November 11, 20213 yr comment_631402 From the FSM on compression testing. Of course, you'll have to do it cold right now, but follow the rest. Note that the compression ratio will probably be lower with the engine cold, but there should not be a lot of variation in readings. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631402 Share on other sites More sharing options...
November 11, 20213 yr Author comment_631403 2 minutes ago, Zed Head said: Use something more flammable. Starting fluid, carb cleaner, hydrocarbon brake cleaner. Or gasoline. And make sure it gets past the pistons in the carbs in to the runners. will do. FYI though all fuel lines hooked up same as fuel pump and carbs....it should be getting gas...just check the little fuel filter up front and it has a little gas in it which had to have come from the fuel tank. Gas is fresh, only couple weeks old Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631403 Share on other sites More sharing options...
November 11, 20213 yr Author comment_631404 2 minutes ago, SteveJ said: From the FSM on compression testing. Of course, you'll have to do it cold right now, but follow the rest. Note that the compression ratio will probably be lower with the engine cold, but there should not be a lot of variation in readings. thanks for that SteveJ. if i redo the compression test with all the plugs out at same time do you think i will get different results? Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631404 Share on other sites More sharing options...
November 11, 20213 yr comment_631405 It is possible your readings will go up since the other cylinders won't be pushing as hard against the cylinder under test. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631405 Share on other sites More sharing options...
November 11, 20213 yr Author comment_631406 34 minutes ago, Zed Head said: You have reasonable cylinder pressures and the engine is spinning. The engine should start. So, spark is left as the unknown. With the engine spinning that fast you should be able to get a nice stable ignition timing reading with a timing light. If you can do that, it will tell a lot. anyone can recommend a good timing light? dont have one and need to buy...all of em i see on amazon have bad top reviews. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631406 Share on other sites More sharing options...
November 11, 20213 yr comment_631407 You might squirt some oil in the cylinders too. Your low pressure numbers might be because the pistons aren't drawing in the air. Could also be that your carbs aren't working right. You don't know that the float bowls are full. Starting fluid answers a lot of questions. Big time saver. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631407 Share on other sites More sharing options...
November 11, 20213 yr comment_631408 14 minutes ago, Wally said: anyone can recommend a good timing light? dont have one and need to buy...all of em i see on amazon have bad top reviews. Timing lights are hit and miss anymore. The Innova Digital should do what you need for a timing light. https://www.amazon.com/dp/B000EVYGV4 Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631408 Share on other sites More sharing options...
November 11, 20213 yr comment_631409 Oh, and I bought one of these 7 years ago, but it doesn't have a tachometer. https://www.amazon.com/gp/product/B000BSWEHS/ It still works, but I have to use a separate tachometer when tuning. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631409 Share on other sites More sharing options...
November 11, 20213 yr comment_631414 Along with pulling all the plugs, I open the throttle all the way during the test. Link to comment https://www.classiczcars.com/forums/topic/65981-car-will-not-start/?&page=7#findComment-631414 Share on other sites More sharing options...
Create an account or sign in to comment