This timing light works with most ignition systems (conventional, electronic and computer controlled systems - domestic and import) with a patented skip circuitry to. A typical street engine with a compression ratio of 9. The Innova 3555 Advance Timing Light features a direct reading advance dial that adjusts from 0-60 degrees enabling the user to check base timing and advance or retard timing. Total timing requirements are dependent upon many variables. To check only initial plus mechanical advance, disconnect the vacuum advance. I think all you guys have something to offer and appreciate your comments. By applying a timing tape to the harmonic balancer, for example, you can set initial timing with a standard timing light and check total timing as well. The rotor I thought was way too close to # 8. That 3/8" space, that may be equal to 9 degrees on the harmonic, might have been on the exhaust phase ( assuming the piston rises all the way, and comes dangerously close, to the plug). If the timing was that far off it would seem like the engine would not be running. I found the top of the piston 3/8" below the bottom of the splug hole and got puzzled as to why, when the piston was at that point, the rotor was pointing at # 8 distributor lead. If it reads 4 degrees advanced then the actual timing is. If it does not, then depending upon which side of 0 the mark lies, you will know what the total timing is. " hear and feel" technique be better with a vacuum guage and a a tach ? I was really having a tough time finding TDC poking little things thru the splug hole. So if your total timing is 34 degrees (24 dgrees + 10 degrees initial) then set your light at 34 and rev the engine to just above maximum advance and see if the mark lines up with 0. " hear and feel" technique as described in today's threads. So, now, nobody says that it can be timed with a timing light until we locate TDC and then fasten the sharkteeth accordingly. Professional Advance Timing Light allows accurate adjustment of base and advance timing reading. I just got my 76 Chevy 350 1/2 ton back from my mechanic who this week just installed a brand new rebuilt ATK / VEGE crate engine in it.Naturally, no timing cover came with this engine.When we put the accessories on it prior to installation we conveniently found and used a left over harmonic that was an inch bigger diameter, and according to ATK tech support, was not in concert with the sharkteeth timing marker that would normally be used ( and that normally sets at about 1:00 o-clock ( 70's chevy 350's) on the timing cover). Though, I suspect if many of you arent using a timing light, then.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |