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mercmad
Ron Bunting

(10 posts)

Registered:
06/27/2019 01:34AM

Main British Car:


Leyland P76 V8 Oiling thoughts.
Posted by: mercmad
Date: July 12, 2019 08:27PM

My little project here,a leyland P76 which is in a VW Squareback came to me with a seized crank ,which apparently came about because the engine is placed backwards and under acceleration the oil pump starved resulting in the crank locking up.
Now what i am looking to do is build a sump with wings (plenty of space) to increase capacity and some doors to keep the pickup flooded with oil.
The next thing is, Does anyone know if the oil pump can be upgraded with later parts without loading up the distributor gears etc on Leyland as on a the rovers etc?

PS I am going to use another engine to get the car running again,which came with the car with plenty of new parts in it .


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5812 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Leyland P76 V8 Oiling thoughts.
Posted by: BlownMGB-V8
Date: July 13, 2019 11:06AM

Sounds like the right basic approach but oversized gears are not needed. Do the standard oiling mods and keep your internal clearances tight and oil pressure should not be a problem. A mid-sump or front sump pan should work for you. Use a 5/8" tube in your pickup and enlarge the suction galley.

Jim


mercmad
Ron Bunting

(10 posts)

Registered:
06/27/2019 01:34AM

Main British Car:


Re: Leyland P76 V8 Oiling thoughts.
Posted by: mercmad
Date: July 14, 2019 07:59AM

Cheers! Jim. I will be using an electric water pump because it's a fair distance to the front of the car to the engine (about a VW length) .So i was thinking of running my alternator via a flat multivee belt ( serpentine style). Would a later style serpentine crank pulley fit the early crank design,assuming the P76 is the same as the rover?


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5812 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Leyland P76 V8 Oiling thoughts.
Posted by: BlownMGB-V8
Date: July 14, 2019 11:05AM

I think it would, but I believe the crank snout is longer so it can drive the oil pump so it may stick out a bit or have to be cut off. You also may be able to find a multi-groove pulley that can be bolted up.

Jim


roverman
Art Gertz
Winchester, CA.
(2990 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Leyland P76 V8 Oiling thoughts.
Posted by: roverman
Date: July 23, 2019 07:35PM

Clock-wise engine rotation ?


mercmad
Ron Bunting

(10 posts)

Registered:
06/27/2019 01:34AM

Main British Car:


Re: Leyland P76 V8 Oiling thoughts.
Posted by: mercmad
Date: September 01, 2019 05:53AM

Sorry about the delay, yes it's a clockwise rotation . I have been busy (with work) and have been overhauling the brakes etc. a bit difficult as the braking system comprises of a lot of different parts from other makes .

Latest thoughts have been about the Cam,it looks to be a performance grind bt has no ID marks except 940801 on one end and CF 731 on the drive end . In the meantime i have also been considering a few designs to copy for the oil pan .
I have access to a water cooled oil cooler from a Mercedes, has anyone used an oil cooler on a Rover or any of the other engines? as it plumbed into the filter circuit ?


roverman
Art Gertz
Winchester, CA.
(2990 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Leyland P76 V8 Oiling thoughts.
Posted by: roverman
Date: September 02, 2019 09:52PM

Look at the Aviad, 4 trap door sump= best. Ad Moroso remote oil bottle, 9 no floating piston)



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