Jeep Engines - Oljeep

~268 MOPAR PERFORMANCE PARTSConvolute Tubing PackagesHere’s the best way to protect loose wires, cables andvacuum hoses. Convolute tubing is specially designedarmor for protection against heat and corrosive substances.Made of black polyurethane that’s ribbed for curving intight areas and slit for easy installation over existingwiring harnesses. Keeps wires out of the way and makes avery neat underhood appearance. Each package includes25 feet of material which can be cut to length. Select fromfour popular diameters.P4286576* 1/4“ convolute tubing.P42865777/16“ convolute tubing.P4286578” 5/8” convolute tubing.P4286579 1” convolute tubing.* Package includes 24 retaining clips.ENGINE SPECIFICATIONSBefore you run any engine test (track or shop), you shouldknow and have written down the following information:Camshaft Centerline . .....................Valve Spring Installed Height:Valve-to-Piston Clearance:___Intake _______ Exhaust ________Total Spark Advance ......................TDC on Damper Checked __________________Optional items to this list are cylinder head cc’s and deckheight. This information should be based on actualmeasurements and written down as the actual number,not “stock.”At the TrackWhen taking the vehicle to the race track. the “trick” is forthe driver-mechanic to get the most out of the package thathe is testing. You learn nothing if something is wrong withone or several of the parts.Once the vehicle is at the track and unloaded, warm up theengine. Check all the fluids. Check engine for leaks. Besure all the gauges work. If it is a new engine, break it ineasy-don’t hurry. Fill the gas tank and check plug wires.Be sure that the vehicle goes straight - tire pressures equal,etc. Always use helmets and seatbelts during test.BASIC TUNE-UP AND TROUBLESHOOTINGBasic Tuning1.2.3.4.5.6.7.Test battery specific gravity; add water if necessary.Clean and tighten battery connections.Test cranking amperage draw. See Starting MotorCranking Amperage Draw, ‘Electrical System’ sectionof the service manual.Tighten intake and exhaust manifold bolts in propersequence to specification.Perform cylinder compression test:a.b.C.d.e.f.g.Warm up engine, if possible, to normal operatingtemperature. If not possible, perform cold.Remove all spark plugs from engine. As sparkplugs are being removed, check electrodes forabnormal firing indicators - fouled, hot, oil, etc.Record cylinder number of problem spark plug forfuture reference.Disconnect coil wire from distributor and secure togood ground to prevent a spark from starting a fire.If equipped with a carburetor, be sure choke andthrottle blades are fully open during thecompression check.Insert compression gauge adapter into the No. 1spark plug hole in cylinder head. Crank engineuntil maximum pressure is reached on gauge.Record this pressure as No. 1 cylinder pressure.Repeat step e for all remaining cylinders.Compression should not vary much from cylinderto cylinder. Refer to engine specifications.The recommended compression pressures are tobe used only as a guide when diagnosing engineproblems. An engine should not be disassembledto determine the cause of low compression unlesssome malfunction is present.Clean or replace spark plugs as necessary and adjustgap as specified. Tighten to specifications.Test resistance of spark plug cables. Refer to ‘ElectricalSystem’ section of your service manual for procedure.Inspect the primary ignition wire and vacuum advanceoperation (if equipped). Test coil output voltage, primaryand secondary resistance. Replace parts as necessary.Refer to ‘Ignition System’ section of your service manualfor procedure and make necessary adjustment...