Bad start for the Swedish season! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 15 (permalink) Old 05-22-2007, 10:33 AM Thread Starter
 
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Unhappy Bad start for the Swedish season!

Hi Vulcanpeople! Finaly i got my bike out off the wintersleep and i wanted to hear the beautiful sound from the "twinns". Strted on the first try after 32 weeks of sleep and sounded great, at first. After 1/2 hour i started to hear a ticking sound from the engine and i was thinking "tensioner". After taking them out ,take a god look, put them back (they are new) the noise was still there. Now it seems to come from front cylinder top and i wonder if som of you people can give me a tip what it can be! Valve, lifter, camnock?, or can the camchain be too long so the tensioner cant reach it enymore?
Again sorry for my bad eanglish!M.T
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post #2 of 15 (permalink) Old 05-22-2007, 10:55 AM
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Howdy, and welcome back to the "riding" after winter club! You said your tensioners were "new". Are they automatic tensioners? How old is the bike? If the tensioners are new, and auto's, I'd remove the 10mm cap screw and turn the inside shaft with a small screwdriver or screwdriver bit, clockwise and let the spring snap the adjusting plunger back. It's called the grambo trick. See if the noise quiets down. If it does, then the adjustors were just stuck. If the tensioners are manual adjusting, and you've adjusted them, maybe you haven't adjusted them correctly? I personally couldn't get mine adjusted to where the noise went totally away so I bought new springs and rebuilt my autos and put them back on and the noise is gone. Let us know more info!

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post #3 of 15 (permalink) Old 05-22-2007, 12:53 PM Thread Starter
 
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The bike is an -87 with 55200km (i dont know miles) and yes, it is automatic tensioners and i did do the grambotrick, but no results. The noise is loudest at 4000rpm and only when i am driving, on idle it`s only the regular noise. i heard that 750 is a engine that is not al quiet even when it`s healthy!? To open the engine and check the camchains, is that much job? Do i have to lift it out off the frame?
M.T
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post #4 of 15 (permalink) Old 05-22-2007, 01:00 PM
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When you did the grambo trick, did the spring seem to have good tension, and spring back with force? It might be that you need to add a turn of preload to the spring. I don't really know. Bikes make noises that are hard to trace, especially when they only do it at 4K. It could be vibration of something under your tank etc. Could be internal too, but hard to tell. Anyone else have ideas?

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post #5 of 15 (permalink) Old 05-22-2007, 01:14 PM Thread Starter
 
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Yes, when i let the spring go i herd a little "bang" so i think it`s ok. But correct me if i`m wrong here, if i take out the tensioner and let the bolt go out as long as it can, and then try to put it back, if it`s going al the way in, that must mean the chain in to long, and if it`s not the tensioner and chain are ok?
M.T
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post #6 of 15 (permalink) Old 05-22-2007, 01:17 PM Thread Starter
 
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By the way. I posted a picture in the gallery. The is old:-)
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post #7 of 15 (permalink) Old 05-22-2007, 01:17 PM Thread Starter
 
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SHE is old.
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post #8 of 15 (permalink) Old 05-22-2007, 08:43 PM
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Quote:
Originally Posted by EuroVulcan View Post
Yes, when i let the spring go i herd a little "bang" so i think it`s ok. But correct me if i`m wrong here, if i take out the tensioner and let the bolt go out as long as it can, and then try to put it back, if it`s going al the way in, that must mean the chain in to long, and if it`s not the tensioner and chain are ok?
M.T
I'd have to agree with that. If the cam chain is ok, and the tensioner is in good shape, you shouldn't be able to install the tensioner without turning in the plunger quite a bit to allow it room to fit against the chain. If it goes all the way in unsprung, then I'd say your chain is stretched too much.

Fergy
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post #9 of 15 (permalink) Old 05-23-2007, 03:24 AM Thread Starter
 
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Ok, thank you, i will try that this weekend and let you know:-))
M.T
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post #10 of 15 (permalink) Old 05-24-2007, 09:50 AM Thread Starter
 
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Hi. I went out this morning and tryed my theori and it worked, a can`t push the tensioner in without rewinding the spring, so i guess the chain is still good.
And i called a manufactor nearby and he said he can make me new springs if i take my old ones there. So there is still hope!
M.T
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