Edelbrock 4730 Camshaft Installation Instructions
Contents
1. Street Strip Camshafts for Honda Acura B Series VTEC Engines Catalog 4730 INSTALLATION INSTRUCTIONS PLEASE study these instructions carefully before installing your new Street Strip Camshafts for Honda Acura B Series VTEC Engines If you have any questions or problems do not hesitate to contact our Technical Hotline at 1 800 416 8628 from 7am 5pm PST Mon Fri or via e mail at Edelbrock Edelbrock com Please fill out and mail your warranty card Note Proper installation is the responsibility of the customer Improper or incomplete installation could result in poor performance related component damage potentially severe engine damage and will void your warranty If you do not feel comfortable installing these parts we recommend having the installation performed by a professional mechanic Description The Street Strip camshafts for Honda Acura B Series VTEC engines provide best performance up to 9000 RPM They are ground from chilled iron and nitride hardened for outstanding durability Due to the increased lift of these camshafts changing valve springs is required Cam Specifications V Advertised YT Duration amp 050 BF O Lobe Lift ee r Gross LA Mh 1 55 rockerratio 490 484 Description Intake Camshaft Exhaust Camshaft Container of Assembly Lube Open 25 BIDG Open 44 aie Timing amp 050 Close 45 ABDC Lobe Separation intake Centerline Recommended Related Products Due to the high2. hook or bent wire hanger then re tighten the bolt Replace the tensioner adjusting bolt access plug wiih Catalog 4730 Brochure 63 0210 19 20 21 22 23 Rotate the engine 5 6 revolutions to seat the belt Bring the engine around to TDC as in step 5 Make sure the cam sprockets are still aligned properly See Fig 4 Replace the middle timing cover Torque bolts to 7 ft lbs Coat the distributor o ring with clean engine oil and install the distributor Tighten mounting bolts to 17 ft lbs Note The distribitor shaft and end of camshaft are notched to elimiinate the possibility of installing the distributor 180 out of time Before installing the valve cover you will need to adjust the valves Set the no 1 cylinder at TDC as explained in Step 5 Make sure the cam sprockets are aligned properly See Fig 4 Using the tappet adjuster wrench adjust the valve lash on the no 1 cylinder The intake valve clearances should be set at 006 and the exhaust valve clearances at 008 The feeler gauge should slide between the rocker arm and the camshaft with a slight amount of drag Tighten the lock nut and re check the clearance It should stay at 006 intake and 008 exhaust Turn the crankshaft 180 counter clockwise The cams should have rotated by 90 Repeat the valve adjustment on the no 3 cylinder Rotate the engine 180 again and repeat the adjustment on the no 4 cylinder Rotate agai
3. rpm nature of the Street Strip Camshafts a programmable or modified ECU is recommended to overcome the rev limiter for off highway race vehicles only Fine tuning on a dyno is recommended for maximum performance We recommend the use of Edelbrock Adjustable Cam Gears 4721 silver or 4723 red to adjust cam timing for best performance To order a catalog call 800 FUN TEAM or visit www Edelbrock com Tools and Additional Parts Required 1 Edelbrock 4737 Street Strip Valve Spring Kit 4 5 8 Spark Plug Socket Wrench 2 Honda 07AA PR3020A Tappet Adjuster Wrench 5 Long Feeler Gauges 006 amp 008 3 Socket Wrench with 10 12 14 amp 19mm Sockets 6 Adjustable Torque Wrench Long sockets or extentions may be required 7 Automotive Sensor Safe Silicone Sealant INSTALLATION NOTES Note Make sure your engine is in good running condition before installing the Edelbrock Street Strip Camshafts If your engine is not in good working order installation of these high performance camshafts could result in premature engine wear It is recommended to check the wear of the camshaft journals before installation by checking the oil clearance as shown in the factory service manual Checking the camshaft end play and rocker arm wear is also recommended Remember When working on your engine especially when oil or fuel is present always work in a well ventilated area Keep all sparks open flames or other sources of ignition away fr
