904 trans help needed

gmonde · 08-29-2010, 06:15 PM

just built and installed 904 trans,,,,,heres the deal ,trans works great fast engagement from forward to reverse but have a serious leak from the bell housing (and of coarse you cant see any thing) change out the front pump seal from the new one that was installed new,checked pump alignment good ,when you load the converter it gets worse,,checked converter (brand new coan 5000 stall)welds look to be good but could be coming from there,,any one have to send a converter back because you cant locate a leak?any chance of the 904 early lock up case could be the issue not having a port exposed putting hight presure in the converter ??? i used the non lock up pump (two check ball pump) any input is helpful,,sending the converter back to have them presure test it

turbo action valvebody reverse manual
coan converter
aluminum front drum
turbo action rebuild kit

gmonde

08-29-2010, 06:15 PM	#1
gmonde Senior Member Join Date: Nov 2007 Posts: 615 Likes: 56 Liked 165 Times in 59 Posts	904 trans help needed just built and installed 904 trans,,,,,heres the deal ,trans works great fast engagement from forward to reverse but have a serious leak from the bell housing (and of coarse you cant see any thing) change out the front pump seal from the new one that was installed new,checked pump alignment good ,when you load the converter it gets worse,,checked converter (brand new coan 5000 stall)welds look to be good but could be coming from there,,any one have to send a converter back because you cant locate a leak?any chance of the 904 early lock up case could be the issue not having a port exposed putting hight presure in the converter ??? i used the non lock up pump (two check ball pump) any input is helpful,,sending the converter back to have them presure test it turbo action valvebody reverse manual coan converter aluminum front drum turbo action rebuild kit gmonde