P40 engine parts that work and those that don't

Won't run? Engine, cooling system, fuel pump, carb, clutch, tranny, brakes, etc. The old messages from the NPCA 'Engine & Mechanical' category are here.

Postby RMP&O » Thu Apr 30, 2015 12:13 pm

I am surprised there is not already a thread on this, in fact I was kind of expecting a sticky! Esteban knows a lot about this. Having done x3 P engine rebuilds using P40 parts I am seeing what works and what doesn't.


What works:
head gasket - OEM still available from Nissan if you want to use a good one
oil pump - OEM still available from Nissan
fuel pump - OEM still available from Nissan
camshaft - OEM still available from Nissan
seals and gaskets - all work except for the timing case cover
oil cap and oil cap gasket - works just fine
distributor - all P40 dizzy's work
oil pan - works fine
pistons & rings - works fine
valves and springs - works fine
bottom end bearings - all work except for #1 which you need to use from the PPU engine. Esteban correct me if I am wrong here.
lifters & guides - work fine


What doesn't work:
anything time gear wise - P40 is a chain driven timing gear, case is completely different along with internal parts
carbs - completely different


What I am unsure on:
manifolds - no idea
head - as an assembly, I think it will work though
crank - no idea
flywheel - no idea

Please add to this what you know.

Cheers
RMP&O Offline

User avatar
You know you own a Patrol when…
You know you own a Patrol when…
 
Posts: 414
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 174 times
Location: Wyoming

Postby miller » Thu Apr 30, 2015 5:26 pm

I have both engines at home. One of these days I'll get off my arse and take photos and measurements for reference. Thanks for the info Ian
Image
1964 MWB Soft top Patrol - 1972 MWB Soft top Patrol "Diablo" - 1977 MWB V8 "Mr Muck" - 1978 G60 Patrol Ute "HP"
miller Offline

User avatar
I love driving my Patrol!
I love driving my Patrol!
 
Posts: 1077
Images: 95
Joined: Wed Dec 05, 2012 4:25 pm
Has thanked: 84 times
Been thanked: 327 times
Location: Geelong, Australia

Postby Esteban » Fri May 01, 2015 11:45 am

Very comprehensive list Ian. :clap: :clap: :clap:

The only correction I'll make in your list is regarding the valve lifters. Totally different in the P40, and needs to be in place before the camshaft is installed.

There is a P40 parts manual, coming from a Komatsu Forklift in the Manuals section:
viewtopic.php?f=30&t=2084


The manifolds bolt on directly :) . My brother did this years ago.
Owner of the same Patrol since 1967
Esteban Offline

User avatar
Patrol Fanatic!
Patrol Fanatic!
 
Posts: 2849
Joined: Sat Feb 23, 2013 11:28 am
Location: Lutherville, MD
Has thanked: 5548 times
Been thanked: 1432 times
Location: Lutherville, MD

Postby RMP&O » Sat May 02, 2015 12:06 am

Well, that is really good news on the manifolds. I say this due to carbs. The Hitachi's are difficult to come by if you don't already have one. Weber is expensive, mixed results with others. The P40 has a two barrel carb, more modern in design. Probably a lot of effort to track down the manifolds just to get a better carb but it is an option. Why did your brother swap to the P40 manifolds. May be able to still get an OEM P40 carb from Nissan. I will search Amayama. I bought one years ago on Ebay for the P40.

Good info on the lifters. I know the cam works cause we just put one in a P engine.

Cheers
RMP&O Offline

User avatar
You know you own a Patrol when…
You know you own a Patrol when…
 
Posts: 414
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 174 times
Location: Wyoming

Postby Esteban » Sat May 02, 2015 1:01 pm

RMP&O wrote:....Why did your brother swap to the P40 manifolds. May be able to still get an OEM P40 carb from Nissan...
Cheers


The swap was done in the 80s. Plenty of parts available from Nissan in Ecuador at that time, and the dealership owners where friends so a good discount also.

