Primer pump

[Swampy69]

Do D22 ZD30 primer pump have a seal around thread like ZD30 Patrol pumps.

 

[tweak'e]

Do D22 ZD30 primer pump have a seal around thread like ZD30 Patrol pumps.

no.
by memory that seal was a red hearing. the filters seal on the thread anyway and it doesn't really matter if it leaks due to the outer seal.
typically its the plunger itself that leaks allowing air to be sucked in. thats crimped on and not replaceable.
also don;t forget the bottom o ring, sometimes people forget to change that when they change the filter.

i cut it off and welded a plate over it, then installed an outbought motor style primer back at the tank for priming.

 

[Swampy69]

Yes I put one on too right next to it looks factory will have to block off original primer as well. Had no hope with original.