| Author |
Message |
Edgar W. Lonsbary (Pattyscharm)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 13, 2004 - 12:16 am: | |
I have a 1982 MCI 9 (6V92 TA, with a Allison 754 CRD auto trans). The engine has approx. 200k miles on it. It is a 1983 Angola bus conversion/motorhome. Question is...should I change the oil in the blower gearbox? I can see the oil level in the site glass so it is not low. As far as I know, the oil has been in there since it was new. How do I get the oil out and what oil do I put back in? Can I use a synthetic? One more thing does oil wear out? |
BrianMCI
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 13, 2004 - 12:30 pm: | |
I suppose you could call it wearing out... The long molecule chains in the oil do get broken down with use, and over time the lubricating qualities of the oil degrages, but for most oils it's the contaminants in the oil that deternmine when it's time to change...Having said that, if you suspect the oil has been in the blower box for 24 years and you don't want to send a sample to a lab for testing, by all means change it out. Luke at US Coach ought to be able to suggest what oil to use if you don't have DaBook and probably be able to suggest a synthetic equivilent.
Brian |
Edgar W. Lonsbary (Pattyscharm)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 13, 2004 - 9:11 pm: | |
Thanks Brian…will contact Luke. Any ideas on how to get the oil out? |
BrianMCI
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, December 14, 2004 - 12:33 am: | |
Well, there certainly ought to be a drain for it...
But you could rig up a pump to suck it out into a pan...
And I suppose you could rig up a hose to a pipe nipple and screw it into the drain.
Maybe even use a pump on that...
Brian |
Earl-8-Ky
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, December 14, 2004 - 2:02 pm: | |
I used a suction bulb with a small hose on it to get the oil out. I believe the owners manual calls for the same oil as you use in the engine. I used 90 wt. gear oil. One word of caution do not over fill. Will make a mess on the back of your bus. Fill it to about half way on the sight glass. Works for me. |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, December 14, 2004 - 9:59 pm: | |
I'm with Earl, don't overfill....
As well as making the back of the bus a mess, it gets sucked into the fans, filling the little blades on the squirrel cage full of oily dirt, and then they don't move as much air, leading to a loss of cooling capacity.
happy coaching!
buswarrior |
JOhn that newguy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, December 15, 2004 - 12:04 am: | |
Forget the sightglass. Stick your finger in the filler hole and when
the oil covers the gear, it's enough. |
Earl-8-Ky
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, December 16, 2004 - 9:46 pm: | |
Wonder why they put the sight glass there. |
John that newguy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, December 16, 2004 - 10:24 pm: | |
Two bus garages said to go by the amount of oil covering the gear,
and to forget the glass. I guess that glass isn't always that accurate
and overfilling blows seals.
~~~~whatever |
Tony H. (Bluegrass)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, December 17, 2004 - 8:48 am: | |
They must have put the sight Glass on there for everyone to clean and look at. |