| Author |
Message |
Bill Butler (63.15.111.178)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 02, 2001 - 11:19 am: | |
If someone has some information on lubricating the control cable for a Allison V730 transmission I would very much appreciate it. This cable is on a 4905A GMC. It has shifted fine for the last year and now is very hard to work. Can I pull the inside cable out of the housing and lub it? If so do I pull it to the rear or into the cab? Is it hard to re-install? Thanks for any tips. |
JHD4905WI (64.12.104.174)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 03, 2001 - 8:59 am: | |
Bill, This one mechanics solution. I have not tried it yet, but probably will in the near future as I also have a 4905 with a V730.
You will need the following
(1) 12' length of 1/2" hose. (Hose length may vary)
(2) hose clamps to fit hose.
(1) 1 - 1/8" pipe coupling.
(1) 1/8" grease zert.
Grease gun, screwdriver, various wrenches, and some patience.
Now screw zert into coupling, slip coupling into one end of the hose and clamp hose tight to coupling. Next, disconnect shifting cable and cable housing from transmission. Slip the hose over the exposed cable and cable housing and secure with the other hose clamp.
Place grease gun on zert and pump in grease. The grease will fill hose and follow through the cable housing to shifting tower.
Have another person watch for grease at the shifting tower or you might have quite a mess. Also would advise using a grease that doesn't stiffen in cold weather.
This should also work for the throttle cable unless you have an air throttle. Caution -- Be very careful disconnecting throttle cable as there are some small parts that are hard to aquire if lost.
Good luck. John |
Usher (162.40.193.55)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 03, 2001 - 9:37 am: | |
I wouldn't use grease on the shifter linkage. It will stiffen when cold and get old and stiff anyway in a few years. I would much prefer to use a snythetic oil. You can blow the oil in the same way,except by placing a air quick disconnect and using air to force the oil up the cable. I would disconnect the cable from the shifter and place the end in a bucket or something to keep the oil from blowing everywhere. And remember to remove the rubber sleeve that keep debris out of the cable before hooking up the hose. We use to oil cables on motorcycles this way and they worked great for long periods of time, plus you only get a coating of oil in the cable instead of a cable full of gunky,messy, thick grease. |
Steve Sanford (208.186.186.198)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 03, 2001 - 11:36 am: | |
I have tried greasing old cables, with oil and grease, its a temperary ease of movement, you will prob still have to replace the cable at some point in time. STeve |
Scott Whitney (63.151.68.130)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 03, 2001 - 12:51 pm: | |
Somewhere on one of these BBs a few weeks back there was a post from an aircraft guy. He used special lubricant made for aircraft cables and shop air to force it down. I think he said something about getting a whole quart of the stuff in the cable. Might see if you can search the archives for the post. I think the gist of it was that aircraft frequently use long surface control cables. They cannot afford to get stiff or gunked up for obvious reasons. Might cost more for the lube, but might be worth it. I have no personal experience with this, just regurgitating what I read.
Someday, my throttle cable will need such service. . .
Good luck,
Scott |
Bill Butler (4.4.113.140)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 03, 2001 - 2:31 pm: | |
Hey,thanks guys for your help.I appreciate your all taking the time to explain in detail how to accomplish this. I do think I will use synthetic oil tho.I have not been able to locate the cable as a replacement part in the GMC parts book. |