Getting The Most Out Of Your Alternatively Fueled Diesel Vehicle Proper Maintenance and Optimization - PowerPoint PPT Presentation

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Getting The Most Out Of Your Alternatively Fueled Diesel Vehicle Proper Maintenance and Optimization

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Use protective equipment doing any work. Patience, no matter what. General Diesel Maintenance. Compression testing for baseline (cheap testers can be had at HFT - OK) ... – PowerPoint PPT presentation

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Title: Getting The Most Out Of Your Alternatively Fueled Diesel Vehicle Proper Maintenance and Optimization


1
Getting The Most Out Of Your Alternatively Fueled
Diesel Vehicle - Proper Maintenance and
Optimization for Performance, Emissions, and
Efficiency
  • Tom Judd
  • Colorado Biodiesel
  • http//www.coloradobiodiesel.com

2
Biodiesel Related Mechanical Issues
  • This discussion is in no way to be considered
    complete, or comprehensive. If you have questions
    PLEASE ASK!
  • If you have information that isn't shared in this
    class and feel is pertinent, please SHARE IT!

3
General Diesel Maintenance
  • Filters
  • Fuel lines
  • Diesel purge/Diesel Kleen
  • Valve adjustment
  • Injector service (test/balance)?

4
General Diesel Maintenance
  • Valve adjustment is a common procedure
  • Anyone can learn to do this on their own car
  • Be prepared to get greasy!

5
General Diesel Maintenance
  • Use protective equipment doing any work
  • Patience, no matter what

6
General Diesel Maintenance
  • Compression testing for baseline (cheap testers
    can be had at HFT - OK)?

7
General Diesel Maintenance
  • Checking and adjusting injector pump timing
    (timing chain elongation over time changes timing
    relative to cam timing.)?

8
Diesel Emissions
  • Smoking
  • Turbo (fuel/air ratio imbalance)?
  • ALDA (fuel ratio adjustment)?
  • Bad fuel
  • Water?
  • Algae?
  • Glycerol?
  • Soaps?

9
Diesel Emissions
  • Smoking (cont'd)?
  • Improper warm-up (ambient relative to engine
    temps)?
  • Bad glow plug(s)?
  • Testing

10
Diesel Emissions
  • Air filtration
  • Blocked flow
  • Plugged filter
  • Off-brand filter
  • Air intake restrictions (bird/mouse)?

11
Biodiesel Related Maintenance
  • Fuel Filters
  • Flexible fuel lines (NR, Buna, etc.)?
  • Filler cap gaskets
  • Filler neck seals
  • Pump fittings with seals

12
General Diesel Maintenance
  • Don't forget the chassis and other related
    components!
  • Wheel bearings
  • Differential
  • Transmission
  • Synth lubes
  • Filters
  • Adjustments

13
Common Biodiesel Related Repairs
  • Filter plugging for the first few tanks will be a
    common problem due to the aggressive cleaning
    action of Biodiesel

14
Common Biodiesel Related Repairs
  • Older fuel hoses swell or decompose (replacement
    with most new factory hose and any Viton hose
    will solve this issue)?

15
Common Biodiesel Related Repairs
  • What we all know
  • NR, Buna-N, Nitrile seals rot/decompose in
    presence of Biodiesel.

16
Biodiesel Related Maintenance
  • Injector cleaning
  • http//dieselgiant.com/injectorcleaning.htm

17
Biodiesel and Rubber
  • Natural Rubber no longer used
  • Buna-N, Nitrile, etc. do swell over time
  • Most vehicles mfg AFTER 1992 are OK for
    Biodiesel use as-is!

18
(No Transcript)
19
Biodiesel and Fuel Lines
  • Gates 4219G is certified for use with Biodiesel

20
Biodiesel and fuel lines
21
Common Biodiesel Issues
22
Common Biodiesel Issues
23
Common Biodiesel Issues
  • Up to 10 less power
  • Higher gel temp
  • Decomposition of NR, Buna and Nitrile
  • Injector Coking/Nozzle plugging
  • NOX can be increased
  • Availability

24
Coking Symptoms
  • Smoking
  • Hard starting
  • Lack of power
  • Rough engine

Ford F250 Powerstroke, 30K miles on B100. Mild
coking issues noted
25
Biodiesel Related Mods
  • Injector pop testing and balancing (experimenting
    with nozzles and pop pressures)?

26
Biodiesel Performance Pros
  • Cetane 5-10 points higher than petro diesel
  • Smoother/quiet running
  • Cleaner fuel system
  • Cleaner combustion chamber

27
Biodiesel Performance Pros
  • Less Soot/emissions (contd)
  • …In the 1996 study performed by the Southwest
    Research Institute, the effect of oxygen content
    (by percent oxygen) on the production of
    particulates, smoke and soot was studied using
    the same Cummins diesel test engine cited above.
    The study established, for example, that a B-20
    blend (approximately 2 oxygen for RME-20)
    reduces particulate soot by approximately 30
    (from 0.06 for diesel no. 2 to 0.04 G/HP-Hr for
    rapeseed methyl ester at 20.) Technical
    Handbook for Marine Biodiesel In Recreational
    Boats - Randall von Wedel, Ph.D

28
Biodiesel Performance Pros
  • Less Soot/emissions (contd)
  • B100 has shown about a 50 reduction in
    particulate matter (PM or soot) emissions.
    Biodiesel FAQ, Union of Concerned Scientists
  • Oil life extended with reductions in suspended
    soot

29
Biodiesel Performance Pros
  • Substantial increase in fuel lubricity means
    longer pump life
  • …Even low blends of biodiesel are highly
    effective at enhancing the lubricity of diesel
    fuel. The typical blend used for lubricity
    enhancement is 2 biodiesel mixed with 98 diesel
    (B2). NBB - Low Blends of Biodiesel A Guide
    to Different Blend Levels

30
Biodiesel Performance Pros
This is a photo of the Quantity Adjuster housing
on the BioPod after 42,000 miles - 3.5 years on
B100. Bob Armantrout
31
Biodiesel Performance Pros
Here's a photo of my friend Shaun's 2000 Golf
with over 62,000 B100 miles - it is immaculate!
Bob Armantrout
32
Somebody Likes Us!
33
Conclusion
  • Dont worry, if you screw up a mechanical thing,
    it CAN be fixed!
  • We are all at the front of a many-generations
    quest for the health of our living environment.
  • Fuel costs will only go up.

34
Colorado Biodiesel PO box 21292 Boulder, CO
80308 www.coloradobiodiesel.com 303-440-1050
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