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Old 02-27-2012, 06:05 PM   #1
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Diesel Engine Performance Charts

I received this 4.236 performance curve chart from Perkins and thought others would find it interesting.* This would make a great place to post engine performance charts for reference and comparison.

*

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Old 02-27-2012, 09:14 PM   #2
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RE: Diesel Engine Performance Charts

Interesting!!* Very similar performance curve to the 6.354 and they both spin up to 2800 RPM at WOT.* I guess they're basically a 6.354 minus two cylinders (both are about 59 CI per cylinder)* I don't have my engine manual here so I wonder how the stroke compares??* If someone else doesn't scan one in, I will try to bring mine home.

Larry B
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Old 02-28-2012, 05:00 AM   #3
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RE: Diesel Engine Performance Charts

With the prop suggested by the mfg , you need to spin 2200rpm to get 40 hp while the engine is capable of 70 hp at that rpm.

The same 40 hp is available better engine loading/life ,with less fuel flow at 1400 or 1600 rpm .

The reasoning behind the "cruising Prop.
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Old 03-13-2012, 05:02 PM   #4
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RE: Diesel Engine Performance Charts

here is one for my 3208's
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Old 03-18-2012, 02:21 PM   #5
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RE: Diesel Engine Performance Charts

Hi ,

Could you send me the performance chart as an attachment?

I can not seem to get a clear copy off the forum page.

Thanks,

George Creek

gcreek@shaw.ca
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Old 04-15-2012, 09:39 AM   #6
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I have the same engines (3208T - 260 hp) in my Jeff. Trying to figure out a few things - 1) fuel consumption - looks like about 2gph at 1500? Trying to figure out how far I can go on tankage of 420. Also, I have an oil leak at the seal between the trans and engine block. It leaks about 1/2 quart in 80 hours of operation - appreciate all thoughts. I know what it takes to fix the leak(big job lots o $s - but the boat is worth it). seems like a small leak on a 20 quart engine, but want opinions.

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Jeff4688
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Old 04-15-2012, 10:36 AM   #7
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Jeff 4688, you may want to post your seal leaking issue on boatdiesel - peruse the archives there too. I believe what you'll find is a leaking seal can only get worse and once it "wipes" your leak will rise dramatically. The labor cost (high or higher) is associated with gaining access.
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Old 04-16-2012, 07:34 AM   #8
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"seems like a small leak on a 20 quart engine, but want opinions.

FORGETABOUTIT!


A pamper or absorbant pad will catch the oil, so the bilge pump will not leave a "Shene" on the water , and the USCG Swat Team will not helicopter to your deck.

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Old 04-16-2012, 07:47 AM   #9
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Puppy training pads are our weapon of choice in the Perkins leak war.
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Old 04-16-2012, 09:27 AM   #10
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WOD6-TI, 250 HP Hino Chart

Here is the performance chart for my 4588.
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Old 04-18-2012, 07:09 AM   #11
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Be sure to operate with the restrictions of "pleasure boat' or "Light duty commercial" when sizing the drive and prop load.

THe true commercial 24/7/365 rating is a far better graph to use for a passagemaker .
The light duty rating comes with restrictions that must be followed.

IF there is NO 24/7 rating from the mfg , perhaps that is a hint?

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Old 06-03-2012, 08:50 AM   #12
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ISUZU C240

What should I know from this engine curve.

Thanks-
Eeber

ISUZU:Performance Curve
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Old 06-03-2012, 09:25 AM   #13
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Quote:
Originally Posted by knuckelbuster View Post
Here is the performance chart for my 4588.
Hey John; Another 'trawler at heart'
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