Hi,
Purchased recently by chance a lovely XK8 with 112,000 miles in A1 condition with full service history. Reading the threads on the forum decided to change upper tensioners. both tensioners cracked, one with slipper missing. checked chains for stretch, then used the zip tie method as timming was perfect.
set the cams so no valves were open at all, and the cams simply lifted with ease. new tensioners installed and primmed these prior to starting engine.

Now engine runs smooth, However, when the peddel is blipped a noise can sometimes be heard, a tap or knock, similar to the noise the engine makes when it expands. is this nomal, do other XK8s suffer similar sounds.

This is not all the time. I decided not to change all tensioners at this time, due to the removal of the crank pulley and see how engine performs. does anyone think this noise could be primary tensioners ?. Perhaps I need to remove sump and see what is there.

Any suggestions welcomed.

Thanks
steve

 

It is likely not an emergency issue, but with your mileage and age I think the primaries and chain guides should be done. While you are in there, the chains as well.

 

hmmm, audiovideo file is definitely needed to hear this blipping click noise you speak of.

 

Hi,
ill get to it, however I might just be being over cautious. I dont like the creaking the engine makes as it warms up. the noise I can hear sounds very much like a chain that could be slapping suddenly against a casing. ill do a clip and post it.

thanks

steven

 

If the slipper broke off then I'd pull your pan. I did the job myself, and upon the insistence of several members here, I pulled the pan and there was quite a lot of debris in the pickup. I was glad I did it.