Hi Guys, looking for some information regarding how to grease my Mello Yello. I found some info @ GMC Net. just want to make sure that these are all the points. Some mentioned it's a good idea to keep these greased up, since we going on a road trip from LA - Bend, OR. I would like to get this done before.

Any help / input / tricks are welcome

This is what I found in 2 manuals ..

http://www.gmcmhphotos.com/photos/data/7041/medium/X-7428_GMC_Motorhome_Planned_Maintenance_-_Grease_Points.png

http://www.gmcmhphotos.com/photos/data/7041/GMC_P30-Chassis-Manual_-_Grease_Joint.png

Thanks in advance ..

Hi Guys, looking for some information regarding how to grease my Mello Yello. I found some info @ GMC Net. just want to make sure that these are all the points. Some mentioned it's a good idea to keep these greased up, since we going on a road trip from LA - Bend, OR. I would like to get this done before.

Any help / input / tricks are welcome

This is what I found in 2 manuals .. (Only use the TZE)

http://www.gmcmhphotos.com/photos/data/7041/medium/X-7428_GMC_Motorhome_Planned_Maintenance_-_Grease_Points.png

Thanks in advance ..

Wally,

X-7428?

Or is that a typo for X-7425?

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak

73melloyello wrote on Fri, 07 July 2017 22:02

Hi Guys, looking for some information regarding how to grease my Mello Yello. I found some info @ GMC Net. just want to make sure that these are all the points. Some mentioned it's a good idea to keep these greased up, since we going on a road trip from LA - Bend, OR. I would like to get this done before.

Any help / input / tricks are welcome

This is what I found in 2 manuals .. (Only use the TZE)

http://www.gmcmhphotos.com/photos/data/7041/medium/X-7428_GMC_Motorhome_Planned_Maintenance_-_Grease_Points.png

Thanks in advance ..

Marc,

My coach has a grease fitting where the relay lever pivots on the relay bar. All together there are 14 in the front and the 4 at the bogies.

Note 1 - Get a good grease gun. I own 6 of them and two are just for the coach - pretty much. One is for marine things and so has a special grease for those. I struggled for a long time until I settled on a Lincoln 1133 or 1134 grease gun. These are a pistol grip gun that leaves one hand free to hold the coupler on the grease fitting and has a flexible whip so you can get it all the places it needs to get to do the job right. The other coach grease gun is also a Lincoln, but decades old and has a straight pipe and I find that easier for greasing the bogies. I always carry that one in the coach wrapped in rags in a plastic bag because it does bleed and that is messy. It does not bleed much anymore, but I have a 23 with no storage that I can afford to get greasy.

Note 2 - These days the all others are all loaded with Valvoline SynPower. This is a synthetic grease with molybdenum sulfide. It is an extreme pressure lubricant and I have proven its value in my own machinery. It is not cheap, but it is still cheaper than replacing parts. (No Dutch jokes here, I'm married to one.)

Note 3 - I grease everything every 3000 miles as was recommended in original owner's manual and was typical of vehicles of the period. One thing I try to over grease is the bogie pins. Older coaches have smaller pins that are less well lubricated, so I hit them about every 1000 miles - even if we are on the road. It may end up longer some times, like the 1500 miles to Shawnee, I just hit them before we departed for home.

Note 4 - Do Not buy a power grease gun. (This is a lesson learned from another owner.) A powered grease gun will not let you feel the grease going in and if it is not (there can be several reasons), you may not know until there is a critical failure.

Last Note: All ways do the complete walk around. Pull the dipstick. (Transmissions don't consume lubricant, just leak, but should be checked regularly.) Look inside everything and check the latches and locks. Be sure everything that is there is secure and where it belongs. Then, start the engine an listen for new noises. Coaches may not have a soul, but they will talk to you and it is very much worth your while to listen. It may be a complaint, a warning or just saying thank you for taking care of me.

There is an old saying in my world... Watermen and their boats, they take good care of each other.

Matt

Depending on your PO and if they did some replacement of parts you may have up front 2 more fittings than when they left the factory in Pontiac. That would be the base of the idler arm and where the relay connects to the center link. In the back you could have 8 fittings instead of the factory 4 if someone added boggie greasers which are supposed get the grease in the pin closer to where it is needed. Be sure your engine is running in Park when you check the trans level or it will appear too high when it is not and if on Full line will be Under filled. Running and warm it should be at full mark.