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 Gary Your Own Question

Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 10404
Experience:  15 years GM master tech
19513769
Type Your Chevy Question Here...
Gary is online now
A new question is answered every 9 seconds

why do i have 100 psi oil pressure on my small block chevy

Resolved Question:

why do i have 100 psi oil pressure on my small block chevy
Submitted: 4 years ago.
Category: Chevy
Expert:  Gary replied 4 years ago.
so after you rebuilt it and now its running you have 100PSI at idle?or when reving it up?are you using a good known mechanical oil pressure gage?
Customer: replied 4 years ago.
it was 60 psi at idle incressing to 100 by 3500 rpm with good movement at rpm incress
Expert:  Gary replied 4 years ago.
is the mechanical oil gage good that you know?what oil weight are you running?is it a new oil pump?high volume?high performance engine build you did?
Customer: replied 4 years ago.
put in a secound gauge to make sure of reading and installed a braded line from jegs, new pump (by my builder) ask for high volume. engine is 60 over with desent cam hdy lifters rpm range 1800 to 5200 power range. just added 350 psi oil filter for safety runs good strong 8.22 in 1/8 @ 98 mph
Customer: replied 4 years ago.
put in a secound gauge to make sure of reading and installed a braded line from jegs, new pump (by my builder) ask for high volume. engine is 60 over with desent cam hdy lifters rpm range 1800 to 5200 power range. just added 350 psi oil filter for safety runs good strong 8.22 in 1/8 @ 98 mph 30 weight castro oil 7 qt pan
Expert:  Gary replied 4 years ago.
did you ask the engine builder what the oil PSI should be for the engine he built for you?i would ask what the engine oil PSI should be for what he built you.
Customer: replied 4 years ago.
the builder after 40 years went out of business, unable to contact him, dont even know compression or cam spects, should i worrie about to muh oil pressure/4 bolt stell crank 010 block 202 double hump heads
Expert:  Gary replied 4 years ago.

well im just wondering if thats what the engine builder wanted for oil PSI.my 69 vette runs @ 80 cold and @60 hot.i don't have a high volume pump in it.stock for your engine with a stock pump is 65 PSI at 2000

so with the high volume to be honest i wouldn't worry at all.the engine has a built in pressure relief valve in case the pressure ever got too much.if it peaks at 100 PSI hot i wouldn't worry if you want it down a little more you can play with some synthetics but if it was my engine i would be smiling with 100 PSI

Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 10404
Experience: 15 years GM master tech
Gary and 8 other Chevy Specialists are ready to help you
Expert:  Gary replied 4 years ago.
high performance oil pumps they say delivers 25% more PSI than stock.so if stock was 65 and its at 100 PSI those numbers add up to be the correct PSI
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 10404
Experience: 15 years GM master tech
Gary and 8 other Chevy Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • 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 Los Angeles, CA
  • 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 Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • 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 Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics