Patcon Posted March 10, 2023 Share #157 Posted March 10, 2023 I agree it doesn't seem to be oil fouled. I still think it's ignition related. I would replace the whole ignition. Even if just to diagnose. A leakdown test would be good too, because it would tend to rule out a compression or valve sealing issue 1 2 Link to comment Share on other sites More sharing options...
jalexquijano Posted March 10, 2023 Author Share #158 Posted March 10, 2023 Ok. Once again the valve seals for cylinder 4 were changed last year. Link to comment Share on other sites More sharing options...
Mark Maras Posted March 10, 2023 Share #159 Posted March 10, 2023 38 minutes ago, Patcon said: I agree it doesn't seem to be oil fouled. I still think it's ignition related. I would replace the whole ignition. Even if just to diagnose. A leakdown test would be good too, because it would tend to rule out a compression or valve sealing issue Yeah, I've still got that gut feeling that the problem lies between the rotor and the sparkplugs. We know all the components are quality products but the connections are what I'd like to confirm. That cheap inline spark tester in post #152 would be a definitive test. 1 3 Link to comment Share on other sites More sharing options...
Patcon Posted March 11, 2023 Share #160 Posted March 11, 2023 4 hours ago, Mark Maras said: Yeah, I've still got that gut feeling that the problem lies between the rotor and the sparkplugs. We know all the components are quality products but the connections are what I'd like to confirm. That cheap inline spark tester in post #152 would be a definitive test. I would replace it all for expediency. Dizzy to plugs. Once you know it's ignition related you can locate the exact cause by using sections of the substituted system 1 1 Link to comment Share on other sites More sharing options...
jalexquijano Posted March 11, 2023 Author Share #161 Posted March 11, 2023 On 3/8/2023 at 9:37 AM, emccallum said: After knowing you have good compression, I would be looking at ignition. I know you dont want to go there, but this simple tool may give some insight as to the offending cylinder. https://www.amazon.com/Lisle-20610-Inline-Spark-Tester/dp/B0002STSC6?th=1 I have that tool and another used remanufactured distributor. Last time i tried to install it the engine did not crank. Link to comment Share on other sites More sharing options...
dutchzcarguy Posted March 11, 2023 Share #162 Posted March 11, 2023 9 hours ago, jalexquijano said: the engine did not crank. Ofcourse you mean: the engine didn't start. cranking is when the engine turns with the help of the startermotor.. Or "is i" stupido? tell me i'm not offended You checked the ignition by using the (very) old one that ones was replaced? it wasn't replaced for nothing.. Get yourself a complete set for the ignition, loan one or buy one, a loaned one of a perfect working car would be best as you now can be sure it is a good one! ( a old laurel or other 2400cc car can get you one..) maybe someone on your local market can help you. Link to comment Share on other sites More sharing options...
jalexquijano Posted March 11, 2023 Author Share #163 Posted March 11, 2023 Your assumption is correct. Tried starting the engine back then and it did not start. Sorry for expressing myself incorrectly. Link to comment Share on other sites More sharing options...
jalexquijano Posted March 11, 2023 Author Share #164 Posted March 11, 2023 2 hours ago, dutchzcarguy said: Ofcourse you mean: the engine didn't start. cranking is when the engine turns with the help of the startermotor.. Or "is i" stupido? tell me i'm not offended You checked the ignition by using the (very) old one that ones was replaced? it wasn't replaced for nothing.. Get yourself a complete set for the ignition, loan one or buy one, a loaned one of a perfect working car would be best as you now can be sure it is a good one! ( a old laurel or other 2400cc car can get you one..) maybe someone on your local market can help you. I found this old one remanufactured i bought on ebay 6 years ago Link to comment Share on other sites More sharing options...
Mark Maras Posted March 11, 2023 Share #165 Posted March 11, 2023 12 hours ago, jalexquijano said: I have that tool and another used remanufactured distributor. Last time i tried to install it the engine did not crank. @jalexquijano Have you tried the spark tester recently without a different distributor? Plug the tester into each spark plug and see if there's a poor spark on #4. Link to comment Share on other sites More sharing options...
jalexquijano Posted March 12, 2023 Author Share #166 Posted March 12, 2023 On 3/11/2023 at 9:21 AM, Mark Maras said: @jalexquijano Have you tried the spark tester recently without a different distributor? Plug the tester into each spark plug and see if there's a poor spark on #4. Here is the video spark plug 4 20230312_125456.mp4 Link to comment Share on other sites More sharing options...
Mark Maras Posted March 12, 2023 Share #167 Posted March 12, 2023 Thanks for the video. Do the other plugs show the same intermittent spark? I'm betting no. 1 Link to comment Share on other sites More sharing options...
gundee Posted March 13, 2023 Share #168 Posted March 13, 2023 On 3/11/2023 at 7:51 AM, jalexquijano said: I found this old one remanufactured i bought on ebay 6 years ago That thing looks like junk IMO. 1 Link to comment Share on other sites More sharing options...
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