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Posted By: Steven C. G & B 176 vs G & B 176 dual - Tue Jun 16 2020 12:57 AM
Can anyone explain this to me please.
My cylinder measures 12 1/2 x 26
What is this "dual"?

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Posted By: gasmansgp Re: G & B 176 vs G & B 176 dual - Tue Jun 16 2020 10:29 AM
Maybe double model, which I have never see? Don't know, but you need 12.5 x 26. Paul www.severngaspumps.com
Posted By: Rabbitman Re: G & B 176 vs G & B 176 dual - Tue Jun 16 2020 03:17 PM
I have one of these and I always thought the dual meant a dual action pump instead of a single stroke type. That's just a guess. I never saw one with dual jugs so I don't think that's what it means. Jack should know....? I also had a 177 that had the 24" cylinder and there's not much difference in them except for the access door size....GB
Posted By: Jack Sim Re: G & B 176 vs G & B 176 dual - Tue Jun 16 2020 04:58 PM
While I added a few of the cylinder measurements to that section of my Gas Pump Bible, most of it came from Tim Rohr. I thanked him for the contribution on the first page of that section.

My book says "Dual Piston" not dual action.

Jack Sim
Posted By: Steven C. Re: G & B 176 vs G & B 176 dual - Wed Jun 17 2020 12:12 AM
Well, I know my cylinder measures 12.5 x 26, but just for the sake of the conversation here, I only see one pumping piston housing. Or at least what looks to me like only one.
Can anyone give me the breakdown on the serial number?

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Posted By: Rabbitman Re: G & B 176 vs G & B 176 dual - Wed Jun 17 2020 01:02 AM
I don't think the number on that tag is a serial number. The bluebook I have lists the 176 serial numbers as 539009-809698. Not sure if the serial number was on another tag on those or not. The oval tag like yours pictured was half gone on mine but the rectangular Underwriters Laboratory tag was on it and there is a six digit No. on it that starts with 643... Maybe that is the serial number? It would fall in the range above. My pump looks just like yours, a single cylinder. The date of manufacture of the 176 is 6-20-31 - 12-16-38 inclusive according to the blubook. That's it for the info I have....GB
Posted By: Steven C. Re: G & B 176 vs G & B 176 dual - Mon Jun 29 2020 03:06 PM
just to answer this properly, from Jacks site.
The dual, is dual action pumping with both the stokes of the handle.

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