new harmonic balancer, now got KR

I replaced the harmonic balancer because I was getting some weird vibration comming from the engine under let's say 20 to 40% acceleration. If I went beyond that, the vibration would go away.

Anyway I changed the balancer and retainer and it didn't quite solve the vibration issue completely. The problem now is that I've got lots of KR. Around 1 to 5 degrees that show up from 3k to 4k RPM when going WOT from a roll and past 5K RPM both from a roll and from a dig.

I was running 20.5* of timming virtually knock free since the last time I tunned it in November. I'm not sure if this new KR happened because of the new balancer or not. I only happened to notice the KR because I tried a 3.0 pulley with the balancer change, but it gave me crazy KR, like 7* so I switched back to the 3.1 pulley but still had some KR to my surprise.

I dropped the timming back to 19 and still seeing some of it. I did a crank CASE learn last night, but it doesn't seem to help either. Gonna check the plugs today or tomorrow to see how they look and I also checked for vacuum leaks and none were found.

I'm kind of lost on this one. This car has historically had that werid KR issue always in which sometimes I get crazy KR no matter what timming or fueling I use and then for no apparent reason it goes away.

I also can't hear the engine pinging when this KR shows up. I don't think I've ever heard it ping at all for that matter, I'm not sure how much KR you should have to actually hear it ping.

New or used?

Nevermind, the intercooler didnt have enough water for the pump to move around lmao. I bet that will give you kr XD

Ah, thats fun.

Flow detect might be a good idea.

yup, the flojet pump is leaking. going to order a new one.

buy bosch?

Or is it too late?

Not late yet. Theres a brand new bosch up for sale here on the for sale section.

Meziere...and the flow detect instructions are in How to. With all the part numbers.

Johnson if you can find a cheap one