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: 415
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 173 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: 325 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
Helping others revive their Patrol…
Helping others revive their Patrol…
 
Posts: 2236
Joined: Sat Feb 23, 2013 11:28 am
Location: Ashburn, Virginia
Has thanked: 2881 times
Been thanked: 888 times
Location: Ashburn, VA

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: 415
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 173 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
Helping others revive their Patrol…
Helping others revive their Patrol…
 
Posts: 2236
Joined: Sat Feb 23, 2013 11:28 am
Location: Ashburn, Virginia
Has thanked: 2881 times
Been thanked: 888 times
Location: Ashburn, VA


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: 415
Images: 80
Joined: Tue Apr 14, 2015 12:12 am
Has thanked: 181 times
Been thanked: 173 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?
"Saving the world- One Patrol at a time..."

ImageImageImageImage
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2098
Images: 68
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 567 times
Been thanked: 871 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
Helping others revive their Patrol…
Helping others revive their Patrol…
 
Posts: 2236
Joined: Sat Feb 23, 2013 11:28 am
Location: Ashburn, Virginia
Has thanked: 2881 times
Been thanked: 888 times
Location: Ashburn, VA

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... ;)
"Saving the world- One Patrol at a time..."

ImageImageImageImage
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2098
Images: 68
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 567 times
Been thanked: 871 times
Location: Arizona

Postby moore_rb » Fri Aug 07, 2015 4:49 pm

Esteban wrote: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.


My side ones match perfectly - 1.57 inches, which is 40mm on the dot.

The larger ones also measure 1.97 inches, which is 50mm ...

I found a full set of PPU freeze plugs, and the more research I do, the more I am coming to the conclusion that the PPU engine and the P engine are one and the same... :twisted: So I am ordering the PPU set.

Let's hope I'm right :ugeek:
"Saving the world- One Patrol at a time..."

ImageImageImageImage
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2098
Images: 68
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 567 times
Been thanked: 871 times
Location: Arizona

Postby Esteban » Fri Aug 07, 2015 8:45 pm

Regarding measurements for the freeze plugs:

moore_rb wrote:My side ones match perfectly - 1.57 inches, which is 40mm on the dot.

The larger ones also measure 1.97 inches, which is 50mm ...

I found a full set of PPU freeze plugs, and the more research I do, the more I am coming to the conclusion that the PPU engine and the P engine are one and the same... :twisted: So I am ordering the PPU set.

Let's hope I'm right :ugeek:


Excellent info. So RiverPatrol data has been confirmed. Thanks to both of you.

I've saved from some years ago links to Motor Power Inc., and they call one engine the PPU and the other the P40, so I think you're correct on that the PPU and the P engine are the same.
Owner of the same Patrol since 1967
Esteban Offline

User avatar
Helping others revive their Patrol…
Helping others revive their Patrol…
 
Posts: 2236
Joined: Sat Feb 23, 2013 11:28 am
Location: Ashburn, Virginia
Has thanked: 2881 times
Been thanked: 888 times
Location: Ashburn, VA

Postby RiverPatrol » Sat Aug 08, 2015 12:09 pm

Esteban wrote:
Excellent info. So RiverPatrol data has been confirmed...


O ye of little faith. ;)
Beyond any hope for intervention

Image
RiverPatrol Offline

User avatar
Administrator
Administrator
 
Posts: 5879
Images: 762
Joined: Thu Oct 04, 2012 10:42 am
Has thanked: 3987 times
Been thanked: 1235 times
Location: Temecula, CA

Postby moore_rb » Fri Aug 14, 2015 10:34 am

My PPU freeze plugs and connecting rod bearing arrived yesterday...

Everything matches up, so my research has paid off so far. 8-)

Here are the number from the labels - Both of these kits are from TotalSource, and are made in the USA...:

Freeze Plugs: (this is an engine kit only, it does not include the cylinder head freeze plug)

TotalSource NIFPK-240

Rod Bearings (remember, mine are for .50mm over bored connecting rods):

TotalSource NI 12118-58010


Still waiting on my PPU main bearings to arrive- I will post those results when they get here
"Saving the world- One Patrol at a time..."

ImageImageImageImage
moore_rb Offline

User avatar
Administrator
Administrator
 
Posts: 2098
Images: 68
Joined: Wed Jul 03, 2013 11:49 pm
Location: Arizona
Has thanked: 567 times
Been thanked: 871 times
Location: Arizona

Postby mattmctree@gmail.com » Wed Jan 18, 2017 1:59 pm

I recently went to a komatsu dealer an took my engine manual in but they mentioned that the only motors they can look up are ppu motors. Does anyone know which model of ppu motor is compatible with a 65 engine
mattmctree@gmail.com Offline


You know you own a Patrol when…
You know you own a Patrol when…
 
Posts: 268
Joined: Wed Sep 25, 2013 5:29 pm
Has thanked: 1 time
Been thanked: 51 times
Location: canada

Next

Return to Engine and Mechanical

Who is online

Users browsing this forum: No registered users and 2 guests