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General Category => General Discussion => Topic started by: rjamesohio on October 10, 2019, 03:42:19 AM

Title: 1100i tach counterweight weight
Post by: rjamesohio on October 10, 2019, 03:42:19 AM

I realize the title sounds a bit redundant but let me explain...

There is a counterweight on this particular Veglia tach that apparently has a habit of falling off, then the tach needle just sits around redline but doesn’t respond to Engine revs.

I pulled the tach apart and unfortunately the counter weight exited the light hole and is hiding from me somewhere. There is a round hole on the mechanism where it originally sat; I’m  wondering how scientific the specific weight needs to be as a weight could be fashioned and epoxied in place.

Obscure information I’m  sure but has anyone tried fashioning a replacement weight with luck?

Title: Re: 1100i tach counterweight weight
Post by: Chuck in Indiana on October 10, 2019, 06:49:27 AM

Don'tcha hate it when something like that happens? Not that I've ever done anything like that..  :grin:
bump to the top.

Title: Re: 1100i tach counterweight weight
Post by: Kiwi_Roy on October 10, 2019, 07:06:42 AM

I was lucky to find mine on the garage floor so I didn't have to,
Perhaps start by twisting something up from rosin core solder, tilt the tach back and forth clipping bits off until it balances.

Title: Re: 1100i tach counterweight weight
Post by: wirespokes on October 10, 2019, 10:41:48 AM

I'm not familiar with the Veglia counterweights, but am with the Motometers. They changed over the years - in the early 70s they were small brass thick washers. Then they were molded into the hub. And finally in 78 the needle hubs were plastic with a light weight needle made from beer can thickness aluminum. No counterweight. I've never experienced the phenomenon you mention of the needle going to max and staying there because the counterweight was missing. Seems odd to me. I'd think, without the counterweight, the needle would jitter and shake a lot, not read max and stay there.

I think your easiest solution is like Roy says - solder. Perhaps find a washer with an inner diameter about what you need for the outside D. Use it for a form to melt some solder.

If I remember, I'll take a look today at one of my spare Veglias and get back to you.

Title: Re: 1100i tach counterweight weight
Post by: rjamesohio on October 10, 2019, 05:36:08 PM

I’m kinda wondering if I could play with clay until the needle zeros out then weigh it And make a counterweight to permanently Affix...

Title: Re: 1100i tach counterweight weight
Post by: LowRyter on October 10, 2019, 05:57:46 PM

about like a nickel, give or take a dime.