Is it normal for aluminum roller rockers to make a little bit of noise? My valves are in adjustent, theres no tapping or ticking, but just a small pulsing noise. It seems to run great, and the oill seems really clean, so im not too worried, but I was just wondering if this is normal? They are the proform 1.6 ratio ones if anybody is curious.
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Tuners are like Tampons... Every Pussy has one! 72 Mustang Coupe. 347 stroker with Edelbrock Performer RPM Heads. Coast High cam. RPM air gap intake with a 650 Demon. Ceramic coated headers. MSD billet distributor, 6AL box, Blaster 3 coil, MSD wires.
89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
Well, I basically eyeballed it to check the lengths. I bought a set of pushrods that I calculated to be very close and them instaled one with no lock nut, and turned the engine over. It traveled perfectly centered on the valve stem (started just a little on one side and moved across the stem to about the same spot on the other side of the stem, it seemed perfectly centered.) That all should be good. I mean the noise doesn't sound bad, just a little weird, I havent really heard it before, but this is also my first set of aluminum roller rockers. I have always used the stainless ones.
< Message edited by tyler72 -- 5/18/2008 5:51:32 AM >
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Tuners are like Tampons... Every Pussy has one! 72 Mustang Coupe. 347 stroker with Edelbrock Performer RPM Heads. Coast High cam. RPM air gap intake with a 650 Demon. Ceramic coated headers. MSD billet distributor, 6AL box, Blaster 3 coil, MSD wires.
Well, I basically eyeballed it to check the lengths.
Here is you problem, no wonder you have valve train noise.
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89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
Not exactly eyballed, I did check it, but I just used a hydarulic roller and left the lock nut off so that the rocker would move up instead of the valve moving down. I put a thin coat of grease on the end of the valve stem to see where the rocker was going to contact it and wear. It was perfectly centered, so it should be good!
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Tuners are like Tampons... Every Pussy has one! 72 Mustang Coupe. 347 stroker with Edelbrock Performer RPM Heads. Coast High cam. RPM air gap intake with a 650 Demon. Ceramic coated headers. MSD billet distributor, 6AL box, Blaster 3 coil, MSD wires.
89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
Have you ever had a geometry class??? Apparently not. The technique I used works just as well as using a sollid lifter instead of a hydraulic, except that it prevents you from having to waste time, money, and a head gasket. However, this technique will only work if the valve stem and the rocker stud are parallel (which mine are). If the lifter is pumped up, it can push the pushrod without colapsing as long as it doesn't have to push the valve (which it doesn't if there is no lock nut installed). The movement of the rocker tip on the valve stem is exactly the same as a running engine, except that the rocker arm assembly moves up the stud, instead of the valve moving down. Trust me, this technique is just as accurate as any other, and is far more user friendly! With a roller lifter, the heads have to be removed to remove the lifters, so somebody checking pushrod length may have to pull the head(s) and replace the gaskets, until they get it right. With this technique, all of this wasted time and money is prevented, and it works JUST AS WELL! Im just trying to save people time and money. I am having no problems out of my engine, and the wear pattern is looking great. Obviously, the noise is a common thing with the aluminum rockers, so I am ok with it. But honestly, dont knock it till youve tried it. This technique works great.
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Tuners are like Tampons... Every Pussy has one! 72 Mustang Coupe. 347 stroker with Edelbrock Performer RPM Heads. Coast High cam. RPM air gap intake with a 650 Demon. Ceramic coated headers. MSD billet distributor, 6AL box, Blaster 3 coil, MSD wires.
So you say. I can see by your list of parts that you have built many reliable and decent hp engines.
< Message edited by PJC Racing -- 5/18/2008 11:26:09 PM >
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89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
Printable Version
Rocker noise - 
..mine make some noise too
