My 300 inline 6 is starting to give me lifter noise. I can hear it at all times but it gets particularly bad when the oil is hot and I shut it off for 30 min, then start it back. After 1 min or so, it settles back down but I can still hear it stapping. As a young guy, I remember simply tightening the nut on the rocker slightly to take the play out. Do I need to be more careful than this and use a feeler gauge or is it ok just to make a small adjustment. By the way, this is a hunting truck/buggy, not for road use.

Also, I have another small V8 that is doing the same thing (it's an AMC 360) so your advice for the 300 will apply to both engines, hopefully.

thank you

 

depends on the year, in 87, they went to a non adjustable set up.

 

How often do you change the oil? They may be starting to gum up a little inside, which will make them less responsive and cause clicking. Try running some Marvel's Mystery Oil or another good cleaner through the oil to see if it helps clean them up.

 

Mine started doing that (not much but i can notice it) when I changed my oil.

 

Any more input on this, still getting the lifter slap/ticking and sure wish there was something that would eliminate or soften the noise. When i start it cold the oil pressure is 60 and when it gets hot, drops down to 35 psi at which point the noise is less but still very noticeable. I just put 2/3 can of seafoam in the crankcase and ran it for 1.5 hrs, didn't notice any improvement.

 

Put a 1/2 qt of Dexron II automatic trans fluid in the oil..... 250 to 500 miles then change the oil.....if this doesn't work you need a lifter

 

1) I have a 1973/74 300 i6 and was told that they can't be adjusted and would need new one . I also have tapping in lifter problem also So can there or not very confusing .

2) I also have a blinker that doesn't return to center when turning left but returns from right. I have a guy on ebay that wants 75 bucks for a regulator is that a good price. I am very sorry to put my comments in you comment but not getting a response from anyone so please forgive me cheers

 

In the US, some guys choose to go to an auto parts store and get a replacement cam for the switch for around $20:



Some people say they don't last real long and replacing the entire switch was necessary, others have had better luck. This may help (use general concepts, this is Chrysler-specific): WINGED WARRIORS/NATIONAL B-BODY - Mopar Turn Signal Swith repair

I don't have any books about the 1970s variants of the I6 (especially those in Australia) so can't say much about your lifter noise.

I would think you'd need to determine if you have hydraulic lifters or not, hydraulic lifters generally aren't very adjustable.

My Ute sucks, how funny.