6LP come off easy. Can see in pics one end has hose connection . What holds other end on? Cheers Larry.

Looking to buy boat but only have pic.

Would add pic but not sure how>

Hi Larry , doesn't have to come completely off . You can swing it out the way .

Graham
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Old 13 January 2016, 01:27   #9
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Thanks for that. I am going for another look on Friday.
Engine is 1998 done 750 hrs, sounds sweet but found out from local yanmar agent that belt should be changed every 1200 hrs or 5 years.
This belt has been in for15 years. I am taking boat as a trade for one I am selling. Guess I should get belt done before going too far
http://www.tradeaboat.co.nz/detail/m...-coastal/89409.
Cheers
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Old 13 January 2016, 01:37   #10
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Me again. Can you tell from pics What model it is? This add says 230 hp.
The other mag it has been advertised in says 260 hp. Any ideas? Cheers
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