![]() ( that is a repeat story many times over /ubbthreads/images/graemlins/shrug. I believe in saving money where ever I can, but, anything that saves me time & allows me to make sure a job gets done right the 1st time, then I will probably spend the money on, back in the late 60's when that kind of timing light 1st came out I payed somewhere in the $275-300 range for my 1st timing light with the advance feature, in those days I probably used it 5-10 times a day, it lasted over 30 years until I lent it to my brother in-law & he broke it. Our Ford's reference mark for TDC( at least mine) I don't think there is enough metal to the advance side to make an 8½° BTDC mark. 30°-36° around 2400rpm depending on cam and other mods (this from memory, since I haven't built a vw engine in in 20 something years)on VW's many of them only had a block tdc mark & one mark on the crank pulley, (unless you bought an aftermarket crank pulley with degrees marked around the complete circumference. 5.0 out of 5 stars based on 2 product ratings. When we used to build hot rod VWs we would substitute a centrifigul advance distributor, for the stock vaccum advance distributor, that spec called for approx. item 7 Vintage Sears Penske DC Inductive Timing Light 244.2138+Case+Instruction Manuals Vintage Sears Penske DC Inductive Timing Light 244.2138+Case+Instruction Manuals. A timing advance (checker) timing light allows you to measure total timing advance a specified RPM set advance on timing light & shoot reference pointer & timing groove on crankshaft pulley. ![]() There is a loop on the pulse adapter (for attaching an inductive pick up for timing light or tach), that puts a refererence electrical pulse to run a timing light with inductive pick up. ![]() It 'reads' the pulse/noise of the fuel being sent to #1 injector, similar to the way you hook a timing light to the #1 spark plug wire. My mac tools diesel pulse adapter (see my web page located in my sig), hooks to the #1 cylinder injector line as close as you can get it to the injector.
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