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Top end noise.

deafanddiabetic
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Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Top end noise.

Post by deafanddiabetic » Wed Jan 28, 2015 6:24 pm

I figured it's worth starting a new topic for this instead of ballooning my old one.

I've got top end noise. Way more noticeable at idle, doesn't seem to happen during acceleration. It's not fast and tappy enough to be the valves, and given the new pistons, rings, keepers, rods I don't THINK it's piston slap. But it does sound like can chain noise, maybe? I have set it by loosening bolt, turning to T Mark them tightening bolt. I can see the cam chain arm stud move back and forth while turning engine, and after locking the nut it doesn't move anymore.

Here's a video:

http://youtu.be/xfqBoyznAQQ

deafanddiabetic
honda305.com Member
Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Wed Jan 28, 2015 6:44 pm

Sorry about that, forgot to take the video off private. It works now.

deafanddiabetic
honda305.com Member
Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Wed Jan 28, 2015 8:05 pm

It's definitely my cam chain.

I've cleaned and played with the adjuster several times but tonight I realized how worn that black rubber "triangle" is. The spring won't push back because the metal nipple/dome thing gets stuck trying to slide up that triangle which now looks like an L shape.

When I rotate the engine with the lock nut loosened, the arm does not move at all. Can you replace parts on a cam chain adjuster?

LOUD MOUSE
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Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Wed Jan 28, 2015 8:18 pm

It is a unit and parts are not changeable.
Ya will need to get another
Send a pic?. . .....lm
deafanddiabetic wrote:It's definitely my cam chain.

I've cleaned and played with the adjuster several times but tonight I realized how worn that black rubber "triangle" is. The spring won't push back because the metal nipple/dome thing gets stuck trying to slide up that triangle which now looks like an L shape.

When I rotate the engine with the lock nut loosened, the arm does not move at all. Can you replace parts on a cam chain adjuster?

deafanddiabetic
honda305.com Member
Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Thu Jan 29, 2015 12:03 pm

If I feel inside the tensioner hole, I can move my chain around quite a bit left to right. I can feel it grabbing the lower roller guide, although even that slides a little left and right.

I did purchase a new cam chain for this during my build, it's a 94 link. It was tight as hell to get on the top sprocket, but after cranking everything down is that movement normal?

deafanddiabetic
honda305.com Member
Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Thu Jan 29, 2015 8:34 pm

Here's some pictures.

One is showing how loosely and awesomely the spring can contract, it's in fine shape.

But roller wheel looks pretty dull and that triangular plastic is dipped really hard.
Attachments
IMG_20150129_192723247.jpg
IMG_20150129_192723247.jpg (199.58 KiB) Viewed 2903 times
IMG_20150129_192754341.jpg
IMG_20150129_192754341.jpg (205.37 KiB) Viewed 2904 times

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Thu Jan 29, 2015 8:41 pm

It's junk.
You need a better one for sure. ..........lm
deafanddiabetic wrote:Here's some pictures.

One is showing how loosely and awesomely the spring can contract, it's in fine shape.

But roller wheel looks pretty dull and that triangular plastic is dipped really hard.

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