Re: Bad Engine Noises & Oil Light On
In my experience, I have had this problem with a sticking piston on the oil
relief valve on 3.5s.
It's not a big deal to fix, but the pump has to be primed with Vaseline and
you get strange looks in Boots when you say "haven't you got a larger jar
"Bill Payer" <email@example.com> wrote in message
> I started it up tonight after leaving it over night, it fired up with
> to no noises. Is this any help in diagnosis??
> "m0bcg" <firstname.lastname@example.org> wrote in message
> > you might have spun a rod bearing , common thing on v8s, usually number
> > 7 cyl it will be .
> > knocking noise depends on type of noise and where from, if its a
> > ticking noise that will be the came area probably, if its a thudding or
> > ding ding noise then probably the crank .
> > to make a start you could drop the sump off and check rod bearings on
> > number 7/8 cyls , just take cap off number 7 and 8 rods and see if
> > there is a step in the middle of the crank journal somewhere and also
> > if one of the rod bearings has rotated in the rod end and cap .
> > if youve spun that bearing then youll need a new conrod and the crank
> > grinding on that journal in the least .
> > you can do the crank in the engine but really the heads will need to
> > come off and to be honest it wont be an easy job to put crank in and
> > torque all the bolts up and set everything up .
> > better option would be to find another engine and swap over , or to
> > build another engine up for it or buy a reground crank from someone
> > like REAL STEEL or v8tuner.co.uk .
> > problem with getting reground crank is that if any of the rods have
> > gone youll still need to replace these as well .
> > usually with any bearing trouble at the crank it will be noticeably
> > noisey upon a cold startup in mornings after being left overnight .
> > if you drive with knocking rod bearing then you could end up putting a
> > rod through side of the block and completely wrecking it all , so if
> > you want to save the engine for a rebuild its best to forget drving the
> > vehicle and set to work on it right away .
> > Bill Payer wrote:
> >> Driving home tonight, the oil warning light started to light when the
> >> engine
> >> was idling at junctions, but went out when the revs increased. I
> >> the
> >> engine oil level and it was up to the full mark , after letting it
> >> for
> >> a few minutes. There is also a knocking noise. The engine is a 3.9 v8
> >> EFI,
> >> if it's the original engine, the speedo reads 168,000.
> >> Could it be the oil pump broken or is it likely to be something like
> >> big
> >> end gone?
> >> Thanks.