WEBAug 30, 2001 · Wearinduced, loose clearances between the rocker arms and shaft allow too much oil upstairs. With only 5/16inch oil return holes in the heads, the oil pan can be starved. The fix is to ream and bush the rocker arms, then turn and hardchrome the shafts. The stock oil pump is adequate.
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WhatsApp: +86 18203695377WEBNov 15, 2010 · 593 posts · Joined 2007. #3 · Nov 15, 2010. On SBC the rockers cause the pushrod to hit the end of the slot nearest the stud. Comp Cams makes a tool called "the tool" that works great. If you don't elongate the slot, you will have a lot of pushrod and rockerarm problems.
WhatsApp: +86 18203695377WEBRocker Assembly. The stock Hemi rocker arms use a nominal :1 ratio. Minor ratio variations have been found and are not unusual, although this can have a direct impact on the engines performance, both good and bad. For most rebuilds, not intended for allout racing, the small changes are not an issue.
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WhatsApp: +86 18203695377WEB 10:47 AM. Tags. /. 1987 1996 F150 Larger FSeries Trucks The official word on 351W rocker arm torque I've been searching through here looking for proper rocker arm torque techniques. I have a 1996 351W. I see two camps; the 'just torque it to 2025ft/# regardless of cam position and be done with it' people and the 'proper cam...
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WhatsApp: +86 18203695377WEBJun 28, 2008 · Valve Lift with Factory Rocker Arm Ratio: int./ exh. lift Lobe Separation (degrees): 106 ... They often need grinding for clearance. My stepbrother had to grind his, which totally turned me off to ever using these rockers myself, and he was using a " Crower spring. Maybe having ." machined off the retainer .
WhatsApp: +86 18203695377WEBApr 3, 2018 · 2011+ Engine Related Questions 2018 F150 engine noise Purchased an 18 model F150 with in November and after about 3000 miles started having this tick like a belt tensioner/old style lifter rocker arm tick type noise.
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WhatsApp: +86 18203695377WEBApr 6, 2023 · Rememberw/good shafts and minimum ovality, the max clearances should be w/in .002"; Otherwise, the rocker arm will have a wobbly sidetoside action! (and noise?) Also, the rocker arms are rotating on 1/2 half side of the shafts and if the shaft surfaces are OK, they can. be flipped 180 degrees to the good side. Dick Weiss.
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WhatsApp: +86 18203695377WEBAug 1, 2015 · 1: Bush the rockers undersize. Then make a smaller diameter shaft. Then make some sleeves to go over the shaft where it clamps in the pedestals. or. 2: Offset bush the rockers so the tension side is uncompromised. Then try to find shorter pushrods to get the geometry better.
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WhatsApp: +86 18203695377WEBFeb 16, 2005 · Pedestal mount rockers that I have found for the 351C/M/400/429/460 are adjustable with a shim kit, usually a set of .030 and .060 shims. Beyond that if you do any wild machining you will need to get different pushrods. To keep your geometry correct even with stud mounted rockers you need to get different pushrods.
WhatsApp: +86 18203695377WEBJul 17, 2019 · There are a pair of centering cones for the rocker to go between that you drop over the pin. You hold the rocker down and with a little pressure against the cupped wheel, cycle the slide a half a dozen times over the rocker tip and it follows the radius around on the tip really well. It works better than you would think.
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