How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask spankyjr1 Your Own Question

spankyjr1
spankyjr1, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2516
Experience:  Journeyman TechnicianWorked on small to large engines for 30 yearsGas,LP,Diesel
65057319
Type Your Small Engine Question Here...
spankyjr1 is online now

Perkins 6354 engine has a vibration like it is out of balance

Customer Question

Perkins 6354 engine has a vibration like it is out of balance but as you may no there is no balance. Weights in the engine ???
Submitted: 1 year ago.
Category: Small Engine
Expert:  spankyjr1 replied 1 year ago.
Hi, my name is ***** ***** you for asking your question, I will try and help you out.What is engine installed in?This type of issue can be caused by a cylinder imbalance from a injection pump or nozzle, try running engine at whatever RPM you feel vibration the most,crack loose one injector line at a time 1/4 turn,you want to hear a definite miss and change in RPM.You want to first do this at idle when most misses happen, then do some more at different rpm ranges to find miss.Another way is to use a laser type temp gun ( click here) and check each exhaust port temp again at all rpm ranges,compare readings they should all be within 15 degrees of each other,,you may just need nozzles and set valves.Depending on application possible clutch or torque converter problem.Please let me know if you'd like to discuss this further...just click the reply button or use the reply box below to let me know. If this has been helpful, please take a moment to use the stars at the top of the page to rate my personal service to you.Questions or problems let me know I'm happy to assist.Thank You,spanky
Customer: replied 1 year ago.
After loosening each. Injector pipe one at a time the mis fire was the same on all six
Expert:  spankyjr1 replied 1 year ago.
Sorry for delay in responding, the site had me locked out of question.
Check fuel pressure to injection pump should be around 15 psi idle and 30 high idle.
If pressure is good bypass fuel line from inlet of transfer pump directly into clean 5 gallon bucket of fuel,,see if vibration goes away you may be getting air in fuel causing symptoms.
Let me know
Customer: replied 1 year ago.
How do you check p s I on injector pipe
Expert:  spankyjr1 replied 1 year ago.
You should be able to tap into fuel filter head on pressure side if you have two filters, otherwise you would need a tee at fitting going into pump.
Customer: replied 12 months ago.
I do not understand what you use to check the pressure I am sorry I have been slow replying but been busy TB. Testing
Expert:  spankyjr1 replied 12 months ago.
You have a fuel line going from fuel transfer pump to injection pump you need to tap into line or fitting so you can hook up a pressure gage.
I have had to braze a bushing in fuel line or fitting to install fuel pressure gage,then once pressure is checked and confirmed install a pipe plug to seal.
if you have banjo fittings any fuel injection pump shop can get you the fittings you need.
Then if you do have good fuel pressure you need a injection pump.
If not enough fuel pressure you need a fuel transfer pump.
If this has been helpful, please take a moment to use the stars at the top of the page to rate my personal service to you.
Thank You,
spanky

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
< Previous | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • Jon K.

    Jon K.

    Small engine diagnostic expert

    Satisfied Customers:

    2823
    Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines
< Last | Next >
  • http://ww2.justanswer.com/uploads/jonrk/2010-1-5_22551_jon.jpg Jon K.'s Avatar

    Jon K.

    Small engine diagnostic expert

    Satisfied Customers:

    2823
    Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines
  • http://ww2.justanswer.com/uploads/KO/koboma/2012-6-6_20917_DSCF1022.64x64.JPG Curtis B.'s Avatar

    Curtis B.

    Technician

    Satisfied Customers:

    161
    Service manager and technician for all brands of engines with 40 + years of experience.
  • http://ww2.justanswer.com/uploads/HA/HankF/2013-8-27_12514_JAProfilepic.64x64.JPG Hank F.'s Avatar

    Hank F.

    Technician

    Satisfied Customers:

    5359
    Certified on Onan and Generac generators.
  • http://ww2.justanswer.com/uploads/RA/ranwell1/2013-5-23_17421_2fixed3.5x5.64x64.jpg ranwell1's Avatar

    ranwell1

    Small Engine Technician

    Satisfied Customers:

    5039
    Owner of Large Small engine repair business. Over 39 years. Certified both 2-cycle and 4-cycle engines
  • http://ww2.justanswer.com/uploads/SP/spankyjr1/2014-1-16_16395_Leha002.64x64.jpg spankyjr1's Avatar

    spankyjr1

    Small Engine Technician

    Satisfied Customers:

    19
    Journeyman TechnicianWorked on small to large engines for 30 yearsGas,LP,Diesel
  • http://ww2.justanswer.com/uploads/PL/Plumberpro/2014-6-23_6520_image.64x64.jpg Plumberpro's Avatar

    Plumberpro

    Plumber

    Satisfied Customers:

    40
    Fully qualified plumbing , heating and gas engineer 20 years experience
 
 
 

Related Small Engine Questions