- Thread starter
- #61
I’ve been slack posting updates in this thread, can’t believe I haven’t added anything since May! Still loving the 62 and continuing to make improvements, I’ll highlight a few of the more meaningful ones below:
Over the summer and into the fall I tackled the fairly common “rough idle”. The 62 was also intermittently slow to start when cold, not always but frequent enough to be annoying. My idle was only rough when warm, once warm the idle would fluctuate between 550-800 RPMs and actually stalled out a few times. Some days it was worse than others, not very consistent. After a fair amount of reading I started addressing the likely culprits. Phase 1 was new air intake tubing from @Racer65 and new plugs and wires.
Those things helped a little but didn’t fix the issue. I replaced the water temp sensor and again things got better but didn’t completely improve. I finally let my mechanic take a look and he found several vacuum leaks, once addressed the idle improved immensely but still not perfect.
The battery cables appeared original and the battery was several years old so I decided to address that variable as well. I got a new set of cables from @Fourrunner and upgraded to a Group 27 Duralast Gold battery. I can’t say enough good things about Mark’s cables, great quality and absolutely improved idle/starting consistency. I ended up ordering a kit for my 40 over the holidays and noticed an even bigger improvement on that cruiser!
The final piece of the puzzle was cleaning the cold start injector, it had a fair amount of buildup but a thorough cleaning with carb cleaner had it looking new again. Starting quickness and consistency is now amazing, very pleased! I also feel like this helped the idle smoothness a bit but not sure that really makes sense?
Along the way I also checked out the idle air control valve (mine was super clean, still cleaned it but didn’t make a difference) and read a ton about measuring and adjusting the TPS but never ended up needing to touch it.
The 62 is running like a top now, starts quickly every time and idles smoothly. Not a lot of great pics from this project but I’ll add a few.
Over the summer and into the fall I tackled the fairly common “rough idle”. The 62 was also intermittently slow to start when cold, not always but frequent enough to be annoying. My idle was only rough when warm, once warm the idle would fluctuate between 550-800 RPMs and actually stalled out a few times. Some days it was worse than others, not very consistent. After a fair amount of reading I started addressing the likely culprits. Phase 1 was new air intake tubing from @Racer65 and new plugs and wires.
Those things helped a little but didn’t fix the issue. I replaced the water temp sensor and again things got better but didn’t completely improve. I finally let my mechanic take a look and he found several vacuum leaks, once addressed the idle improved immensely but still not perfect.
The battery cables appeared original and the battery was several years old so I decided to address that variable as well. I got a new set of cables from @Fourrunner and upgraded to a Group 27 Duralast Gold battery. I can’t say enough good things about Mark’s cables, great quality and absolutely improved idle/starting consistency. I ended up ordering a kit for my 40 over the holidays and noticed an even bigger improvement on that cruiser!
The final piece of the puzzle was cleaning the cold start injector, it had a fair amount of buildup but a thorough cleaning with carb cleaner had it looking new again. Starting quickness and consistency is now amazing, very pleased! I also feel like this helped the idle smoothness a bit but not sure that really makes sense?
Along the way I also checked out the idle air control valve (mine was super clean, still cleaned it but didn’t make a difference) and read a ton about measuring and adjusting the TPS but never ended up needing to touch it.
The 62 is running like a top now, starts quickly every time and idles smoothly. Not a lot of great pics from this project but I’ll add a few.