4. spark plugs This will make turning the engine over in step 5 easier Using a 10mm socket remove the remaining eight nuts and washers holding the valve cover and carefully lift off the valve cover Note Inspect the valve cover gasket and rubber seals surrounding the spark plug holes If they are in good condition they may be re used Set the cover gasket and seals aside Loosen and remove the three distributor mounting bolts using a 12mm socket Remove the distributor from the cylinder head and rest it carefully next to the head you do not need to unplug the distributor from the wiring harness Be careful not to lose the o ring seal Inspect the seal for damage If it is in good condition it may be re used Remove the two bolts holding the middle timing belt cover using a 10mm socket Remove the middle timing cover and set aside Turn the steering wheel so the front tires are pointing to the left Now you can access the crankshaft pulley bolt through the fender liner Rotate the engine counter clockwise using a 19mm socket until the no 1 cylinder is at top dead center TDC on the compression cycle The no 1 cylinder is at TDC when the white TDC mark on the crankshaft pulley is aligned with the pointer on the lower timing belt cover Using a 14mm socket loosen the camshaft sprocket bolts approximately 1 2 turn Do not remove the bolts 2003 Edelbrock Corporation Rev 10 03 8 10 11 Page 2 of 4 Check th
5. with the Spring side facing in towards the camshafts 15 Apply a liberal coating of assembly lube to the journals and lobes of the Edelbrock camshafts Also apply a 2003 Edelbrock Corporation Rev 10 03 Page 3 of 4 liberal coating of lube to the rocker arm contact surface and to the journal suface in the cylinder head and on the cam caps Set the camshafts into the head with the keyways facing up Apply some automotive sensor safe silicone to the mating surfaces of the no 1 and no 5 cam caps See Fig 3 Make sure the cam caps are in order and set them down on top of the camshafts Now install the cam holder plates and torque bolts 1 10 to 20 ft lbs and bolts 11 14 to 7 ft lbs See Fig 1 No 5 Cam Caps Apply automotive sensor safe silicone to the lightened areas shown Install the back timing cover and gasket Torque bolt to 7 ft lbs Install the cam sprockets making sure to use the cam keys Hand tighten the cam sprocket bolts at this time Slip the timing belt over the cam sprockets Loosen the belt tensioner adjusting bolt to allow it to tighten the belt Tighten the tensioner adjusting bolt to 40 ft lbs Tighten the cam sprocket bolts to 40 ft Ibs Make sure the cam Sprockets are aligned properly See Fig 4 If you can rotate the belt more than 90 by hand the belt is too loose Make sure the tensioner is not stuck by loosening the tensioner adjusting bolt and pulling up on the tensioner with a
6. at the no 1 cylinder is still at TDC If not continue to rotate the crankshaft pulley counter clockwise until the no 1 cylinder is again at TDC Remove the timing belt tensioner access plug and loosen the belt tensioner adjusting bolt 1 2 turn using a 14mm socket Push on the belt tensioner to remove tension from the timing belt then tighten the adjusting bolt to hold the tensioner in place You may now slide the timing belt off of the camshaft sprockets Remove the cam sprocket bolts and remove the cam sprockets being very careful not to lose the cam keys that locate the sprockets onto the camshafts You may now remove the bolt holding the back timing cover using a 10mm socket Remove the cover and inspect the seal between the cover and the cylinder head if it is in good condition it may be re used Using the Tappet Adjuster Wrench loosen the tappet adjusting screws on all rockers Loosen the bolts holding the camshaft holder plates and camshaft holders cam caps using a 12mm socket on bolts 1 10 and a 10mm socket on bolts 11 14 of each set of camshaft holder plates See Fig 1 A amp 1 B To prevent any possible warpage of the plates and cam caps loosen each bolt 1 3 turn at a time in the sequence shown Repeat until all bolts are fully loosened Ty 3 iii 4 T fry Catalog 4730 Brochure 63 0210 12 Remove each plate carefully keeping the intake cam plate and exhaust plate in order allowing the
7. bolts to remain in their positions in the plates This will allow the bolts to go back into their original positions and is an easy way to keep them in order Set the plates aside 16 Carefully lift the cam caps off of the camshafts keeping them in order You will notice that each cap is marked with an arrow and number that corresponds to its location The arrows point toward the timing belt and they are numbered with no 1 being closest to the timing belt and no 5 being closest to the distributor Make sure to keep the bolts that hold the end cam caps in order as well Note You may need to pry the cam caps loose before lifting them off Carefully use a flat blade screwdriver to pry the cam caps loose See Fig 2 There is an oil seal and dowel pin under the no 3 cam cap Inspect the oil seal and replace if necessary al surface Wrap the end the screwdriver with tape to protect the cam caps 17 18 13 Remove the camshafts one at a time keeping them in order Note The oil seals will come out with the camshafts Take care not to damage the oil seals Now is a good time to inspect the rubber cap near the end of the exhaust cam opposite the timing belt If it is in good condition it may be re used Make sure the o ring sealing surface is clean and dry 14 Remove the oil seals from the camshafts If they are in good condition they may be re used Install the oil seals onto the new Edelbrock Street Strip Camshafts
