Page 2 of 2
Re: New Vibration
Posted: Tue Mar 15, 2011 7:12 pm
by Deleted User 287
Garnet wrote:
I can feel the power pulsing through my veins already.
The reason for my laughter was I made my own back in the 80's from some threaded rod and a couple of the spark plug caps that we all throw away when we install a new set of plugs.
Re: New Vibration
Posted: Tue Mar 15, 2011 10:44 pm
by Garnet
They where the first BMW tools I made. I used them once and found out how good the coil was on that side

.
They flew across the shop to never be used again.

Re: New Vibration
Posted: Wed Mar 16, 2011 12:43 am
by Chuey
Man, all I could think about when I read the title of this thread is the Beach Boys!
Chuey
Re: New Vibration
Posted: Wed Mar 16, 2011 4:56 am
by Roy Gavin
There are a few ways to check carb balance, or to set deliberate imbalance to equalize running.
By ear, feel on when the butterflies move, mercury sticks or the $4- equivalent, Twinmax, Carbtune, plug shorting and a flow meter similar too the Synchrometer. And probably some I've never used.
I haven't tried the shorting method, but I have found that precise setting of the butterflies and cable free play or by ear gets as close as the Twinmax or the Carbtune, the $4- special is better than the Carbtune, and a flow meter gives a different reading to a vacuum gage.
And it all goes out of tune before too long.
My seat of the pants feel says the flow meter works best for me - anyone know of a comparison done on a dyno , and how the shorting method compares to a flow meter.
The OEM BMW mechanics tool kit was reputed to contain a couple of flow meters, so the factory seems to have an opinion---.
And iwhen chasing a roughness don't discount a plug cap breaking down above a certain revs - if the cold resistance is not spot on the stated value junk it- DAHIK
Re: New Vibration
Posted: Wed Mar 16, 2011 3:06 pm
by enigmaT120
justoneoftheguys wrote:Good thing Duane isn't dead - he'd be spinning in his grave.
But we could hook up a dynamo and generate free electricity!
I love that kind of humor, where it startles me into laughter.
Re: New Vibration
Posted: Wed Mar 16, 2011 3:15 pm
by Deleted User 62
Chuey wrote:Man, all I could think about when I read the title of this thread is the Beach Boys!
Chuey
Actually, it was Tommy James and the Shandells song that kept going through my mind:
http://www.youtube.com/watch?v=LN38vED24Eg
Re: New Vibration
Posted: Wed Mar 16, 2011 3:17 pm
by Deleted User 62
Roy Gavin wrote:There are a few ways to check carb balance, or to set deliberate imbalance to equalize running.
By ear, feel on when the butterflies move, mercury sticks or the $4- equivalent, Twinmax, Carbtune, plug shorting and a flow meter similar too the Synchrometer. And probably some I've never used.
I haven't tried the shorting method, but I have found that precise setting of the butterflies and cable free play or by ear gets as close as the Twinmax or the Carbtune, the $4- special is better than the Carbtune, and a flow meter gives a different reading to a vacuum gage.
And it all goes out of tune before too long.
My seat of the pants feel says the flow meter works best for me - anyone know of a comparison done on a dyno , and how the shorting method compares to a flow meter.
The OEM BMW mechanics tool kit was reputed to contain a couple of flow meters, so the factory seems to have an opinion---.
And iwhen chasing a roughness don't discount a plug cap breaking down above a certain revs - if the cold resistance is not spot on the stated value junk it- DAHIK
Hmmm, you may be on to something there. As I said, there was a slight mechanical rattle when the vibration started. I will check those plug caps, etc!