The car been sitting in my garage for weeks without use until I replace the left front strut which is leaking air.

I started the car this morning and noticed a new sound. It sounds like a sticking or dry lifter. Nothing like a rod or similar. The sound was not there last two weeks ago when I started the car. The sound is there at idle only as soon as I rev the engine over 1500 RPM it disappears. The engine revs smoothly and no check engine lights have came on.

The oil level is good. I'm using Royal Purple 5W30.


Any ideas?

 

there are bucket shims that recess into the heads on top of the valves .
for the valve clearance adjustment . and for the cam lobes to strike .
not lifters as such , these are known to stick to the walls of the valve spring cylinder.
due to oil varnish .
mine has done this twice normally caused by too many short runs .
the first time an oil change and a long hot run fixed it , but it returned .
i found the graphite oil additive "proma MBL8" to be a permanent fix.

 

Thanks for the reply. I will look into that additive.

 

check this out , its real slippery stuff .

 

Impressive.

 

Who sells this additive?

 

this is there on line store .

https://nwarburton.pro-masystems.co....083&MenuID=128

most auto shops here in NZ stock it .
also its some times available on ebay .

 

Since this product has "The primary active ingredients are micro-metallic particles suspendedin the base oil." I would strongly advise BG MOA, available from most dealerships and certainly online.

 

You strongly advise for it or against? Seems like you missed a word, "against".

I have never used this product but sounds promising. My only fear is the micro-metallic particles.

 

See the STP thread. I use what I know has proven itself over decades of use in literally 10's of thousands of vehicles of my own knowledge, proven track records of thousands of dealers and techs. I have no experience with the MBL8 product.

 

i can only speak for pro-ma as i have been using it for over 20 years my self .
with no adverse affects ,
bar one ; graphite additives makes your oil look a little dirty , even new oil .
there are thousands of positive reviews for mbl8 . and zero negative ones that i can find.
and a lot of the reviews also state over 20 years used with great results also .
that says some thing !
judging by the fact both pro-ma mbl8 and bg moa both use the same or very similar demonstration equipment , id say the products are near enough identical.

i my self watched two engines running on a stand at a show 22 years ago .
one had the mbl8 added , the other did not .
they drained both of there oil ./ and set them both to 3000rpm .
the engine without mbl8 knocked loudly almost instantly and blew up with a hole in the block in under 1 min .
the mbl8 engine went for just over 8 min then slowed and seized .
ive been using it since .
the first time i added it to the jag was the last time i've heard any valve train noise from it .im sold on the stuff . if there is an easier product to get hold of , and its basicly the same stuff , then go with that .

p.s i thought the moa was extinct .

 

Without a MSDS, I have nothing to compare.

 

I went ahead and ordered a bottle of LubeGard Bio Tech Engine Protectant. This one does not have metal micro-particles so I feel more confident when adding to the engine. I just can't fathom the idea of having metal protecting metal.

 

I just ordered the same and put in my XJR for good measure... thanks for sharing...

 

I haven't yet used it since the oil level is a tad over full. The lube place over-filled it. As soon as I'm not in agony from wisdom teeth extraction last Friday, I will dump a little oil for me to pour LubeGard.