My brother didn't like the Hitachi single barrel a bit, so he put the car & manifolds from the P40. Had to work a little with the linkage and also a minor issue connecting the muffler pipe. The overall improvement was minimal compared with the cost so I didn't do it. Mileage was better, and overall range much smoother.

The second stage of the two barrel was vacuum actuated. That posed a challenge in the 9800 feet altitude of Quito (2800m).
Owner of the same Patrol since 1967
Esteban Offline

User avatar
Patrol Fanatic!
Patrol Fanatic!
 
Posts: 2849
Joined: Sat Feb 23, 2013 11:28 am
Location: Lutherville, MD
Has thanked: 5548 times
Been thanked: 1432 times
Location: Lutherville, MD


Postby RMP&O » Thu May 21, 2015 10:25 pm

Sample pics of some of the P40 parts that work in the P engine, OEM parts to boot!

Image

Image

Image

Image

Cheers
RMP&O Offline

User avatar
You know you own a Patrol when…
You know you own a Patrol when…
 
Posts: 414
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 174 times
Location: Wyoming

Postby moore_rb » Fri Aug 07, 2015 9:07 am

What about freeze plugs?

If I order a set of P40 freeze plugs from a forklift supply house, they should work just fine, yes?
ImageImageImageImage

L-R:
White 65 Hardtop L60-3-00617 (undergoing restoration)
Red 65 hardtop 4L60-002565 (scrapped for parts)
66 Hardtop "El-Bondo Patrol", L60-00511 (Restored, then sold June2020)
Blue 67 Hardtop (sold March1997)
Green 62 Softtop L60-2-00504 (undergoing restoration)
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2460
Images: 70
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 814 times
Been thanked: 1291 times
Location: Arizona

Postby Esteban » Fri Aug 07, 2015 10:53 am

Robert, while the old freeze plugs are out, can you measure them?

I hope that the plugs are the same for the two blocks, the P and the P40. From old posts from RiverPatrol I have them at 40mm for the side plugs, and 50mm for the ones on the rear (block and head). But I think they should match exactly a measurement in inches for the P engine, which they don't.

Again, you are the guiney pig on this one! Thanks.
Owner of the same Patrol since 1967
Esteban Offline

User avatar
Patrol Fanatic!
Patrol Fanatic!
 
Posts: 2849
Joined: Sat Feb 23, 2013 11:28 am
Location: Lutherville, MD
Has thanked: 5548 times
Been thanked: 1432 times
Location: Lutherville, MD

Postby moore_rb » Fri Aug 07, 2015 3:30 pm

RMP&O wrote:bottom end bearings - all work except for #1 which you need to use from the PPU engine. Esteban correct me if I am wrong here.


My research (following several hours on the phone today with numerous forklift engine rebuilders ;) ) indicates that all the main bearings between the P engine and the PPU engine are compatible: Here are the part numbers for a full set of main bearings:

12207-58010 - standard (if you do a Nissan parts-counter search on the P engines' original main bearing part number 12207-58000, then 12207-58010 comes up as an updated compatible part number)
12209-58010 - for crankshafts that have been ground .25mm undersize
12210-58010 - for .50mm undersize cranks
12211-58010 - for .75mm undersize cranks
12212-58010 - for 1mm undersize cranks

I am ordering a set of 12209-58010 for my 65 engine right now - I will report back if they arrive and turn out to be wrong... ;)
ImageImageImageImage

L-R:
White 65 Hardtop L60-3-00617 (undergoing restoration)
Red 65 hardtop 4L60-002565 (scrapped for parts)
66 Hardtop "El-Bondo Patrol", L60-00511 (Restored, then sold June2020)
Blue 67 Hardtop (sold March1997)
Green 62 Softtop L60-2-00504 (undergoing restoration)
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2460
Images: 70
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 814 times
Been thanked: 1291 times
Location: Arizona

Next

Return to Engine and Mechanical

Who is online

Users browsing this forum: No registered users and 3 guests

cron