Author Topic: Power glide pumping fluid from vent (Read 6551 times)

hemidakota · « **on:** December 20, 2019, 07:01:55 PM »

Well my cousin has a hughes glide in his racecar, never been ran. Had trans torn down by a builder to get case recert, trans guy reassembled. Started car for first time and it instantly started pumping fluid out of vent. Took back to builder and he said he put pump gasket in wrong and fixed it. Fired up car again and as I was adding fluid it started pumping out vent again so there is a problem still. I have built a few glides and never experienced this. Any ideas? He wants to take it back to builder but I think a 3rd time will not be fun. I want to tear it apart but don't really know what to look for. Any input would be greatly appreciated, Thanks

masracingtd1167 · « **Reply #1 on:** December 22, 2019, 06:22:04 AM »

Double check the filter ! it could be on backwards ! Also some builders plug the cooler by pass at the pump so you must run a cooler of at least loop the line at the cooler fitting ! Valve body loose ? Broken or missing ring on input ? Let us know what you find .

gregm784 · « **Reply #2 on:** December 23, 2019, 12:00:08 PM »

I highly recommend Jim @ ATO in Rancho Cordova. He is a powerglide god.

bikeguy307 · « **Reply #3 on:** December 25, 2019, 06:20:05 AM »

Im headed to the shop today, I will trace the vent circuit through the pump to find all possible cross feeds, sounds like an issue with the pump for sure.

bikeguy307 · « **Reply #4 on:** December 25, 2019, 07:55:00 AM »

Definitely check your converter feed passages input shaft sealing rings and cooler passages in the pump all of these could directly cross feed into the vent circuit causing your issue.

hemidakota · « **Reply #5 on:** January 12, 2020, 09:09:12 PM »

Well trans came apart and pump gasket was again blown out. It is a new older hughes trans. It appears to be a JW case. JW said a paper gasket will not work and they sold my cousin a non blow gasket. Trans is reassembled and will be put back in tomorrow or next day. Will reply with results. And yes gasket was much better than a paper gasket...Thanks to all that answered

bikeguy307 · « **Reply #6 on:** January 16, 2020, 08:34:31 AM »

Hope it takes care of the issue.

gregm784 · « **Reply #7 on:** January 16, 2020, 09:58:33 AM »

How much line pressure? i've seen over 275 and not have a gasket problem. As a matter of fact, i've never seen a gasket problem.

hemidakota · « **Reply #8 on:** January 17, 2020, 10:37:49 AM »

The gasket was blown at pressure port and fluid went around pump o-ring to vent port and blew gasket in is how it was venting. Old gasket was .040" and new gasket was .140". Will start it tonight and double check it. Is a crazy deal.

gregm784 · « **Reply #9 on:** January 17, 2020, 12:25:12 PM »

In doing that you just increased your end play in your trans .100" too. I'm not a trans guy, not sure what that will affect.

hemidakota · « **Reply #10 on:** January 18, 2020, 11:01:09 PM »

I just saw the gasket and helped put it back in and check it. I will post a pic of the gasket. Oh and it did not leak a drop this time...

bikeguy307 · « **Reply #11 on:** January 21, 2020, 09:16:31 AM »

Glad the gasket cured your issue, but adding .100 to the end play is a huge amount, hope you adderssed this. The extra end play should be taken up from the rear inorder to keep the drum up on the pump correctly.

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Author Topic: Power glide pumping fluid from vent (Read 6551 times)

hemidakota

Power glide pumping fluid from vent

masracingtd1167

Re: Power glide pumping fluid from vent

gregm784

Re: Power glide pumping fluid from vent

bikeguy307

Re: Power glide pumping fluid from vent

bikeguy307

Re: Power glide pumping fluid from vent

hemidakota

Re: Power glide pumping fluid from vent

bikeguy307

Re: Power glide pumping fluid from vent

gregm784

Re: Power glide pumping fluid from vent

hemidakota

Re: Power glide pumping fluid from vent

gregm784

Re: Power glide pumping fluid from vent

hemidakota

Re: Power glide pumping fluid from vent

bikeguy307

Re: Power glide pumping fluid from vent

JoydayVox

Re: Power glide pumping fluid from vent