Outbehindthebarn Posted April 1, 2015 Share Posted April 1, 2015 Bought a Superliner 1 that is 900 miles away. Runs and drives well, but leaks power steering fluid at the box seal. Leak's pretty bad. I want to drive it home, not the least bit worried about manual steering, but I don't want to do further damage by running it dry. Guy I bought it off of offered to fix it before I took off, but I want to source parts and any info for him I can beforehand.So, two questions. Will I do any damage by just driving it dry?Second, Can someone get me a parts list for that box? My local Mack shop can't find anything on it anymore. (Thank you Volvo) Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/ Share on other sites More sharing options...
jackb61sx Posted April 1, 2015 Share Posted April 1, 2015 Does your truck have one box or two and if it does which box is leaking, I have a rebuild seal kit from Mack that I never used on my truck, it was from the passenger side, I had to replace both my steering box's, the driver side was just worn out so I replaced it with one from Mack and the other side was leaking, we opened it up and the outer seal just had to much of a wear grove under it that new seals would of leaked sooner or later so we replaced it aswell. So if you need a kit I have one.Jack Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284934 Share on other sites More sharing options...
b61mack Posted April 1, 2015 Share Posted April 1, 2015 If you plan on driving it home I would buy some Lucas power steering stop leak or Lucas heavy duty oil stabilizer and drive it home. with Lucas in there it would be better than just plain 15w-40 oil, may not leak that bad. rebuild it when you get it home just a thought. Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284935 Share on other sites More sharing options...
Outbehindthebarn Posted April 1, 2015 Author Share Posted April 1, 2015 Does your truck have one box or two and if it does which box is leaking, I have a rebuild seal kit from Mack that I never used on my truck, it was from the passenger side, I had to replace both my steering box's, the driver side was just worn out so I replaced it with one from Mack and the other side was leaking, we opened it up and the outer seal just had to much of a wear grove under it that new seals would of leaked sooner or later so we replaced it aswell. So if you need a kit I have one.JackIt has one box located on the steering axle. Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284938 Share on other sites More sharing options...
Outbehindthebarn Posted April 1, 2015 Author Share Posted April 1, 2015 If you plan on driving it home I would buy some Lucas power steering stop leak or Lucas heavy duty oil stabilizer and drive it home. with Lucas in there it would be better than just plain 15w-40 oil, may not leak that bad. rebuild it when you get it home just a thought.Does that stuff work pretty well? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284939 Share on other sites More sharing options...
bmking16 Posted April 1, 2015 Share Posted April 1, 2015 RealDiehl try this number at the Mack dealer - 6990-HFB640001 that was the seal kit for my 87 and I got it from the local Mack dealer Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284940 Share on other sites More sharing options...
Outbehindthebarn Posted April 1, 2015 Author Share Posted April 1, 2015 RealDiehl try this number at the Mack dealer - 6990-HFB640001 that was the seal kit for my 87 and I got it from the local Mack dealerThat has the steering box located on the axle? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284942 Share on other sites More sharing options...
Outbehindthebarn Posted April 1, 2015 Author Share Posted April 1, 2015 Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284970 Share on other sites More sharing options...
Superdog Posted April 1, 2015 Share Posted April 1, 2015 A 87 would have different steering box Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284974 Share on other sites More sharing options...
Outbehindthebarn Posted April 1, 2015 Author Share Posted April 1, 2015 A 87 would have different steering boxWould you just run her home like leaking like that? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284975 Share on other sites More sharing options...
Popular Post Superdog Posted April 1, 2015 Popular Post Share Posted April 1, 2015 Would you just run her home like leaking like that?I'd do like Ron said,filler full of Lucas and put it in the wind,if it gets to steering hard,stop and dump in some more. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284976 Share on other sites More sharing options...
Outbehindthebarn Posted April 2, 2015 Author Share Posted April 2, 2015 I'd do like Ron said,filler full of Lucas and put it in the wind,if it gets to steering hard,stop and dump in some more.If it run dry for very long, would it ruin the pump? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284994 Share on other sites More sharing options...
Superdog Posted April 2, 2015 Share Posted April 2, 2015 If it run dry for very long, would it ruin the pump?yep,but you can tell when it's getting low,no reason to run it dry if you pay attention 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-284995 Share on other sites More sharing options...
