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SOHC.co.uk Forums => Recommended Sources for Parts and Services => Topic started by: McCabe-Thiele (Ted) on October 14, 2023, 05:27:20 PM

Title: Carb vacuum gauges for 400 & 500
Post by: McCabe-Thiele (Ted) on October 14, 2023, 05:27:20 PM: I'm hoping my BiL has a set I can borrow in the new year so I can improve on bench sync process on the 500.

I've looked at previous posts as to reasonable quality gauges but quoted item numbers are out of date. My Ultrasound Bath is a Vevor - still going strong so wondered if anyone here has used these?

.https://www.ebay.co.uk/itm/204051398442
Title: Re: Carb vacuum gauges for 400 & 500
Post by: K2-K6 on October 14, 2023, 05:54:47 PM: Morgan carbtune Pro. They've nothing in the way of internal mechanical calibration concerns.

I'd not used these in modern iteration (thought they originally were Mercury content years ago ) but with Bill's set on his 400 four, they were really effective, simple and very easy to work with .

Impressive that they were very responsive and repeatable to work with. Definitely worth consideration in my view Ted.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: taysidedragon on October 14, 2023, 06:08:59 PM: Plus 1 for the Morgan carbtune pro. I've got one and it's good quality and easy to use.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: Bryanj on October 14, 2023, 06:55:12 PM: Visualy those gauges look a bit poor quality to me Ted, i have Sealey ones ebay item 203841601385 (i cant do links!) but they are over 3x the price, also nearest thing to genuine Honds ones i have ever seen
Title: Re: Carb vacuum gauges for 400 & 500
Post by: McCabe-Thiele (Ted) on October 14, 2023, 07:39:07 PM: Thanks for the input folks I'm off to Stafford Show tommorow with the BiL so I'll see what he has before I decide if I need my own set.

Daft question but are the gauges just for the air screw adjustment or for the setting of the sliders being more accurate than bench sync?
If so I'll need to have the tank off to access the slider adjustmets - not used my little header tank yet.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: Oddjob on October 14, 2023, 07:51:50 PM: Just for slider adjustment Ted so yes you'll need the remote tank.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: K2-K6 on October 14, 2023, 07:53:24 PM: Parity of slides based on vacuum measurement of the intake tract between the slide and piston/combustion chamber.

Yes, access to top of carbs necessary, unless you belong to the magic circle ;D in which case you need a black cloth :)

Chance to initiate your remote fuel supply definitely.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: McCabe-Thiele (Ted) on October 14, 2023, 09:18:25 PM: BiL says via WhatsApp he has a set of gauges - told him not needed for a few months as amongst many other things I have no exhuast system atm.
Title: Re: Carb vacuum gauges for 400 & 500
Post by: Laverda Dave on October 15, 2023, 12:10:23 AM: If Sealey have a stand at Stafford they usually offer 'show special discount' on their tools. DSS usually offer free postage at shows.