Ford 600 hydraulic oil in trans

stan frank · Feb 29, 2012

Why is the hdyraulic oil leaking in to the trans oil?

john in la · Feb 29, 2012

Most likely not leaking but rather being pumped in.
There are 2 tubes that run threw the bottom of the trans from the hyd section to the pump by the motor flywheel. One is fluid to the pump (suction) and the other is fluid back to the hyd section (pressure).
From years of condisation (water) in the trans or hyd oil these tubes develop pin holes that leak oil into the trans under pressure.
The hyd section will go dry and the trans will overfill with this condition.
If it is really leaking in (seeking a even level between both sections) it could be the seal between the trans and hyd section.

old · Feb 29, 2012

Can be caused by a couple things. Bad seals between the trans/hyd system which is no big deal unless you use the heavy oil in the trans or it can also be the bad problem of a hyd tube having a hole in it and that will cost you a few $$ to fix

Ford 600 hydraulic oil in trans

stan frank

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john in la

Well-known Member

old

Well-known Member

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