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| New Oil Pump Base & Flowtech Remote |
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| Oil Pump Base,
an essential part of any engine rebuild (pre-serpentine
models). |
Why It's best to fit a new one. (Standard fitment with all RPi engines)
Upon
inspection of so many failed and worn out V8 engines in the
past 15 years, we have continuously encountered two serious
weaknesses in the design relating directly to the mechanical
reliability and oil pressure.
The standard oil pump base (see below) houses the pressure
relief valve/spring which is no more than a piston shaped
valve designed to be forced against the bypass spring, uncovering
the return port and allowing excessive oil pressure to fully
bypass the lubrication system and return directly to the
sump when excessive oil pressure is generated (normally
at very high revs and/or when the engine oil is coolest).
Just fitting a new spring and valve, (especially with the
higher pressure spring,) makes them prone to Jamming in
the 'full-open' (bypass) position, causing possible complete
engine failure.
The reason for this is the majority of wear and scoring
will not be found on the valve (the cheap bit) but in the
actual cylinder of the 'base plate' itself. It is not possible
to recondition this part of the base plate, so the alternative
must be a complete replacement with a new base plate as
supplied with all std. spec. RPi engines.
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Until recently The only way to obtain a new pump base was through Rover, and they cost £££'s, so you can understand why most have chosen the cheaper route in the belief that a high pressure valve and spring will actually increase oil pressure. This does not happen, but you do get an increased risk of engine failure. So the price of a new pump base may be the better solution.
We can now supply these £POA
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We also have Tadpole type relief valves (Oil
pump base) as shown in this picture for the same price (exchange).
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| Complete cover (Serpentine + GEms models) |
The later V8 engines from Rover (1993 on) used a different front
timing cover and the oil pump is 'direct drive' from the crank.
This later engine is generally described as the Serpentine type.
Basically this means the front-end pulleys are not driven by the
std. V-belt type fan belt, but a flat 2cm wide- grooved belt. After
that came Gems type (ie. no distributor).
If your engine is this type, then the oil pump is not replaceable.
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A new Serpentine front timing cover & oil pump (£POA)
For the later V8 (1993 and newer) please note
there are 3 different versions of this, so we will need to
be sure which one yours is. This one, as you can see, has
the hole for the distributor, os is 'Non Gems', but that leaves
2 variations. Although I don't have a picture, the difference
is between the type of cover on the oil pump itself (held
with the 9 Allen screws). |
| Flowtech remote oil
filter kit with new base. |
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| The Flotech oil remote kit
is the ideal solution for those wishing to add an oil cooler
into the system with limited space, also, it enables the use
of the best possible oil pump base. £POA full set as
illustrated. |
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links to other component pages
[ Back to: V8 engine and component information and pricing ] [ Carburation & fuel Injection ] [ Electrical ]
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Prices do not include local EU.Tax.(VAT).
Prices & stock are subject to change without notice. Information and advice, as always, is free.
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