350 b reverser leak

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Clickittyclack
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350 b reverser leak

Post by Clickittyclack » Mon Oct 01, 2018 11:22 pm

Sudden loss of fluid while running, stopped moving in any direction. Whats odd is after refilling it runs out very fast but no sign of leaking externally, Thanks

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Stan Disbrow
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Re: 350 b reverser leak

Post by Stan Disbrow » Tue Oct 02, 2018 12:16 pm

Hi,

Well, it must be running into the transmission....

Stan
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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Lavoy
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Re: 350 b reverser leak

Post by Lavoy » Tue Oct 02, 2018 2:42 pm

Check cooling system if it has a radiator cooler for the reverser.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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gregjo1948
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Re: 350 b reverser leak

Post by gregjo1948 » Wed Oct 03, 2018 4:18 am

Stan Disbrow wrote:
Tue Oct 02, 2018 12:16 pm
Hi,

Well, it must be running into the transmission....

Stan
That's what I thought at first but then I thought wouldn't it have to have 2 seals fail to get into the trans.? He said it happened quickly which leads me to believe that the fluid was being pumped out and Lavoy might have the right idea.
JD 350B diesel w/rops & 6way blade, Case 580B Loader/backhoe, Farmall 504 highcrop, International 404 utility, International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller

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Stan Disbrow
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Re: 350 b reverser leak

Post by Stan Disbrow » Wed Oct 03, 2018 7:11 am

Hi,

Yes, he also has a good place to look. I thought of that, but would expect oil out of the reverser and into the cooling jacket to push fluid out of the radiator overflow. The pressure inside the reverser is much greater than the radiator cap could hold back. And, then you'd have that mix all over the ground.

With nothing coming out onto the ground, that pretty much leaves the trans, which can probably take a couple reverser loads of oil before it spits out somewhere. But, maybe your coolant was low and the oil had someplace to fit.

Stan
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

Clickittyclack
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Re: 350 b reverser leak

Post by Clickittyclack » Wed Oct 03, 2018 7:29 am

I check all fluids often, before and after running, trans levell has not changed, sat over winter and lost antifreeze but i think that is a cold water leak, have put 15 gallons of oil in this, it pumps out immediately on startup

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Stan Disbrow
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Re: 350 b reverser leak

Post by Stan Disbrow » Wed Oct 03, 2018 7:58 am

Hi,

Only other place I can think of for it to go is into the bell housing. There is a weep hole on the bottom IIRC, but often times it gets plugged up.

Stan
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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gregjo1948
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Re: 350 b reverser leak

Post by gregjo1948 » Thu Oct 04, 2018 3:17 am

Stan Disbrow wrote:
Wed Oct 03, 2018 7:58 am
Hi,

Only other place I can think of for it to go is into the bell housing. There is a weep hole on the bottom IIRC, but often times it gets plugged up.

Stan
With no gaskets to seal between the housings, I'd think it would at least be dripping. Maybe better check engine oil to see if it's pushing into the oil pan. That's quite a stretch.
JD 350B diesel w/rops & 6way blade, Case 580B Loader/backhoe, Farmall 504 highcrop, International 404 utility, International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller

dtoots1
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Re: 350 b reverser leak

Post by dtoots1 » Thu Oct 04, 2018 8:29 am

well clickityclack,
where are you located?....
if you have pumped 15 gallons thru the reverser, how much are you adding at a time? surely aint 15 one time. and you say tranny level not changed? what about any other fluid levels? steering? finals? rad? are hydraulics separate on 350? its gotta go somewhere..
leastways you know pump is working since pumps out when you start it.

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Stan Disbrow
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Re: 350 b reverser leak

Post by Stan Disbrow » Thu Oct 04, 2018 8:57 am

Hi,

Hydraulics are separate on a 350. Tank on the RH of the seat, pump out in front of the engine. Reverser has its own pump on the input shaft. Reverser housing is the tank. The oil goes to a cooling line in the radiator, so that might have been it. Or, past the seals into the bell housing or back into the trans. Trans uses the same oil, so it wouldn't be obvious but the level hasn't risen.

This is a B, so it has dry steering clutches. If it were a C or a D, reverser oil is used to make up the steering clutch packs, so it could be in one of those areas if a clutch seal failed. But, being a B, reverser oil isn't sent to the steering clutches. The B uses pressure plates to make up the steering clutches.

He hasn't said if he has power steering assist or not. Those cylinders are run off reverser oil pressure. But, they leak into the trans, IIRC. And, again, no tell-tale rising of the trans oil level.

Gotta be going somewhere. And, I don't know how much oil loss equals loss of reverser operation.

Stan
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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