Engine overhaul
Upcoming SlideShare
Loading in...5
×
 

Engine overhaul

on

  • 383 views

 

Statistics

Views

Total Views
383
Views on SlideShare
383
Embed Views
0

Actions

Likes
0
Downloads
10
Comments
0

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Engine overhaul Engine overhaul Presentation Transcript

  • Engine OverhaulEngine Overhaul Chevy 350Chevy 350
  • Remove EngineRemove Engine Place engine securely on an engine stand
  • Remove AccessoriesRemove Accessories Remember to take photos- bag and label the parts and fasteners
  • Remove Intake and Valve trainRemove Intake and Valve train ComponentsComponents Label the pushrods – this is to identify if you find a bent one later to look at the other parts for that cylinder.
  • Remover Cylinder HeadsRemover Cylinder Heads Remove the head bolts in reverse sequence--- Check for damage especially between cylinders The Engine’s Identification Number is Found Here
  • Remove LiftersRemove Lifters Rotate the engine – it will pop the lifters up for easy of removal
  • Ridge Ream Each CylinderRidge Ream Each Cylinder A ridge develops over time and must be removed to allow the piston to be removed
  • Remove all RidgesRemove all Ridges Two wrenches opposite of each other give you good control
  • Remove Oil Pan and InspectRemove Oil Pan and Inspect This is a four-bolt main – Pay attention to the oil pickup screen, look for debris 1 2 3 4 Mark the main and rod caps for reinstallation Use number and Letter sets
  • Remove Gaskets and Scrape AwayRemove Gaskets and Scrape Away CrudCrud Wiggle out the oil dipstick tube, it will be damaged if you don’t.
  • Remove Balancer and Front CoverRemove Balancer and Front Cover Loosen the Main Bolts In Reverse Sequence Remove the Harmonic balancer with the proper tool or you will damage it. Remove Timing Gears and Chain Toss Them
  • Remove Pistons and Main CapsRemove Pistons and Main Caps Tap the pistons out with a plastic hammer– tap the mains from front to back to loosen
  • Remove Crank and CamshaftRemove Crank and Camshaft Knock out the Freeze plugs Clean out water Jacket holes
  • Remove Camshaft BearingsRemove Camshaft Bearings You need a specific tool for this– clean out all bolt holes with a tap
  • Clean the Internal AreaClean the Internal Area Especially the oil galleries
  • Clean Out Lifter AreaClean Out Lifter Area A long rod tipper with a rag soaked in cleaner works well for areas you can’t get your hand
  • Inspect Cylinder headsInspect Cylinder heads Check everywhere, the heads are very prone to cracks and damage.
  • Cracks- You Don’t Want To See ThisCracks- You Don’t Want To See This
  • Clean the HeadsClean the Heads A power brush works well and inspect head for cracks again, cover and plug the ports and valves if you don’t rebuild the heads. (why wouldn’t you?)
  • Spring Tool and Valve ToolSpring Tool and Valve Tool You will need to measure spring Tension and height
  • Cylinder Head DisassemblyCylinder Head Disassembly Use a “C” valve tool to remove valves—Keep everything in order
  • Inspect Valve, Springs, and RotatorInspect Valve, Springs, and Rotator
  • Inspect For CracksInspect For Cracks Check Here
  • Valve GrindingValve Grinding This resurfaces the valve angle
  • Cut & Check Valve SeatCut & Check Valve Seat Use Prussian Blue to check the contact between valve and seat
  • Valve AnglesValve Angles Seat 45 degrees 15 degrees 60 degrees
  • Clean and Inspect PistonsClean and Inspect Pistons At times you can reuse pistons, replacing them will improve the rebuild
  • Clean and Inspect the Entire EngineClean and Inspect the Entire Engine
  • Preparation for PaintingPreparation for Painting
  • Acquire a Rebuild KitAcquire a Rebuild Kit This kit is a Mater rebuild kit complete with the crank rods and pistons. You can get a rebuild kits without these items or smaller camshaft and valve train kits
  • Paint HeadsPaint Heads Cover valve area and block ports
  • Paint BlockPaint Block Cover internal parts, you don’t need to paint where the oil will be, use high heat paint
  • Measure, Measure, MeasureMeasure, Measure, Measure Measuring throughout the rebuild process will insure you buy the necessary items
  • Install CamshaftInstall Camshaft Take care with the cam and it’s bearings when installing. Over lube this as you install.
  • Install LiftersInstall Lifters Lube the lifters heavily
  • Measure Ring GapMeasure Ring Gap This gap needs to be precise, file the gap to specs
  • Install and Bolt Main CapsInstall and Bolt Main Caps You will want to confirm the inside diameter is correct and round Make sure you line up the oils hole for the bearings
