[steve]

Hello,
Its a mazda protege ’99. 250k miles. interior of intake rubber hose has flimsy presence of oil. its not a puddle by any means. its quite slippery. as the oil accumulates over period of time, it then travels into the intake manifold as well, as the air blows thru the intake system.
conventional oil in use, not synthetic at all.
havent seen oil leaks on the floor, no oil in tail pipe or spark plugs.
pcv is fine.

car isnt experiencing start issue or running issue because of the oil in that area. compression is about 180 psi in each cylinder. it starts on the first take of the ignition switch turn.
just dont want to over look something that could result into issues later on.

so looks like, the oil there is all normal.

is there anything in the inside of the valve cover need to be replaced? not the gasket but where the screws are holding plates. is there anything underneath the plate need to be replaced to stop the oil leak into the intake system?

[steve]

Good point. The Piston top is at TDC. By inserting a screw driver on each cylinder and noticing how far high it can go with the timing marks aligned, gave the sense of TDC. So the TDC on all cylinders seems to be ok. Car starts fine on the first take. No hesitation.

[steve]

here is a compression readings at Day1.

Day2, plug1 was around 150 psi, rest were around 180 psi.

Attachments:

• compressiontests.pdf

[steve]

sounds good. i will try. Thank you for suggestions !! 🙂

[steve]

looks like yes it has jumped. a couple of teeth. spark plugs looks ok. does that mean, damage could be smaller?

Attachments:

• Photo0175.jpg

[steve]

Thanks Cap269.
How does the bad tensioner affect the valves? are they related?

[Author]

Replies