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Old 06-18-2020, 01:20 PM   #321
Bus Crazy
 
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,760
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
Sealed a leaking oil pan and rear main seal while in Ottawa then driving home!



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Old 06-18-2020, 01:42 PM   #322
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Location: Eustis FLORIDA
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Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
Good to see an update! Love that green and white bus!
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Old 06-18-2020, 07:45 PM   #323
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Location: N.C.
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Year: 1997
Coachwork: Bluebird
Engine: DT466E
Rated Cap: 34
Quote:
Originally Posted by jazty View Post
Sealed a leaking oil pan and rear main seal while in Ottawa then driving home!
Glad to see you posting again......have a safe trip back to the homestead.
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Old 07-07-2020, 10:20 AM   #324
Bus Crazy
 
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,760
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
Out grabbing some hay.
Looks like the bus could use a wash!


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Old 04-02-2021, 09:16 AM   #325
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Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,760
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
Still using the bus on a regular basis! Being that we are just coming out of winter it's been used for hauling more than for camping lately. This spring I decided to try out one of those injector shim kits sold on eBay by user "truckrental": https://www.ebay.ca/sch/i.html?_from...m+kit&_sacat=0


I bought the $60 kit, which lacks some of the tools that I already had.


On a T444e in a dog nose bus the job was easy-peasy. Takes about a half hour to get both valve covers off, then maybe 10 minutes per injector if you're slow like me and want to double/triple check everything. Also noticed that the connector came off of 2 of the glow plugs, so I squeezed the female contacts with needle nose pliers to tighten the grip and re-connected them.


I haven't driven it enough since to know if there's much of a difference. Before shimming each injector I did check the clearance using the feeler gauge and there were probably 4 that were well outside of spec, so I expect to see some change in engine operation.


Now, I know that the shim kit is a band-aid fix. The proper way is to get injectors rebuilt and that shimming can ruin the injectors beyond re-use. And that's ok with me I'm not planning on dumping money into this engine ever, really. If ever something costly goes wrong with this one I'll hunt around for a full-length dognose with a lower mileage T444e and do a swap. Though they may be getting harder to find, so I should probably scoop one up soon and put it in my "Resource Pile" (aka junk yard) soon!
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Old 04-02-2021, 09:42 AM   #326
Bus Crazy
 
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,760
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
Oh, I also shimmed the fuel return valve spring. These mechanical pumps make a fuel pressure gauge bounce around quite a bit. Before shimming the spring the upper PSI was just under 60psi, probably averaging roughly around 50psi.
I used one of the old injector solenoid screws as a shim, ground down to fit perfectly into the valve seat.
Now the gauge bounces almost as high as 70psi, probably averaging around 60psi or so.


Will it do anything useful? Who knows! But it's an easy thing to undo if I don't like it.


Note that the pressure regulator is different on the T444e fuel bowl than the 7.3l Power Stroke. Not sure if this is simply due to the age of my engine, or if it is for all T444e engines.


Here's a fuel flow diagram:





And here's a picture of the pressure regulator housing (not my photo):




I had to undo the return fuel line then unscrew the pipe fitting. That's all that is required to have access to the spring.
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