Need ideas

[drb5721]

The oil is getting dark. However I have changed the oil every 2500 miles since owning it for a little over a year considering I do not know what the previous maintenance was like. I have roughly 1800 miles on this oil change so a good cleaning certainly won't hurt hence the reason I plan to drop the pan.

It is top end noise, not bearing related, unless its main bearings but it sounds nothing like mains. Pulling coil connectors or injectors does not change the noise when revving and it sounds like its coming from around cylinder 1 which is where one of the oiling holes was clogged up.

[tb13]

Originally Posted by drb5721

The oil is getting dark. However I have changed the oil every 2500 miles since owning it for a little over a year considering I do not know what the previous maintenance was like. I have roughly 1800 miles on this oil change so a good cleaning certainly won't hurt hence the reason I plan to drop the pan.

It is top end noise, not bearing related, unless its main bearings but it sounds nothing like mains. Pulling coil connectors or injectors does not change the noise when revving and it sounds like its coming from around cylinder 1 which is where one of the oiling holes was clogged up.

Judging by the amount of gunk on your rockers and cams along with dark oil after just 2500miles, I'd say you have either bad valve seals or an issue with your rings. If exhaust gas is finding a way into your crank case or head it'll gunk up the oil and cause build up like you are seeing. Do a compression test and a leak down test and report back.