ld20 into 92 4x4 pickup

[elbow]

I have just begun a conversion on my 92 D21 pickup. I bought a normally asperated LD20 from an importer in Ft.lauderdale, so let the fun begin. any help from anyone who has knowledge of the LD20 would be great. I took the oil pick up off the gas engine and it bolted right onto the diesel and cut the two oil pans in half and welded them together to make a rear sump pan with the correct bolt pattern, because the front axle is in the way on the 4x4. think i might have to fabricate new motor mounts though. it looks like my engine will bolt up to my five speed ok. hope it gives me ok power.

[asavage]

I have just begun a conversion on my 92 D21 pickup. I bought a normally asperated LD20 from an importer in Ft.lauderdale . . .

From AJ @ exportintl (on eBay)?

I want to know how it runs, when you get that far. Feedback is appreciated.

I took the oil pick up off the gas engine and it bolted right onto the diesel . . .

I wouldn't have guessed that, so that's good info!

it looks like my engine will bolt up to my five speed ok.

It should. Though member 240ZD found something odd about the clutch during his conversion, so you may want read his thread.

hope it gives me ok power.

Your D21 had the KA24E? About 134 HP stock. The NA LD20 is going to have about 45-60 HP, give or take. Will that be OK power?

[davehoos]

chain drive LD20 or a rubber belt LD20II .
Displacement, cc 1952
Engine model LD20 II
Max.power (Net), kw(PS)/rpm 67 /4600
Max.torque(Net), N*m(kg*m)/rpm 130 /2400

the LD20II has an oil pump and pick up at the front in the alloy casting and the oil pickup holes in the middle is a dummy.i think the KA is the same.

KA24 in a D21 is a 3 valve Z24.the engine bolts up on the wrong angle.an LD20II shouldnt have a problem with this.as it hasnt got an oil breather seporator in the block.FWD LD20II use a KA gearbox.

if it is an engine of the same vintage the clutch will be similar.the LD20 will be a atsugi 200 mm clutch,heavy duty may have a 225mm and turbo a 240mm.only the different brands fitted may stuff up the conversion swap.

.i would expect an american KA24 to have a atsugi 240mm disc,but some only have a light duty diakin 225mm clutch disc of different design.the extra big flywheel models have a smaller reversed clutch with a FWD trust bearing and fork.

D21 only had Z,NA,KA 4 cyl gasoline engine.all apear based on the same engine block.

[elbow]

Thanks dave, AJ from export int. told me he will get back to me on a clutch and pressure plate combo for my LD20, I dont have either so I need to get one. I'll try the atsugi 200mm if I dont hear from AJ. As for the hp issue, Im a heavy jet mechanic and have to sump the tanks on the aircraft every day so I will be running jet fuel in my truck for free. the company has to pay safetykleen to take it away so I'll be doing them a favor. Just add a little oil to it and your good to go. So less horsepower will be ok, I just need enough to get me to work and back. About the oil pickup, Im not sure I understand what your saying. Do you think the hole im using is a dummy?

[davehoos]

my vanette LD20II had a dummy oil pick up in the center of the block..the engine block had all the drillings of the older engine.except for water pump mounting.the engine is used in different config.water pump,Injector pump etc etc mount differently to suit.

it should have been obvious as a rubber belt drive engine has the pick up at the front,the pipe bolts directly to the oil pump.

http://www.store.partsdinosaur.com/product880.html
late model similar to LD20II.

http://www.store.partsdinosaur.com/product901.html
old style oil pump same as Z24 LD20/28.

what flywheel??.the LD20II has a spigiot added to the crank to stop incorrect flywheel fitting.i cut off the spigiot on mine and used another fly wheel.its the ring gear that is needed to suit the starter motor.on some conversions ive done to get the clutch to work ive fitted the gear to the original flywheel.the flywheel is very heavy to reduce vibration.i drive on he level hyway so thats not a problem.

[elbow]

Dave I have a much smaller diameter flyweel on my engine then the Z24 had, But its alot heavier. Not sure what to do about the oil pickup if the hole im looking at is a blank.Guess i'll run a fabricated pipe to the back. Still cleaning up the engine and removing everything so I can paint it to look like it did origanilly. I saw a pic on this forum of what one should look like and it looks cool. The engine is all black right now but can see some of the old blue. I have alot to check on now since talking to you guys. thanks 4 the help. Bob

[asavage]

Bob, if I'm understanding Dave correctly, the LD20II (cam belt) has a front pickup, directly to the oil pump; the LD20 (no II: has a timing chain) may use the center-ish block drilling.

Dave, do I have that correct?

[davehoos]

yes ,

THe LD20II was made for modern FWD aplication and to be fitted in aplication shared with CA range of engine.it shares ideas with the first fwd CA engines,these are also used in the RWD 910.LD20 car engine has been replaced with the CD20 range.there are now newer engines that ive not seen.YD22 etc.

the chain drive LD20 is the same type of engine as a LD28.

shares common design and parts,the LD20 is taller having longer stroke than LD28-sharing a block design with L20B.you can see from the timing case photo of the KA24E the oil passage through into the block.this is basically the same for a NA20 Z and RWD KA.

on my vanette LD20II the passage was drilled but not used,910 parts manual shows the same design.i guess that as time went on it was deleted but there is no reason that on a factory basis that an oil pump casting could be made to use this oil passage.im thinking C22 largo coach 4X4.the RB/RD series block the oil pick up drilling is on the oposite side due to engine laying over to the left-i dont think this would have been done if it wasnt used in GM-H comodore as in a R31 there is body clearance.

LD engines i think was made to use in 810-910.i wonder if the USA market had not wanted LD28 would it have been built.LD20T has special mention in germany that i cant understand if extra power was needed why not just sell the american version as both are imported.The other main user of LD20 is vanette,there are 2 versions- cherry and sunny vanette/largo.

there was 4 nissan dealer networks[CHERRY-SUNNY-LAUREL-PRINCE]-now there is 2[RED-BLUE-PRINCE-nismo]..Cherry europe is another name used with european nissans.

my guess is that if you purchased models from certian dealers they pushed certian engine.this is why E23 has 2 versions of LD20T and TD range and largo 4X4 coach comes with a rare CA18ET silvia engine.CA are otherwise not used in RWD vans.

the LD engine do apear in other nissans.leorpard-skyline-laurel-cedric/gloria etc.
laurel-cedric tends to be a taxi so SD23 engine is called for.both have LD28 options for comercial and limosine services.LD20 not in models that it would have been good like A10 stanza's[there are diffent look stanza at different dealers].

in some countries capacity taxes exsist like japan malasia italy new zealand and UK..so you see 430 cedric taxi with LD20T.
910 bluebird with L16 in new zealand with power steering and IRS..
I saw 1.1 liter siera wagon in comon use at international airports.horse power not needed.