Re: V8 oil pressure

"Steve Taylor" <[email protected]> wrote in message
news:[email protected]...
> Badger wrote:
>
> > Most likely the dreaded sticking relief valve. Dunno what you should be
> > seeing, never actually used one of these kits myself, I prefer to fit
the
> > later front timing cover and SD1 gears. Std pressure is 35psi nominal (+
> > or - 5psi) at 2400rpm. If below 30 at 2400, bearing wear will shortly
> > follow. Healthy engines normally show 10psi+ at idle.
> > The pressure will build with rpm until it reaches the relief valve
opening
> > pressure, after this point there will still be an increase with rpm, but
no
> > longer linear if you see what I mean?
>
> Now, to my v8, which I am not sure is building pressure, because I don't
> know if the pressure switch is working: it may be stuck, or it may be
> that the damned wiring is knackered round here too. I don't see a feed
> to the switch on any of its three terminals.

Must confess, never had dealings with the 3wire sensor and I ain't got a
wiring diagram in front of me for a 101.
>
> Is there a standard O.P gauge that one can get for these engines ? I'd
> like to know how the pressure is building as well as go/no go

I have a 0-100psi gauge with a quick-release bayonet fitting, brazed to a
threaded connector that replaces the oil press. switch, that's what I use to
check the pressures when I rebuild my engines. Can't for the life of me
remember where I got it though.
>
> IF there is no O.P, can I open a convenient oil gallery to prime the
> pump, rather than this buggering about with vaseline (as it were..)

Sorry, fraid not. The only thing you could try would be to remove a rocker
cover, remove the rocker shaft (careful not to knock any of the pushrods!)
and trickle oil down the rocker feed oilway at the front shaft support block
mounting face. This would take some time and I'd bet you'd be quicker just
removing the pump base and packing with petroleum jelly.

--
Badger.
B.H.Engineering,
Rover V8 engine specialists.

now live but still under construction,
www.bhengineering.co.uk
www.roverv8engines.com
www.roverv8engines.co.uk

Badger wrote:

> Sorry, fraid not.
Bugger.
Ah well, out with the vaseline then.

Thanks for the tips.
Steve

"Badger" <[email protected]> writes:

> > IF there is no O.P, can I open a convenient oil gallery to prime the
> > pump, rather than this buggering about with vaseline (as it were..)
> Sorry, fraid not. The only thing you could try would be to remove a rocker
> cover, remove the rocker shaft (careful not to knock any of the pushrods!)
> and trickle oil down the rocker feed oilway at the front shaft support block
> mounting face. This would take some time and I'd bet you'd be quicker just
> removing the pump base and packing with petroleum jelly.

I've always primed the pump by taking out the dizzy and spinning the
pump with an electric drill. I now have a number of slotted bits of rod
for this purpose. Worked even when the time between building and the first
starting attempt was in the order of a year or two. Never used the
vaseline method.

Beth

"Beth Clarke" <[email protected]> wrote in message
news:[email protected]...
> "Badger" <[email protected]> writes:
>
> > > IF there is no O.P, can I open a convenient oil gallery to prime the
> > > pump, rather than this buggering about with vaseline (as it were..)
> > Sorry, fraid not. The only thing you could try would be to remove a
rocker
> > cover, remove the rocker shaft (careful not to knock any of the
pushrods!)
> > and trickle oil down the rocker feed oilway at the front shaft support
block
> > mounting face. This would take some time and I'd bet you'd be quicker
just
> > removing the pump base and packing with petroleum jelly.
>
> I've always primed the pump by taking out the dizzy and spinning the
> pump with an electric drill. I now have a number of slotted bits of rod
> for this purpose. Worked even when the time between building and the first
> starting attempt was in the order of a year or two. Never used the
> vaseline method.
>
Fair comment Beth, that's how I do it myself on all the engines I build
(non-serpentine, obviously) but the poster asked about opening an oilway so
I presumed they knew about the priming tool but didn't fancy removing the
dizzy.

--
Badger.
B.H.Engineering,
Rover V8 engine specialists.

now live but still under construction,
www.bhengineering.co.uk
www.roverv8engines.com
www.roverv8engines.co.uk