Synching the carbs - old school

[poolboy]

Thanks, Randall. When I had surgery for sleep apnea, the Doc said even if she deafened that ear, I'd still hear the ringing. Weird..

 

[2wrench]

Thanks, Randall. When I had surgery for sleep apnea, the Doc said even if she deafened that ear, I'd still hear the ringing. Weird..

Sorry to hear that, Poolboy. What happened? Military duty?

 

[foxtrapper]

I confess I never really knew how the "hose trick" worked. Does one listen for volume or pitch? (I'm hoping it's the latter, since I happen to have perfect pitch, but I also have some loss of hearing in one ear, so volume might be harder for me to judge. :wink: )

It's volume Andrew, but you don't normally do it with two hoses, for virtually all humans have unbalanced hearing.

I've done it, and can do it, but I don't like it. The noise is hyper sensitive to angle of the hose, depth into the throat of the carburetor, etc.

You get a semi-decent aproximation of consistency by holding the hose in one hand, and using the knuckles to set how far you jab it into the carburetors as you go back and forth between them. Same the other hand and your ear. Just like you see in the pictures in the manuals.

 

[poolboy]

Sorry to hear that, Poolboy. What happened? Military duty?

Thanks 2, There are some other guys here that have it ,too. Last time I mentioned it, I found that out.
It wasn't the military, but I suspect gunfire did get it started. It was about 40 years ago when I noticed that the ringing wasn't going away.
Here's a link about it.
https://en.wikipedia.org/wiki/Tinnitus

 

[Don Elliott]

The ringing in your ear is really the flow of the blood circulating through the veins in and out of the ear area. That's what you're hearing. If you don't hear any more ringing, then it's like you have no more oil pressure and no more oil flow. The engine is finished. If this happens to you, have your funeral on a Thursday. That's my only day off.

I have used the hose technique for 50 years to sync. the carbs on my 1958 TR3A. If the volume flow is different, one carb will "hiss" and the other carb will "woosch". You disconnect the thingy between the carbs abd re-set one till you hear the same "hiss" from both inlets. Then you lock the thingy and check again for the "hiss". Many times, just tightening that thingy is enough to upset the "hiss". So you start again, till it's tight and you hear the same "hiss" from both carb inlets.

First I remove the air filters. I stand to the side of the car and hold one end of the hose with one hand close to my ear. For the far end I hold the outside of the hose right next to the open end of the hose between my finger and my thumb. But the first finger is out a bit beyond the end of the hose and I place this finger tip against the outside of the carb casting (usually under) and I put the open end of the hose against the front machined face of the carb casting where 90% the hose is at (but not in) the entrance of the inlet of the carb.

Since I'm standing to on the side of the car, I move my upper body in a rocking motion so the end of hose is now at the same place at the inlet of the other carb. I can swing my upper body back and forth from one carb inlet to the other to hear the correct "hiss" at both carb inlets.

Don Elliott, Original Owner, 1958 TR3A

 

[TR3driver]

The ringing in your ear is really the flow of the blood circulating through the veins in and out of the ear area.

I beg to differ, Don. There are several causes of tinnitus, but the most common problems are either the sound receptor cells themselves, or the nerves that carry the impulses. See for example
https://www.houseearclinic.com/tinnitus.htm

Although I don't disagree with the rest of your statement; I would like to say that IMO it's just not that important to get synchronization exactly right. Even if the airflow is measureably unbalanced, the engine will still idle well enough and make just as much power at full throttle. I frequently don't even bother with a hose (or the SU tool kit), just hold my good ear down near the carb intake.

 

[Don Elliott]

Thank you Dr. Young. As usual, you have a vast background covering numerous subjects. How do you do it ? I think that's fantastic.

Now we know the rest of the story.

 

[poolboy]

Now we know the rest of the story.

I remember Paul Harvey saying he had it too.

 

[Tinster]

Thank you Dr. Young. As usual, you have a vast background covering numerous subjects. How do you do it ? I think that's fantastic.

Now we know the rest of the story.

Who is Dr Young??

d

 

[Moseso]

Tinitis is the same as "Phantom Limb" pains in amputees. Destruction of the receptors and nerves in the inner ear result in a sense of sound that isn't really there. I have it too. Years of working in production wood shops coupled with years of playing amplified music proved too much for my ears, in the end. I can't hear crickets in my right ear, but I can always hear the "ring."

My left is still good enough for the hose trick -- but, I get totally adequate results with the cat whisker tool. So, for all of that, I could be stone deaf. Glad I'm not, though, so I can hear the lovely exhaust note of my TR3.

 

[TR3driver]

Glad I'm not, though, so I can hear the lovely exhaust note of my TR3.

Amen to that !
Don, all I can say is that I seem to remember some things; like why my ears used to ring constantly; even though I can't remember what I had for breakfast.

BTW, I heartily recommend the House Ear Clinic (link above) to anyone in So CA with hearing problems. After a year of my local ENT fiddling around (including a mastoidectomy that I didn't need); Dr. John House had me hearing again within days. Using the medicine he invented, along with the applicator he invented

I haven't kept up, but they were working on techniques to help even people with nerve deafness.

 

[foxtrapper]

Tinitis is the same as "Phantom Limb" pains in amputees. Destruction of the receptors and nerves in the inner ear result in a sense of sound that isn't really there.

But it's not always that simple either. Friend of mine who was born stone deaf had tinitis severely. It was the severing of the nerves when the cochlear implant was installed that finally stopped the bells. His tinitis was very motion sensitive, as every step he took set those bells clanging.

Mine is a near ultrasonic shreaking that comes from behind me. Coupled with an occassional heavy muffling and warping of sounds. Sporatic clacking and hammering occur as well.

And then there's the sense of balance that can run with tinitis. When the sounds start warping, I'd better be seated. For I often cannot stay standing when the sound warps.

 

[2wrench]

I just don't know what to say. Sorry for your discomfort(s). This
condition must be very frusterating. I am left to prayer and hope for
the best possible days ahead.

But then, on a positive note, nothing has stopped you from being here and
having something to offer. Gotta tell you, I sure do appreciate my friends
on the Forum.

Best wishes for all that makes you happy,

 

[poolboy]

Thanks again. I've learned to live with it, just like needing glasses.

 

[Don Elliott]

Tinster - "Dr." Young is Randall Young who always has a most interesting answer on any subject.

 

[Tinster]

Hey Don-

I also suffer from tinitis for almost a year now and
it makes driving at night very difficult.

My neurologist says "live with it" - I've got other
health issues more important to deal with. My tinitus
is brought to me from a lesion growing in the right frontal lobe.

I live with it!

d

 

[poolboy]

Sounds like we need to form a tinnetus support group around here.
https://www.ata.org/

 

[RonMacPherson]

Up your vitamin C and D intake. Make sure your consumption of aspirin and Excedrin is kept to a minimum..

These help a little, but with most tinnitus that is noticeable..... I like the last poster's link, maybe some time spent there will help.

I read that Smokey Yunick had an ear operation, this would have been a couple of decades ago, that corrected his hearing, increased auditory reception and lessened his tinnitus...

Anyone know about that?

 

[Moseso]

Tinnitus is definitely an "aging Boomer" phenomenon. A lot of us spent a lot of time with loud music.

I haven't tried this yet, but I have heard some good reports: There is a computer program called "tinnitus tamer" which is, essentially, a bio-feedback training regimen said to be good for people with the noise-damage type of tinnitus that I have.

 

[poolboy]

I did take lipo-flavonoid tablets for nearly a year and the volumn decreased, only to return when I forgot to bring my ear muffs to a job where we were using a 3 inch pump to drain a pool. Bummer.