8. gine above 2500 rpm for at least 20 minutes Vary the engine speed constantly to help sling oil around the camshafts After the run in change the oil to remove any assembly lube Edelbrock Corporation 2700 California St Torrance CA 90503 Tech Line 1 800 416 8628 Office 310 781 2222 E Mail Edelbrock Edelbrock com 2003 Edelbrock Corporation Rev 10 03 Page 4 of 4 Catalog 4730 Brochure 63 0210 CAMSHAFT Street Strip CATALOG 4730 ENGINE Honda B Series VTEC RPM RANGE Idle 9000 RPM Advertised Duration Duration at 050 Lift Lift at Cam Lift at Valve Intake Centerline Lobe Separation Timing at 050 Lift Intake Exhaust Int 288 Int 250 Int 316 Int 490 100 104 Open 25 BIDC 44 BBDC CAMSHAFT Street Strip CATALOG 4730 ENGINE Honda B Series VTEC RPM RANGE Idle 9000 RPM Advertised Duration Duration at 050 Lift Lift at Cam Lift at Valve Intake Centerline Lobe Separation Timing at 050 Lift Intake Exhaust Int 288 Int 250 Int 316 Int 490 100 104 Open 25 BIDC 44 BBDC Exh 266 Exh 232 Exh 293 Exh 454 Close 45 ABDC 8 BTDC Rev 10 03 Exh 266 Exh 232 Exh 293 Exh 454 Close 45 ABDC 8 BTDC Rev 10 03 CAMSHAFT Street Strip CATALOG 4730 ENGINE Honda B Series VTEC RPM RANGE Idle 9000 RPM Adve
9. n by 180 and repeat the adjustment on the no 2 cylinder The valves are now adjusted After adjusting the valves re torque the crankshaft bolt to 130 ft Ibs Thoroughly clean the valve cover mating surface being careful not to get any old silicone or dirt into the engine Clean off the rubber cap near the exhaust cam put a thin coat of automotive sensor safe silicone around it and install it Clean the groove in the valve cover and press the valve cover gasket into the groove in the valve cover Apply a bit of automotive sensor safe silicone at the corners of the gasket that go around the camshafts See Fig 5 Set the valve cover onto the cylinder head and press down lightly to make sure the gasket is seated Install the four nuts and washers that go under the plug wire cover and the four cap nuts and washers Tighten nuts to 7 ft lbs See Fig 6 for torque sequence 24 Install the spark plugs and wires Install the wire cover Tighten cap nuts to 7 ft lbs Connect the PCV hose and the ground wire Connect the negative battery cable Apply automotive sensor safe silicone to the corners of the seal on both ends of the valve cover Camshaft Run In Procedure Edelbrock recommends performing a Run In procedure after installing new camshafts Make sure the oil level in the engine is at the proper level and the oil is clean We recommend using a non synthetic oil during the break in Start the vehicle and immediately bring the en
10. om the work area Failure to do so could result in a fire or explosion causing vehicle or property damage personal injury and or death Before Beginning This installation can be accomplished using common tools and procedures However you should have a basic knowledge of automotive repair and modification and be familiar with and comfortable working on your vehicle If you do not feel comfortable working on your vehicle it is recommended to have the installation completed by a professional mechanic Keeping your specific vehicle s Service Manual on hand for reference is helpful 2003 Edelbrock Corporation Catalog 4730 Rev 10 03 Page of 4 Brochure 63 0210 INSTALLATION PROCEDURE 1 Make sure the engine is cool and the vehicle is on level ground Set the parking brake If you have an original equipment radio with anti theft protection make sure to write down the code before disconnecting the battery After installation you will need this code to restore radio operation It is recommended to clean the valve cover as well as the area surrounding the valve cover to avoid getting dirt or debris into the engine Disconnect the negative cable from the battery Disconnect the PCV hose and ground wire from the valve cover Using a 10mm socket remove the four cap nuts holding the spark plug wire cover Remove the spark plug wire cover and remove the spark plug wire boots from the spark plugs Using a 5 8 spark plug socket remove the
11. rtised Duration Duration at 050 Lift Lift at Cam Lift at Valve Intake Centerline Lobe Separation Timing at 050 Lift Intake Exhaust Int 288 Int 250 Int 316 Int 490 100 104 Open 25 BIDC 44 BBDC CAMSHAFT Street Strip CATALOG 4730 ENGINE Honda B Series VTEC RPM RANGE Idle 9000 RPM Advertised Duration Duration at 050 Lift Lift at Cam Lift at Valve Intake Centerline Lobe Separation Timing at 050 Lift Intake Exhaust Int 288 Int 250 Int 316 Int 490 100 104 Open 25 BTDC 44 BBDC Exh 266 Exh 232 Exh 293 Exh 454 Close 45 ABDC 8 BTDC Rev 10 03 Exh 266 Exh 232 Exh 293 Exh 454 Close 45 ABDC 8 BTDC Rev 10 03
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