camshaft end play
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camshaft end play
hey all need help put a new crank in the 302 that was swap in my 76 f-100 turned out the motor is 83 302 anyhooo put new timing chain and gear when I grab hold of the gear cam moves forward 1/4 inch seems pretty sloppy to me have heard some motors use lifter oil pump distributor pressure to tighten end play ????????????????????need help badly
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Joined: Jul 2008
Posts: 157
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From: Mariposa, CA
RE: 302 Timing Chain
I don't know if this will help you or not. Borrowed from
FORD RACING PERFORMANCE PARTS.
http://www.fordracingparts.com/downl...8-F302G302.pdf for you to read.
M-6268-F302/G302 Timing Chain Set INSTRUCTION SHEET
NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT PRIOR AGREEMENT AND WRITTEN PERMISSION OF FORD RACING PERFORMANCE PARTS IS-1850-0035 Page 1 of 1 Tech "Hot Line" (586) 468-1356 Factory Ford shop manuals are available from Helm Publications, 1-800-782-4356
! ! ! PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY PRIOR TO INSTALLATION ! ! !
INSTALLATION INSTRUCTIONS
:
The M-6268-F302 HY-VO<SUP>R multi-index timing chain set features the strongest timing chain on the market. Installation notes are as follows:
<DIR><DIR>• The M-6269-A351 steel thrust plate is recommended.
• Check crank sprocket to cam sprocket alignment. Race cranks usually have a generous filet where the post meets the shoulder in front of # 1 main journal. Make sure the crank sprocket chamfer clears the filet so the sprocket seats flush against the shoulder. Machine rear face of sprockets as necessary to correct misalignment greater than +/- .005".
• Check camshaft endplay. Spec is .003" - .006".
• A hardened dowel pin is supplied and recommended.
• The required dimensions of the crank sprocket result in minimal surface area in contact with the # 1 main journal shoulder. To prevent fretting at this interface the crank bolt must be torqued to 200 ft./lbs. min. with Loctite 262 (red). This 200 ft./lbs. is recommended with steel crankshafts only. Of course this makes removal of the bolt difficult. Some device to positively hold the flywheel (and the engine stand) will be required.
• Testing has not shown any need to balance the cam sprocket and fuel pump eccentric.
• Cam sprocket lightening holes are the engine builder’s option. The sprockets are SAE 8620 steel hardened for wear resistance and strength. The machinist should use appropriate tools.
</DIR></DIR>Replacement chains will be available under part number M-6268-G302.• Check crank sprocket to cam sprocket alignment. Race cranks usually have a generous filet where the post meets the shoulder in front of # 1 main journal. Make sure the crank sprocket chamfer clears the filet so the sprocket seats flush against the shoulder. Machine rear face of sprockets as necessary to correct misalignment greater than +/- .005".
• Check camshaft endplay. Spec is .003" - .006".
• A hardened dowel pin is supplied and recommended.
• The required dimensions of the crank sprocket result in minimal surface area in contact with the # 1 main journal shoulder. To prevent fretting at this interface the crank bolt must be torqued to 200 ft./lbs. min. with Loctite 262 (red). This 200 ft./lbs. is recommended with steel crankshafts only. Of course this makes removal of the bolt difficult. Some device to positively hold the flywheel (and the engine stand) will be required.
• Testing has not shown any need to balance the cam sprocket and fuel pump eccentric.
• Cam sprocket lightening holes are the engine builder’s option. The sprockets are SAE 8620 steel hardened for wear resistance and strength. The machinist should use appropriate tools.
</SUP>
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