1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site
    Quick Links: Timing belt replacement /timing belt broke/cam sprocket question Feedback on a high mileage 1st gen Abnormal manual transmission heat? Is there anyway to convert both electric windows to auto? Are aftermarket headlamp assemblies daytime running lights? *

Compression test and spark plug analysis

Discussion in '1st Gen. Tacomas (1995-2004)' started by rybern, Nov 16, 2017.

  1. Nov 16, 2017 at 5:53 PM
    #1
    rybern

    #1
    rybern [OP] Well-Known Member

    Joined:
    Apr 3, 2017
    Member:
    #215281
    Messages:
    2,410
    Gender:
    Male
    First Name:
    Ryan
    N Alabama
    Vehicle:
    2023 TRD OR & 2000 SR5
    5100's & 3AAL, 265/70r17 Toyo AT3
    I installed new plugs and did a compression test the other day on my 2000 2.7. Warm engine with all plugs removed gave 185, 180, 185 and 200 psi at 1100 ft. Motor had 296291 miles.

    I gapped new Denso plugs at .030". Old Densos have a .040-.042" gap and have 48k miles on them. What's your opinion on the spark plugs being a bit rounded? I do a little bit of pinging around 2200-2500 RPM when I give a little bit of throttle. Is this a sign that the pinging is coming from certain cylinders? #4 has a little oil on it for some reason. Engine runs great, no CEL's and I get ~21 mpg with 31's and 4.30 gears.

     
    rybern, Nov 16, 2017
    #1

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$28.27
FK Bearings WSSX16T Spherical Bearing with Teflon, 1" (1-3/8 Wide), 1 Pack
$56.99
AutoLine Pro EVAP High Volume Smoke Machine Leak Tester – Shop Series - Automotive Smoke Tester for Vacuum Leak Detection - Car Smoke Machine with Ceramic Smoke Coil and Best Ranked Smoke Fluid
$67.98
Ford Genuine Ford Fluid XT-M5-QS Full Synthetic Manual Transmission Fluid - 1 Quart , black
$32.58
tesa 51036 High-Performance PET Cloth Automotive Wire Harness Tape, Black, 19mm x 25m, 1 Roll
$6.73
Toyota Genuine Fluid 00295-00103 Formed-in-Place Oil Pan Gasket - 3 oz. Tube
$20.44
EVIL ENERGY 5/32 1/4 5/16 3/8 Silicone Vacuum Tubing Hose Line Kit 5FT 4PCS 130PSI Max Pressure (4mm 6mm 8mm 10mm)
$21.99
Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
$26.05
Lisle 50210 Gasket Separator
$24.31
Custom Shop 4" x 1/4" Textured Bed Liner Roller Covers (Pack of 3) for Roll-On Custom Coat Truck Bedliner Coating Application - Create Texture Effect with Paint and Non-Skid Protective Coatings
$15.99
Denso (3194) K16TR11 Spark Plugs, Pack of 4
$17.25
ARP 100-7718 Wheel Stud Kit for Toyota
$39.52
MOOG K90261 Front Right Lower Suspension Ball Joint for Toyota Tacoma
$34.00
MOOG K90260 Front Left Lower Suspension Ball Joint for Toyota Tacoma
$33.99
82141-04M40
$30.83
InoKraft Undercoating Spray Gun with Suction Feed Cup, 360° & Straight Spray Hoses, for Truck Bed Liner Coating, Rubberized Undercoat, Rust Proofing
$49.99
AISIN WPT-044 New Engine Water Pump with Gasket - Compatible with Select Toyota 4Runner, T100, Tacoma
$57.29
Set of 2 Toyota-Scion Engine Coolant / Antifreeze Genuine 00272SLLC2
$54.50
Lisle 36050 Valve Keeper Remover and Installer Kit
$57.23
Denso 234-4162 Oxygen Sensor with 4-Wire 10.5” Harness for Non-California, Non-4WD Lexus/Toyota
$50.75
Lifede Battery Terminals,Car Battery Cable Terminal Clamps Connectors,Negative and Positive,Copper,Plastic Cover,Good Contact,Corrosion Resistance,1 Pair, Applicated in Car,Van and More.
$7.99
NGK Spark Plug Stock # 3967
$6.99
Useful Magnets | R-134A Temperature Pressure Magnetic Chart | Flexible Magnetic Sheet for R-134A System Pressure | Waterproof Magnet Poster for Quick Reference in Garage or Workshop | 5.5" x 4.25"
$9.99
Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible with America's Top Car Repair App
$79.98
Solary Automotive Smoke Machine Leak Detector - 12V DC EVAP Vacuum Diagnostic Tester for Pipe System
$77.98
Denso First Time Fit Alternator - 210-0461
$165.88
TAC Side Steps Fit 1995-2004 Toyota Tacoma Access Cab (4WD Or Prerunner 2/4WD) 3" Black Side Bars Nerf Bars Running Boards Rock Panel Off Road Exterior Accessories (2 Pieces Running Boards)
$169.99
Bilstein 33-230337 Monotube Shock Absorber, 46mm
$112.00
Hellwig 550 EZ-550 Helper Spring Kit
$104.64
Denso 234-9002 Air Fuel Ratio Sensor
$134.99
Denso 234-9026 Air Fuel Sensor
$130.88
Toyota Genuine 2020-2021 Tacoma TRD PRO 16" Matte Black Wheel PT946-35200-02 w/Center Cap
$277.44
Alpine 8" Amplified Subwoofer (PWE-S8) 120W Compact Powered 8" Car Subwoofer for Under or Behind The Seat
$329.90
WINTOOLS 27 Pcs Universal Press & Pull Sleeve Kit Bush Bearing Removal Insertion Tool Set
$96.00
Pioneer DMH-WC6600NEX Digital Multimedia Receiver with Wireless Apple CarPlay and Android Auto, 9" Floating Capacitive Touchscreen, Modular Double-DIN, Built-in Bluetooth, WiFi and Amazon Alexa
$929.99
M MINGLE Pressure Washer Undercarriage Cleaner, Under Car Wash, 4000 PSI (13")
$22.99
NOCO Boost Plus GB40 1000A UltraSafe Car Battery Jump Starter, 12V Jump Starter Battery Pack, Battery Booster, Jump Box, Portable Charger and Jumper Cables for 6.0L Gasoline and 3.0L Diesel Engines
$99.95
Exterior Front Driver & Passenger Door Handle Set, Upgraded Metal, Compatible with 1995-2004 Toyota Tacoma - Textured Black - 69220-35020, 69210-35020, 79345, 91318, 79344, 91319, TO1311117, TO131011
$64.97
Energy Suspension - 9.11104 8 OZ TUB OF FORMULA 5 PRELUBE
$17.16
Denso 234-9003 Air Fuel Ratio Sensor
$169.99
Lisle 24680 Spill-Free Funnel, Standard Adapters, 11 x 7 x 7"es
$33.45
ALEOED M12x1.25 mm Self-Locking Nylon Insert Hex Lock Nuts, Pack of 6
$12.99
To Top