Jack stands
 

Jack stands

Started by petarm1, September 02, 2018, 02:38:33 PM

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petarm1

Good day. I have a 89 102c3 mci. I want to put jack stands under to hold the body up in the rear so i can do some repairs. Until i find a service manual. Where is the best place to put my jack stands
Thanks from petar
1989 mci 102c3  6v92   7 speed manual / 1999 mci 102dl3 60 series b500r
Prince rupert bc

chessie4905

Personally, I would use timbers, as you are going to need some pretty stout Jack stands, which would be costly.
GMC h8h 649#028 (4905)
Pennsylvania-central

TomC

If the bus runs, make ramps out of 2x12's to drive up onto.
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

luvrbus

I use jack stands (good ones) don't buy the cheap stands with the racket buy the pin type like the Sunex and remember the stands are rated in pairs not individually good stands you are fine,stands under the engine cradle close to the bulk head are ok   
Life is short drink the good wine first

buswarrior

Are we just getting the bus uphigher to get underneath, or are we taking the wheels off?

Building wood ramps like Tom suggests is good for tires on.

Wheels off,depends what you are doing, whether you block under body or block under axle?

A collection of good quality 2x lumber and some 4x to crib with comes in handy around the campsite, as well as coach maintenance purposes.

Larger pieces at home, like good railway ties, speedthe process, and can just stay there.

Crib the wood piles,no teetering pilesready to drop the coach on you!!!

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

chessie4905

I'll bet you have a need for jackstands more than he'll ever need them. They are fine on concrete.
GMC h8h 649#028 (4905)
Pennsylvania-central

petarm1

Thanks. My stands are of the screw type good for 5 tons each. And i will locate them to the cradle by bulk head. My trailer hitch assembly doesnt give me a good flat area to put the stands. I may weld flat area in place to give better support. My goal is to locate a good spot to install hydralic jacks. Now that being said, are hydraulic jacks better when long term camping or is it better to just drive it up on blocks. And is there a way to stop the rear from dumping air when i do get it level
1989 mci 102c3  6v92   7 speed manual / 1999 mci 102dl3 60 series b500r
Prince rupert bc

chessie4905

GMC h8h 649#028 (4905)
Pennsylvania-central

lostagain

So jack stands can give you cancer in CA. Are they safe in other states and provinces?

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

muldoonman

Sounds like living in california could make you sick. ;D

chessie4905

Just barely in Arizona, but they'll turn your hair white.
GMC h8h 649#028 (4905)
Pennsylvania-central

Dave5Cs

Quote from: petarm1 on September 03, 2018, 07:20:57 AM
Thanks. My stands are of the screw type good for 5 tons each. And i will locate them to the cradle by bulk head. My trailer hitch assembly doesnt give me a good flat area to put the stands. I may weld flat area in place to give better support. My goal is to locate a good spot to install hydralic jacks. Now that being said, are hydraulic jacks better when long term camping or is it better to just drive it up on blocks. And is there a way to stop the rear from dumping air when i do get it level

I wouldn't use anything under 12 ton and do prefer 20 ton air over manual jacks and then wood cribs under Jacking points only unless taking off the wheels then its under axles. I drive up on ramps first and then start cribbing, jack some more and crib some more. I never block under body because it will bend. Do not jack under body on an MCI anyway it will bend. again only under the jacking points.

Just remember that a tire leak, blowout or bad airbag or even a leaky air valve may allow the bus to make a very bad Impression on you fast and last forever.
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

eagle19952

is there a way to stop the rear from dumping air when i do get it level...

no. you must block the suspension, even if it didn't leak.
having said that, fix the leaks first.
Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 N, DD, Allison on 24.5's 12kw Kubota.

chessie4905

You can disconnect the leveling valve link where it is attached to axle. Secure it from moving then so it doesn't bleed out the air. On GM, it says you can unhook link, inflate air bags enough to place a 10 inch piece of pipe that has sufficient inside diameter to sit over bump stop, about 4 inches more or less in diameter. Be sure your air bags are in good condition first. Then lower coach by lever to allow body to rest on pipe spacers.
GMC h8h 649#028 (4905)
Pennsylvania-central

buswarrior

Re: blocking suspension at bump stops.

Big Transit used a piece of 4x4, painted yellow with an eye and a short rope to pull it out/carry it.

Slip it in, suspension can't go any lower once contact is made

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift