'79 620 Turbo Diesel

ec89ax · **Posted:** Thu Jul 09, 2009 4:41 pm

hello everyone.. well i bought a '79 datsun 620 turbo diesel, but thee engine it has is not the original. i have no idea what engine it is, no numbers on the block or head, i've had this truck for about 3 years and it started to give me a few problems..i'll post some pics

ec89ax · **Posted:** Thu Jul 09, 2009 4:42 pm

The only numbers i found. (on the block)

Pacific coast 620 · **Posted:** Fri Jul 10, 2009 8:37 am

Good lookin 620 altogether. Id post this on Ratsun.net as well. Might get more responses. Sorry im no help..know nothing bout diesels.

Stationwagonguy · **Posted:** Fri Jul 10, 2009 10:09 am

Wow, I'd never seen one of those with a turbo diesel in it. That's bad-ass. And I love 620s... and that color too.

All around, that's quite an awesome truck you have there! More pics/info!

ec89ax · **Posted:** Fri Jul 10, 2009 3:45 pm

thx.. yea its the only one i've seen too, in california.. truck runs strong, but had a small leak in the crankshaft seal.. i opened it and found this

NSR_s30 · **Posted:** Fri Jul 10, 2009 6:31 pm

Yeah I'd post of ratsun. I think someone on there will be able to help. Definitely a sweet truck though.

john · **Posted:** Fri Jul 10, 2009 6:34 pm

The engine name is LD20T. :tu:

Good engine, very stout, and responds well to more boost. Just tough to find parts for.

john · **Posted:** Fri Jul 10, 2009 6:36 pm

Oh, also the LD28 from the 81-84 Maxima shares some parts with this engine, so hunt those down in the JY if you can.

California isn't really a hotbed of diesel activity, though.

610SSS · **Posted:** Sat Jul 11, 2009 8:29 pm

Im using a LD20t exhaust mani on my l18T

ec89ax · **Posted:** Sun Jul 12, 2009 9:56 pm

All right thanks guys. now time to search for parts at the junk yards and ebay lol..

ec89ax · **Posted:** Fri Mar 19, 2010 7:16 pm

Hey me again, lol. I'm having issues with the water pump. Which engine is compatible other than the LD28 from the 81-84 Maxima with my LD20T. Thanks in advance.

ec89ax · **Posted:** Fri Mar 19, 2010 7:34 pm

Here's a few pics of my LD20T water pump

ec89ax · **Posted:** Sat Mar 20, 2010 5:33 pm

I'm also planning on installing an electric fan.

john · **Posted:** Sat Mar 20, 2010 5:38 pm

ec89ax wrote:

Hey me again, lol. I'm having issues with the water pump. Which engine is compatible other than the LD28 from the 81-84 Maxima with my LD20T. Thanks in advance.

Just about any water pump from any L-series engine will work. When you buy a new one (which I would suggest), just ask for one for your car. It should be identical for gas or diesel. :tu:

ec89ax wrote:

I'm also planning on installing an electric fan.

Then I would probably suggest a 510 or 240Z water pump. That will do away with the fan clutch at the same time, giving you more room for electric fans. :tu:

ec89ax · **Posted:** Sat Mar 20, 2010 8:18 pm

datsunfreak wrote:

ec89ax wrote:

Hey me again, lol. I'm having issues with the water pump. Which engine is compatible other than the LD28 from the 81-84 Maxima with my LD20T. Thanks in advance.

Just about any water pump from any L-series engine will work. When you buy a new one (which I would suggest), just ask for one for your car. It should be identical for gas or diesel. :tu:

ec89ax wrote:

I'm also planning on installing an electric fan.

Then I would probably suggest a 510 or 240Z water pump. That will do away with the fan clutch at the same time, giving you more room for electric fans. :tu:

Thanks

, yeah I bought a new ld28 pump. I just need to go pick up the fan tomorrow, and also changing the clutch.

john · **Posted:** Sat Mar 20, 2010 10:13 pm

ec89ax wrote:

I just need to go pick up the fan tomorrow, and also changing the clutch.

If you're putting on electric fans, you don't need the fan clutch. Or did I read that wrong?

ec89ax · **Posted:** Sat Mar 20, 2010 11:37 pm

datsunfreak wrote:

ec89ax wrote:

I just need to go pick up the fan tomorrow, and also changing the clutch.

If you're putting on electric fans, you don't need the fan clutch. Or did I read that wrong?

I meant to write the transmission clutch lol. I'm giving the LD20T a full tune up. Oils, liquids, changing old parts with new, might get new wheels and tires. I want to make sure it runs for a while. Nothing wrong with it, but it needed a full tune up. Thanks for the help :tu:

ec89ax · **Posted:** Mon Aug 02, 2010 8:48 pm

Truck is currently for sale. Price $4350.

ec89ax · **Posted:** Mon Oct 04, 2010 4:16 pm

SOLD the truck.

'79 620 Turbo Diesel

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