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hanaiapa 05-01-2017 10:54 PM

First Bus! 1972 Crown w/ Cummins 220
 
1 Attachment(s)
Hi all!
I just bought my first bus, a 1972 Crown with a Cummins 220. She's a beauty! Planning to drive it from LA to SF in a few weeks. The engine looks solid and I had a chance to take it for a spin but I would love some advice on how to best prepare for the trip. Anything in particular I should check aside from regular levels? Any overheating risk I should be aware of, especially in the hills outside of LA on the I-5? Any RPM range I should keep it in?

Thanks!

Njsurf73 05-01-2017 10:56 PM

Quote:

Originally Posted by hanaiapa (Post 200864)
Hi all!
I just bought my first bus, a 1972 Crown with a Cummins 220. She's a beauty! Planning to drive it from LA to SF in a few weeks. The engine looks solid and I had a chance to take it for a spin but I would love some advice on how to best prepare for the trip. Anything in particular I should check aside from regular levels?

Thanks!

Tires!


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Stu & Filo. T 05-01-2017 11:08 PM

Nice, Why SF ?

hanaiapa 05-01-2017 11:12 PM

Coz I Live there ;-)

Stu & Filo. T 05-01-2017 11:13 PM

Quote:

Originally Posted by hanaiapa (Post 200869)
Coz I Live there ;-)

In SF or the surrounding area ? I'm in Vacaville

hanaiapa 05-01-2017 11:20 PM

Live in SF but the bus will be in Sierra Foothills.

Kubla 05-01-2017 11:23 PM

Cummins 220 redline is 2000 rpm, like all the small cam Cummins engines, operating rpm is 1400 to 2000 rpm in the higher gears, don't lugg the engine as you get somthing called driveline resonance, a harmonic condition that does bad things to the transmission. Ignore if it is an automatic. Check your tire age

hanaiapa 05-01-2017 11:30 PM

Thanks! It helps. It's a manual. As for the tires, they're in good shape with a good amount of thread left on them. the spare looks good too.

PNW_Steve 05-01-2017 11:36 PM

Quote:

Originally Posted by hanaiapa (Post 200875)
Thanks! It helps. It's a manual. As for the tires, they're in good shape with a good amount of thread left on them. the spare looks good too.

Congrats on the beautiful Crown!!

I am hoping that the tires have good tread. Last time I had tires that showed good thread it was a bad thing...:facepalm:

hanaiapa 05-02-2017 12:25 AM

Quote:

Originally Posted by PNW_Steve (Post 200878)
Last time I had tires that showed good thread it was a bad thing...:facepalm:

What happened?

Save

M1031A1 05-02-2017 04:40 AM

Quote:

Originally Posted by hanaiapa (Post 200881)
What happened?


Save

Dry rot happened!:eek:

dan-fox 05-02-2017 08:32 AM

tires are date coded
 
http://www.skoolie.net/forums/f33/ti...hem-16496.html

or Google "tire date code" and become an instant expert. I can't quickly find whether commercial trucks are required to change out tires at a certain age; I'm sure others will chime in. There are LOTS of buses out there that have acceptable or better tread gut the tires are suspicious simply due to age. Sun and air pollution are the main culprits but even if it's been kept in a bottle old tires can be bad mojo.

At least check the codes, know the age, and plan your budget accordingly.

Iceni John 05-02-2017 09:48 AM

I suggest you leave LA very early in the morning, long before the morning "rush hour", then you'll be over the Grapevine before it gets hot. Climb at a 3/4 throttle and about 1800 RPM to prevent lugging the engine. The northbound descent is several continuous miles of 6%, so use the Jake if it has one. If no Jake, descend no faster than you climbed. Respect the Grapevine - it's not high by Rocky Mountains standards, but many trucks have got into trouble on it.

Or if I-5 bores you, take 101 instead - it's much nicer scenery, good Danish pancakes in Solvang, but it may be slow though San Jose.

Have fun!

John

hanaiapa 05-02-2017 03:27 PM

Quote:

Originally Posted by Iceni John (Post 200926)
I suggest you leave LA very early in the morning, long before the morning "rush hour", then you'll be over the Grapevine before it gets hot. Climb at a 3/4 throttle and about 1800 RPM to prevent lugging the engine. The northbound descent is several continuous miles of 6%, so use the Jake if it has one. If no Jake, descend no faster than you climbed. Respect the Grapevine - it's not high by Rocky Mountains standards, but many trucks have got into trouble on it.

Or if I-5 bores you, take 101 instead - it's much nicer scenery, good Danish pancakes in Solvang, but it may be slow though San Jose.

Have fun!

John

Thanks a lot. Great advice guys. I ll check the tires and be extra careful in the hills.


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