Outbehindthebarn Posted April 2, 2015 Author Share Posted April 2, 2015 yep,but you can tell when it's getting low,no reason to run it dry if you pay attentionDo you know for certain if parts for these old boxes are still around? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285002 Share on other sites More sharing options...
Superdog Posted April 2, 2015 Share Posted April 2, 2015 for 100% certain,no,but I'd bet if Mack or PAI didn't have it,you could find seals at least through a aftermarket supplier. Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285005 Share on other sites More sharing options...
gearhead204 Posted April 2, 2015 Share Posted April 2, 2015 i cant remember the thread but i have posted a steering box rebuilder in portland oregon"pro steering" they seem to have damn near anything and if they dont have an exchange they will rebuild yours. as far as i know mack didnt build boxes, it could be a ross,trw,or saganaw, we used to have a truck with that set up but i dont remember the brand of box. Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285021 Share on other sites More sharing options...
fifth wheel Posted April 2, 2015 Share Posted April 2, 2015 i cant remember the thread but i have posted a steering box rebuilder in portland oregon"pro steering" they seem to have damn near anything and if they dont have an exchange they will rebuild yours. as far as i know mack didnt build boxes, it could be a ross,trw,or saganaw, we used to have a truck with that set up but i dont remember the brand of box.They used Shepard and Gemmer, not much left in the Mack system. There are other sources for parts.FW Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285026 Share on other sites More sharing options...
b61mack Posted April 2, 2015 Share Posted April 2, 2015 Power Steering Specialists Westerville, Ohio 1 800 235-3076 or www.pss1.com 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285028 Share on other sites More sharing options...
smorse54 Posted April 2, 2015 Share Posted April 2, 2015 The box in the picture is a Sheppard. The input seal is just the same as a 392. Before you get too involved in this one see if you can find a Ross. They are much better in this application. The pitman arms stay tight and the pitman shaft bushings last longer. Back in the day we ran a small fleet of these and found this out. I found a nice one for mine at Global in NH acouple years back. Phil was there at the time and it was only $250. Good luck, Steve Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285030 Share on other sites More sharing options...
bmking16 Posted April 2, 2015 Share Posted April 2, 2015 A 87 would have different steering boxYep after seeing the picture that's a totally different box than on mine Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285032 Share on other sites More sharing options...
MACKS Posted April 2, 2015 Share Posted April 2, 2015 If your gonna drive it you will have to keep fluid in it,its almost impossible to steer a truck that has power steering that is disabled because of a bad pump or no fluid going to it.How bad does it leak,can you bring enough extra fluid with you to get home? Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285036 Share on other sites More sharing options...
jackb61sx Posted April 2, 2015 Share Posted April 2, 2015 Well if anyone has a Superliner with two box's, I have a Mack seal kit #6990HFB520000 they are welcome too, this fits passenger side box.Jack Quote Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285055 Share on other sites More sharing options...
Outbehindthebarn Posted April 2, 2015 Author Share Posted April 2, 2015 The box in the picture is a Sheppard. The input seal is just the same as a 392. Before you get too involved in this one see if you can find a Ross. They are much better in this application. The pitman arms stay tight and the pitman shaft bushings last longer. Back in the day we ran a small fleet of these and found this out. I found a nice one for mine at Global in NH acouple years back. Phil was there at the time and it was only $250. Good luck, SteveWhat is the Ross model number? Or should I just say a "Ross" pump for a Superliner 1? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285058 Share on other sites More sharing options...
Outbehindthebarn Posted April 2, 2015 Author Share Posted April 2, 2015 If your gonna drive it you will have to keep fluid in it,its almost impossible to steer a truck that has power steering that is disabled because of a bad pump or no fluid going to it.How bad does it leak,can you bring enough extra fluid with you to get home?Yeah, I was told to just keeper' topped off with Lucas stop leak.... But I actually don't know how bad it runs out... He claims its worse when you turn the wheel Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285059 Share on other sites More sharing options...
ws721 Posted April 2, 2015 Share Posted April 2, 2015 I have driven home with a blown hose. It didn't hurt the pump. Drove it @ 150 miles. Would I suggest you drive with no oil? NO. However, like they have said, keep oil in it and you will be just fine Quote Remember if it's got a hood it's no good! Link to comment https://www.bigmacktrucks.com/topic/39522-superliner-1-steering-box-leak/#findComment-285061 Share on other sites More sharing options...
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