Engine ting
 

...for lack of a better word, I suppose..I noticed my engine on my 147 (14 HP) was tinging at a certain low idle speed, and I'm not sure what it is.

https://www.youtube.com/watch?v=kYjl...ature=youtu.be

I thought it might be the link connecting the carb to the governor since it flops like crazy when the engine is running, but I'm not sure. I also don't hear anything out of the norm when it's running on high idle. (using it while mowing today).

I've got the springs on my mech. PTO installed too.

:bigthink:



Thanks

I think I hear what you are talking about.... but not sure. :bigthink:


A few things that I can think of:
The muffler looks new. Some of the cheaper mufflers have a more "tinny" sound.
Could be a leaking exhaust valve.
Could be the rotary screen broken loose from the flywheel. (I had one do that and I like to have never figured out where that noise was coming from.)
I know you just rebuilt the driveline, but is the pin tight on the coupler on the back on the motor.
Could be something hitting the flywheel. Perhaps you changed out a bolt on the flywheel tins and used one that's a little too long?


What are the last 5 or so things you did to it, and when did this noise start? All at once, or you noticed it after a repair?
It's not the governor linkage.

Sounds like its just too low an idle. Give the idle screw a couple turns and see if it stops making noise. I know a lot of engines will make weird noise if they are run to slow. But it might be something hitting the flywheel or the drive pin to sloppy or maybe the muffler like Jon said. Hope this might help!:beerchug:

I replaced the drive shaft pin when I worked on it this spring, and I noticed the coupler was worn in the usual places. The muffler was new last year. I'm not thinking it's any flywheel issue since I haven't done any wrenching on it there, plus the flywheel screen is tight.

Thanks guys.

I'd check that coupler and around in that area. I watched the vid too. Don't know without looking it over in person and trying to diagnose it. Always try simple first.

If you bring the rpm's up a little does it quit?

[QUOTE=Justin Witt;335967]Sounds like its just too low an idle.[QUOTE]

Idle speed sounds fine to me. I'd say its between 900 and 1000 rpm.

Can't hurt to turn it up some. A little higher idle is better than lower with these splash lubed engines.

But from what I'm getting at, it seems it only ticks or whatever the noise is at low idle...

My 127 did this also... I found that one of my engine shrouds (the head cover/muffler support was just ever so slightly loose and my oil dipstick "cap" i guess you could say was broken from the dipstick and rattling around ...may not be your issue but from the video it sounds the same to me I fixed both at the same time and no more weird ting sound

I think I hear the higher pitched "ting" you describe, almost sounds like a internal muffler baffle. try a stethoscope or screwdriver on it and put it to your ear,
use a long one Ha,LOL! or a piece of wooden dowel
It does sound external.
Also on the mule drive, check the belt adjustment/wear indicator on the right idler pulley, they give that sort of rattle if loose.:bigthink:

Thanks guys.

This wasn't at actual idle. It idles slower than that no problem.

The noise goes away at higher RPMs.

Y'all have given me great places to check for loose bolts, nuts etc. Thanks. On a 45 YO machine it's a surprise to think that something might be worn and/or loose. :biggrin2:

That is also my opinion.

One thing about it, these ole Cubs like to rattle! My 1200 is always rattling engine tins. Side panels, tunnel cover, clutch you name it! Lol I've tried loc-tite on muffler tin bolts drilling and tapping for more bolts and they still rattle. About ready to go with solid mounts!

Figured out the noise.

it's the muffler.

I put a long wooden dowel (ok a hoe handle) on the end where the elbow connects while it was running making the noise, and it went away. Remove the dowel, and it makes the noise again.

Stupid little things are great aren't they?

So handling yer "ho" makes the "ting" go away,---- sum-ting-wong with yer china muffler, Ha,LOL! :biggrin2:

:ROTF2: :beerchug:

I've heard three wheelers make similar noises. It was just valves ticks. But those are over head cam engines. These are flatheads. So I really don't know.

Hope you figure it out. :beerchug:

Flat heads make valve noise just like that. But he already said that it was the muffler.

I see. Strange noise for a muffler to make lol. I guess I didn't read in depth enough. :beerchug:

Well depends on how the muffler is made, like what kind of baffles are in it.

Really?
Explain that would you please....:popcorn::popcorn:

I know you already know and this is just a test. And I know whatever I would have said you would have said "nope wrong, try again" like last time, and many times before that. If the other guy wants an explanation, I'll PM them, or if anyone else wants an explanation, I'll PM them.

I want the explanation. Pm me. I'd really like to hear what kind of baffles would be more prone to make a "ting". Or even and explanation of the different types of baffles......

This is just baffling me.....

Come on lew thats terrible lol.

You know, the Tingy baffles. Special order, but USPS doesn't deliver.

Ok.......:HeadScratch:

LMFAO :ExtremeFunny:

Ting Tang walla walla bing bang :biggrin2:

Engine ting
 

Well I listened to your movie.
This is what I came up with.
The engine is muffled really well. The sound you hear is normal operational sounds of a really experienced engine running really well. I would conclude that if you don't like the way it sounds then muffle it less so you can't hear the engine run. But to me this sounds like a cub running very well.
olesalt

I've had a couple of those mufflers where the crimped end cap of the muffler wasn't tight and made that noise. Just take a pair of vice grip pliers and pinch the crimp tighter and see if the noise go's away.

thanks guys...great tips. She burns a bit of oil, but isn't tired, and still works great. (knocking on wood)