New Chimaera 500

[shaunmorris]

I have just bought a Chimaera 500, a few years ago the engine had been rebuilt using forged Pistons. Should I be worried as the engine is noisy when hot, a tapping noise, but a lot worse when the engine is cold. The engine is running an oil pressure of 55psi which seems high ? And I have noticed that the dip stick does not stay pushed all the way down. I have not had the car long enough to tell if it's using oil. Have I bought a pup !!

[shaunmorris]

Not noticed any smoke from mine. What really concerns me is the high oil pressure, worried I have blow past on the pistons which is pressurising the sump

[shaunmorris]

A leak down test may be the way forward, I am asking myself if the crank breather is blocked, would this potentially cause pressure to build in the engine forcing it to push the dip stick out slightly?
I do not object to the engine being a little noisy, provided that is all it is and it's not a simpton of something more serious.

[shaunmorris]

No the car is not yellow, but thanks for the comment, it seems that a little bit of noise is not uncommon

[shaunmorris]

Checking for air being blown out of the oil filler is good idea, I will do that tomorrow.

[shaunmorris]

I have noticed that the oil level is to high on the dip stick by about 15mm would this cause the dip stick to lift. I am not talking about a large amount, it lifts by around 5 mm

[shaunmorris]

Looks like I have a few things to do this weekend, drain off the excess engine oil, check for airflow through the oil filler cap and drive it.

[shaunmorris]

All good advice, thanks

[shaunmorris]

The engine oil had been over filled by 650ml !, I will give a run to the Wiltshire tvrcc meet tomorrow, we will see if it still lifts the dip stick. I also checked to see if it blew out of the oil filler, it seemed fine.