| Author | Message | ||
| frank-4104 Unregistered guest Posted From: 64.136.26.225 Rating: |
what trans fluid should i be useing in my spicer transmittion. also what kind of lube in the wheels.we don't put alot of miles on her last year 7k like to change the oil each year live in florida. | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 150 Registered: 11-2005 Posted From: 66.175.159.99 Rating: N/A |
frank, Do you have a Maintenance Manual? If not, be sure to get one because this trans is differentand some other lubes are different than modern heavy duty vehicles. It has an oil pump, as do most heavy duty Spicers of the era used by GMC, and does NOT use 90w like most others.The trans takes 50W mineral oil. I use Shell Aero 100 (Really 50W) in mine. It is a non-detergent aircraft engine break in oil. I know this sounds strange but I also have a couple of antique GMC big trucks that use the same thing. I think maybe some guys use the same 40W as in the engine but maybe they don't know about the aircraft oil. I don't know what you mean by wheel lube, do you mean in the wheel bearings? That is the only lube the wheels use. They use regular wheel bearing grease. They do NOT use the lube oil in the differential unless the axle seals leak! | ||
| frank-4104 Unregistered guest Posted From: 64.136.26.225 Rating: N/A |
gusc,thanks for the info. I metin the wheel bearings. i was told to use 90wt in the spicer transmission thats why i asked want to be sure.it was done 13k ago and don't want to mess any thing up.it dose not nead any lube but at some point it might.I would like to ask another question,my fuel filters don,t have a shut off in the line could i just spinn the filters off fill them with fuel wipe a little oil on the gasket and spinn them back on as to not creat a air lock?tjanks four help .......frank 4104. | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 156 Registered: 11-2005 Posted From: 63.97.117.27 Rating: N/A |
Frank, 90W is too heavy. I don't think the trans oil pump can handle that weight unless you are in a very hot climate. I would think it would be very hard to shift even in moderately cool weather. Most 90W is about like tar when it is cold or old. Yes. That's what I do with the fuel filters and have had no problems with prime so far. I still have the original primary filter which requires cleaning but my secondary is a spin-on. The only time I ever lost prime was from a leak in the check valve in the line into the primary filter and that took about three weeks. I cleaned the check valve, reprimed from a clean fuel container with a 12v fuel pump and that solved that problem. | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 57 Registered: 7-2006 Posted From: 63.232.216.194 Rating: N/A |
40 wt. motor oil in the trans. | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 159 Registered: 11-2005 Posted From: 63.97.117.43 Rating: N/A |
Bob, Motor oil is not correct for these transmissions. Mineral oil is. These old Spicer transmissions used by GMC are unlike any other I have ever seen. My '50s five ton GMC trucks use the same thing. | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 59 Registered: 7-2006 Posted From: 63.232.216.194 Rating: N/A |
that is what my book says. maybe a spicer in an Eagle is different | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 162 Registered: 11-2005 Posted From: 63.97.117.39 Rating: N/A |
Bob, The 4104 book says "Aviation Grade 50W oil" for the trans, same goes for my '50s GMC trucks. Since then there must have been a change because I know of no later vehicles that use this light weight. Everything else later seems to use 90W. Mine had 30W engine oil in it when I got it but I changed it. Didn't seem to hurt it any with the 30W. I had it serviced last spring in CA and it got topped off with 90W. I just added some 30W non detergent to balance off the heavy stuff. No problems after 5000+ miles. |
