Johnny,
The pumps like this that I have used in the past did not have internal
check valves. When I checked the Mr Gasket literature and spec today
online it did not indicate an internal check valve is present, only a
filter is provided in the box. I also checked with Jeg's tech line and he
confirms that these pumps do not have an internal checks. If you do have a
link or short cut to such information please confirm.
https://www.jegs.com/i/Mr-Gasket/720/12S/10002/-1
https://www.jegs.com/i/JEGS/555/15928/10002/-1
J.R. Wright
GMC Great Laker
GMCGL Tech Editor
GMC Eastern States
GMCMHI
TZE Zone Restorations
78 Buskirk Custom 29.5' Stretch
75 Avion (Under going Frame up Restoration)
On Tue, Jan 21, 2020 at 7:31 AM Johnny Bridges via Gmclist <
> If you use the Mr Gasket pump(s) no external check valve is necessary -
> they have built in checks.
>
> --johnny
> --
> Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> I forgive them all, save those who hurt the dogs. They must answer to me
> in hell
>
>
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