  • Bolt and Torque CrankBolt and Torque Crank Use specifications and sequence for this and anything else in engine!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Over lube Everything Use Assembly Grease Install Freeze Plugs
  • Fit the RingFit the Ring Protect the rod Use wood in the vise
  • Lube the Rod BearingsLube the Rod Bearings Use assembly grease Oil the rings Use engine oil
  • Prep Pistons for InstallationPrep Pistons for Installation Align the ring gaps---in thirds
  • Install PistonsInstall Pistons Use a plastic hammer handle Use a ring Compressing tool Install pistons one at a time and torque to specs
  • Installing Timing ChainInstalling Timing Chain Mark the aligning Points with white out And align them for proper gear timing
  • Clean and Prep the Cylinder HeadsClean and Prep the Cylinder Heads Some people send the heads out to be reworked, or buy replacement heads
  • Bolt and Torque the HeadsBolt and Torque the Heads Use Specs and Sequence Make sure you keep the gaskets aligned
  • Install Rockers and PushrodsInstall Rockers and Pushrods Use plenty of lube, this is the last area that gets oil on startup
  • Adjust Rockers ArmsAdjust Rockers Arms Adjust the slack out, turn the rod in your fingers and turn adjuster until the rod stops spinning Don’t over do this.
  • Prepare the Front CoverPrepare the Front Cover Check the timing marks again just to make sure. Use a little extra sealer in the corners.
  • Install Front CoverInstall Front Cover Lube seal as you place the cover over the crank Use specs
  • Install Harmonic BalancerInstall Harmonic Balancer Use specs
  • Prep For Intake ManifoldPrep For Intake Manifold Use a good sealer here to help the intake seal. Take care to keep gasket aligned
  • Place the GasketsPlace the Gaskets Use a good sealer here to help the intake seal. Take care to keep gasket aligned Use a little extra sealer in the corners
  • Install intake and DistributorInstall intake and Distributor You can wait for the distributor until later, if so covet the openings in the intake!!!!
  • Install Oil Pump and FilterInstall Oil Pump and Filter Install the oil dipstick You need To adjust The screen. How?
  • Wires Now or LaterWires Now or Later
  • Wire Looms are ImportantWire Looms are Important You may wait until exhaust is installed
  • Install Oil PanInstall Oil Pan Use a good sealant here Don’t turn engine Over if carb is installed Install a fuel pump also
  • Install AccessoriesInstall Accessories Valve covers Exhaust manifolds Water pump Carburetor
  • Engine StorageEngine Storage  Bag and oil the engine if you plan to store theBag and oil the engine if you plan to store the engine.engine.  Store engine in a place that is dry.Store engine in a place that is dry.  You can place it on a wood skid to recover youYou can place it on a wood skid to recover you stand.stand.
  • Engine Break InEngine Break In  Lots of conflicting info out there.Lots of conflicting info out there.  Mr. B way.Mr. B way.  Spin the oil pump shaft with drill and get oil pressureSpin the oil pump shaft with drill and get oil pressure in engine-replace distributorin engine-replace distributor  Start engine, spot time the distributor and check forStart engine, spot time the distributor and check for leaks and make adjustmentsleaks and make adjustments  If no problems, run engine at idle for two minutes,If no problems, run engine at idle for two minutes, the change rpms, two minutes each rpm range.the change rpms, two minutes each rpm range.  Don’t exceed four thousand rpms for the first fiveDon’t exceed four thousand rpms for the first five hundred miles. Change oil at 500 miles. Them at 2000hundred miles. Change oil at 500 miles. Them at 2000
  • Misc.Misc.  Make sure you clean and inspect everything through theMake sure you clean and inspect everything through the rebuild process, this will prevent you from rebuilding arebuild process, this will prevent you from rebuilding a cracked block for instance.cracked block for instance.  Follow the book, specs, procedures, tests, info,Follow the book, specs, procedures, tests, info, measurements and sequences are all critical for success.measurements and sequences are all critical for success.  Organization is key.Organization is key.  Replace all parts if you can.Replace all parts if you can.  Sorry to say, it is cheaper to get a “crate” engine nowSorry to say, it is cheaper to get a “crate” engine now days- saves time, money and worry. They even have adays- saves time, money and worry. They even have a warrantee that you can’t provide.warrantee that you can’t provide.