Feeling a repeating irregular ‘thump’ at cruising speed, no RPM change

Subscribe
May 23, 2023 | 12:23 AM
  #1  
Hi gang,

After I swapped out my upper timing chain tensioner, removed and reinstalled my distributor, at around 50km/h and above I feel a ‘thump’ like a loss of power for a split second. I don’t see a drop in rpm. Did I bugger up my timing? Forgot to say - 4.0 L AJ 6, 1992 XJS.

Solo out…
Reply 0
May 23, 2023 | 10:07 PM
  #2  
Quote: Hi gang,

After I swapped out my upper timing chain tensioner, removed and reinstalled my distributor, at around 50km/h and above I feel a ‘thump’ like a loss of power for a split second. I don’t see a drop in rpm. Did I bugger up my timing? Forgot to say - 4.0 L AJ 6, 1992 XJS.

Solo out…
l would expect a timing issue to be regular. Have you checked all plug leads are secure?
Reply 0
Subscribe
Currently Active Users (1)