Ford 1510 Hydraulic Pump Leak Help

K5lwq · Jun 10, 2019

There should be bolt for each arrow. I only see one in the picture. Hopefully this helps.

mike48130 · Jun 10, 2019

So I think you need to look up a 1710 on Messicks, because I didn't see the diverter under the 1510 schematics.

According to the picture, #7 and #6 are O-rings. #3 is an adapter that goes onto the pump, and the #2 slips inside of that. It looks like it is a slip joint design for tolerance stack up i'm sure. The #15 bolt only shows QT 1 which is odd. My guess your #6 o-ring is leaking. But while in there, replace them all.

#6 O-RING,2.4mm Thk x 9.8mm ID
#7 O-RING,2.4mm Thk x 19.8mm ID, 90 Duro

shepeod · Jun 10, 2019

mike48130 said:
View attachment 608528 View attachment 608528

So I think you need to look up a 1710 on Messicks, because I didn't see the diverter under the 1510 schematics.

According to the picture, #7 and #6 are O-rings. #3 is an adapter that goes onto the pump, and the #2 slips inside of that. It looks like it is a slip joint design for tolerance stack up i'm sure. The #15 bolt only shows QT 1 which is odd. My guess your #6 o-ring is leaking. But while in there, replace them all.

#6 O-RING,2.4mm Thk x 9.8mm ID
#7 O-RING,2.4mm Thk x 19.8mm ID, 90 Duro

Thanks for the info. I found this link as well that basically says the same thing:

https://www.tractorbynet.com/forums/new-holland-owning-operating/126895-what-how-do-i-fix-5.html

shepeod · Jun 12, 2019

K5lwq said:
There should be bolt for each arrow. I only see one in the picture. Hopefully this helps.

View attachment 608495

I double, and tripple, checked. There is no bolt on that side. There are the 2 you can see in the photo and one on the backside for a total of 3. However there is no hole on the front side for a fourth bolt.

mike48130 · Jun 12, 2019

Just about all these 1000 series Ford's have a 3 bolt flange on the pumps. My 1600 and 1700 were the same way.

K5lwq · Jun 12, 2019

Most of the flanges like that I have seen have three bolts. Looking at the shape of the pump and when I zoomed in, it appears as if a bolt is missing. I am glad you figured it out and will get it going again soon. :thumbsup: