Join Date: Apr 2017
Location: down west somewhere
Local Time: 06:03 PM
Mentioned: 19 Post(s)
Quoted: 691 Post(s)
I brought a R53 Cooper S Late 2005 about 2 months ago. The first 3 weeks with the car was fine. After that the oil light started to come on at Idle when the engine was warmed up, this was diagnosed as a faulty oil pump which was replaced under warranty. I then got the car back and 1 week later the tensioner went, sounded like a tractor. I then got the car back once again with a new tensioner and chain. Again it was fine when i got it back, for about 3 weeks this time. But now for the last maybe 5/6 days on a cold morning the rattle is back. That being said it hasn't gone completely yet, it will rattle on a cold start for about 1 second and then completely go.
What could be causing this, i can't imagine it being oil related as its a new pump and the oil light hasn't come on since the pump was replaced a month ago so you would assume the new pump is doing its job, thanks for any help.[/QUOTE
oil pump changed car has run with low or no oil pressure at some point this would cause wear to crankshaft bearings if pressure was so low it allowed the bearing surfaces to meet,, is this rattle a warning of crank shaft bigend bearing, i have found pretty much most cars that have oil pump failures end up with crankshaft bearing issues,, this said i have done cars and replaced the crankshaft bearings and got away with it,,
reality is as soon as oil light comes on there is no pressure so damage will be caused
good tuners/repairs in southwest uk top guys 01579388980
good tuner/ecu body control clones etc lancaster up north uk DALE PHONE NUMBER 07807 222262 top guy.