| Author |
Message |
Johnny (63.159.197.122)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 18, 2002 - 9:34 pm: | |
I was doing an oil change on my skoolie (1984 Ford B-700, 370/5+2), & noticed something: the guy that did the maintenence was a complete idiot. It holds about 8 quarts of oil, & had a filter from a passcar! It was a dinky little "teacup" filter--about 4" deep! Gee, I wonder why the bearings are worn?
Yes, I'm replacing the engine, but not immediately, & it has to be driveable while I convert it. |
Chuck Harris - PD4104 (207.172.11.147)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 18, 2002 - 9:53 pm: | |
Uhmmm? What, if not worn bearing material, do you expect the filter to contain?
A small filter on a big engine, on the face of it seems wrong; but, on a good engine, there is not all that much trash for the filter to,... well, filter.
Also, a 370 cuin truck engine doesn't pump significantly more oil thru the filter than a 370 cuin passenger car engine. The reason the truck engine has such a big sump is to provide more oil for cooling.
-Chuck |
Johnny (63.159.197.122)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 18, 2002 - 10:11 pm: | |
I understand this, but: Heavy-duty engines call for large filters. They do so for a reason....... |
Johnny (63.159.197.122)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, May 18, 2002 - 10:12 pm: | |
Actually, this isn't why I know the bearings are worn--the *BANG, BANG, BANG* on startup & oil pressure of 6psi at hot idle are giveaways. |
joe shelton (Littlewind) (67.241.230.59)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, May 20, 2002 - 10:51 am: | |
This sure is a good place to learn about bus stuff! There are many areas of this subject (bus) that I am a "complete idiot" also but I come here with an open mind so that I might be changed. An open mind and the belief that I can change are the two things needed to move from ignorance to enlightened. So that I may keep my open mind, please refer to me as ignorant rather than "complete idiot" or "stupid". Thanks, Joe Littlewind |
Johnny (63.159.193.19)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, May 20, 2002 - 5:07 pm: | |
I wasn't referring to you, I was referring to the moron who used the wrong filter on my skoolie, probably contributing to ruining the bearings.
I'm new to this, too. |
George Webber (209.242.148.130)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 10:48 am: | |
small filter? what is stupid about that? with a small load and frequent change, small need.
short runs, fresh engine, frequent changes... no need to squander all that oil or pay for a filter larger than needed.
dusty conditions, hard running, long change intervals; then go with the big ones.
extensive big fleet experience proves the above to be wise economy. |
Johnny (63.159.177.178)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 12:38 pm: | |
In this case, it was more like FALSE economy--small load on an engine in a 10-ton bus simply does not happen. That would be like putting a filter for a 5th Avenue on my friend's 318-powerred 1977 Dodge motorhome (4.88 gears, 10,500lbs) & expecting the engine to last.
Filters are cheap. Bearings are expensive. |
Scott P. (152.163.207.181)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 1:01 pm: | |
Saw the filters open and see what you've got inside. It will probably scare you to death, but it will also show you if your filter was near capacity. |
BB is for venting also (199.250.20.136)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 2:57 pm: | |
Wow! I'm not going to let Joe "Lottawind" put one of those small filters on my bus! |
Johnny (63.159.176.122)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 5:54 pm: | |
The teacup is gone--I don't WANT to know what was inside.
Fortunately, the bus is getting a fresh 460. |
degojoe (198.81.17.179)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 6:37 pm: | |
You sure can tell a "skoolie" guy from a diesel pusher converter can't you?? |
George Webber (209.242.148.130)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 6:47 pm: | |
you meen the throw away attitude?
or the "how do I..." and then "I have a better way"?
or "I dont wanna know"?
or just calling everyone a dumb shit?
Not ALL Skollies are like that! Most are real good joes! |
Johnny (63.159.176.122)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 21, 2002 - 6:56 pm: | |
Whaaaaaaaaaat? I don't like throwing away usable things, but:
The engine holds <90psi in all 8 cylinders.
Leak-down from 20-65% in all cylinders.
As I said above, 6psi hot of oil pressure with straight 30-weight.
It smokes like a bonfire after about 5 minutes.
Absolutely no power, & blows a HUGE blue-gray cloud at full throttle.
Loud bearing knock on startup & cold idle.
It costs the same (actually, a little LESS) to rebuild a 460 compared to a 370. The 460 has some more (much-needed) torque compared to a 370, & I have a truck 460 in my garage, so......
I've dealt with enough engines to know that when it comes to filtering, bigger truly IS better. That's why my daily driver (1979 Coupe de Ville) gets a GM MDT oil filter--filters are cheap, engines are expensive. |
George Webber (209.242.148.130)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 22, 2002 - 2:36 pm: | |
Johnny- by small load I ment that there is little dust or dirt and the engine is not throwing lots of metal. big rig does not = heavy load, that is what the gear box and cooling system is for.
try opening a filter, you will probably find that there is very little in it. The only reasons to use a big filter is if you are running in a very dirty climate and anticipate it will fillup and cause the oil to bypass, Or you need that extra quart of oil for cooling (get a cooler!), Or the engine is throwing non magnettic metal (alu, copper, brass) that your drain plug magnet won't pickup.
My long haul rigs have mucho filters, we never know what conditions will be and when a change will be possible. Short haul rigs are very predictable (school buses too) and minimal filters are all that is needed because we change and monitor them all the time, and if the conditions are dirty we change then more often, daily sometimes!
I have retired (just from commercial driving) with more than 40 years over the road with an average of 160,000 miles a year. I now own over 30 rigs: propane, gas, diesel.
On my rigs All filters are opened, all are checked. How else would I know if work is needed? Oil pressure is a product of back pressure, what you need is flow... no way to measure that with your oil pressure guage.
Ease up on those words like "crazy" and "stupid", that is kid stuff.
If you don't know why something was done, then ask, and dissagree if you wish. But please be polite, that way you will be heard.
I am sorry you got my goat, my grandson is pulling my chain with his darn teenage mouth... I should give him a fat lip, not give harsh words to you.
George. |
Peter (Sdibaja) (216.188.79.63)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 22, 2002 - 3:16 pm: | |
Thanks George:
We should all lighten up a bit, this is suposed to be fun!
Tell me more... Did you drive for Von Arx Drayage in 1968 out of Windsor Ca? If so we ran the grapevine together a few times!
Peter
PS: Please get you email up here, I have other questions than just old times.
PPS: do you do fat lips on order? my youngest son is twice my size and ..... ;--] |
Johnny (63.159.184.153)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 23, 2002 - 1:30 am: | |
This engine was neglected--no doubt about it. I pulled a valve cover--the heads are loaded with sludge, & the oil I drained looked like tar. The trans oil was low, looked like tar, was almost as thick, & stunk beyond belief. This bus's maintenence was, as I suspected, poor & irregular.
Also, the drain plug is NOT magnetic, & some dingbat managed to cross-thread the thing! (Insert cuss words here--I certainly did.) Looks like I'm hitting the junkyards for an oil pan.....
I will always use tha largest filter I can for all my vehicles. Filters are cheap. Engines are not. |
Jocelyne Costello
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 10, 2005 - 4:17 pm: | |
Von Arx Drayage: Gotta' love em! I remember Larry...what a great guy! |