ParadiseXJ
NAXJA Forum User
- Location
- Paradise, CA 95969
MJ coming along...88, 4.0, SWB, BA-10, NP231
Starts right up, plenty of power, tranny shifts fine. Everything about the engine looks and sounds good EXCEPT...on cold start I have a persistent knock at idle. It goes away after about 3 minutes of idling at 750-1000.
Can't hear it at anything over 1500 RPM. After it warms up it's all good.
I have not changed the oil since I got it back in December and I've only out about 50 miles on it since. The oil looks brand new. Only minor apparent leaks (no more than a few drips on the driveway).
So...d'ya think it's just a "sitting too long, needs new oil, higher viscosity or oil additive" type issue. Any reccommendations??
Starts right up, plenty of power, tranny shifts fine. Everything about the engine looks and sounds good EXCEPT...on cold start I have a persistent knock at idle. It goes away after about 3 minutes of idling at 750-1000.
Can't hear it at anything over 1500 RPM. After it warms up it's all good.
I have not changed the oil since I got it back in December and I've only out about 50 miles on it since. The oil looks brand new. Only minor apparent leaks (no more than a few drips on the driveway).
So...d'ya think it's just a "sitting too long, needs new oil, higher viscosity or oil additive" type issue. Any reccommendations??