LZ 23 .... nope KAZ23S

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datzenmike
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RE: Re: RE: "80 280zx P/S box

Post by datzenmike » 08 Sep 2007 14:33

Replaced the little plastic breather on the back of the tranny, greased the spline and installed the clutch arm and release bearing and rolled the tranny under the truck. I put a spare spline in the end to keep the oil from leaking out and lifted the back end up and onto the cross member. Now here's something that has never happened to me ever in 40 years of installing trannys. I lifted the front bell into position and shoved the input spline toward the clutch and p/p and it slid forward with a bang into perfect position against the back of the motor. I just have to turn it an inch or two to line up the bolt holes. Usually you cant get the spline in, or have to wiggle the tranny, or jack the motor up for better alignment, twist everything, pain in the neck. It literally fell into place!!

Well I quit for the night, while I'm ahead. Today I got a pair of struts for my Sundance and a KA rad with twin electric fans. I'm in the process of cleaning it up.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

datzenmike
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RE: Re: RE: "80 280zx P/S box

Post by datzenmike » 06 Oct 2007 20:18

Wow, a whole month has gone by. Work has been delayed. Mrs. datzen's store has moved and someone? had to paint the new one, and more! I have the motor bolted up, slave on, starter on and alt wired. Tranny X-member bolted and drive shaft in place only. Haven't done anything in over two weeks... If I don't get my ass in gear before the rains come...
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

datzenmike
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Re: Z24 (E) everything evolves

Post by datzenmike » 19 Jul 2008 18:34

Well last summer I stuffed a Z24 into my '78 and run out of time/weather/enthusiasm so covered it up for the winter. Hate working on my own stuff sometimes. Worried that the intake would become a mouse condo, that I'd forgotten where all the shit parts were etc. Anyway have done some work this summer which included finding that the stock fan was way too close to the 200sx rad. (sigh) Cut the clutch fan off and run a Volvo pusher fan, and am running, or hope to run, a lower rad hose in line temp switch from an '86 CA20 200sx. Spliced it into the hose like this:

[img]http://i138.photobucket.com/albums ... .jpg[/img]

The water pump is the Z engine type with deeper pump cavity and larger pump vanes. With the clutch cut off and the pulley tacked just in case.

[img]http://i138.photobucket.com/albums ... .jpg[/img]

Was thinking of pre-oiling the motor by spinning the pump with my electric drill but found the TDC mark had moved over the winter. Wanted it timed when I removed the distributor. Anyway freaked because I could not turn by hand. Hooked a battery up and just clicks. Bummed for a week. This morning put a good battery on it and click! Fuck-it click-click-click-click-click- Chirp,Chirp,Chirp,Chirp It turns over!!!! Just stuck from sitting. What a relief. Everything is so different when it's your car. Now I know why doctors don't operate on their own relatives.

__________________________________________________________________________________________________
[img]http://i138.photobucket.com/albums ... .jpg[/img]



Here's a handy little thing made out of spare parts. The center shaft from an old points dist. and a drive spindle. (origin unknown) The dist was stripped and the gear removed. I started to grind the teeth off but decided it would take too long. I heated it and tapped it off. I couldn't attach the drill directly because of lack of room, so I gear clamped a small length of tubing to act as a U joint. Could have been shorter for better results.

I removed the distributor, hi-volume pump (already primed with fresh oil) and the spindle. Installed the gear less spindle and put the pump back on. With the dist. out, I slid the old points shaft in and engaged it to the spindle top. Ready to go

[img]http://i138.photobucket.com/albums ... .jpg[/img]

I started off slow counter clockwise same as distributor. Even at 2 turns per second there were some strange sounds as the oil pushed it's way through the galleries. Then a sound like a cross between a kitten and a bird chirping and black oil oozed out of the cam lobes. In a few seconds it was replaced with the fresh stuff I had put in the new filter, the primed oil pump and the oil pan last fall. I ran it for several minutes, even trying different speeds. This should flush out the rod and main bearings too.

I have concluded that it doesn't take much to push oil through the motor. Even cranking the motor with the coil wire off for 30 seconds will give it a good lube. This particular motor has sat for well over a year maybe one and a half.

[img]http://i138.photobucket.com/albums ... .jpg[/img]

Here's the cam oiling itself without running.
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"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

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icehouse
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Re: LZ 23 (E?) Make that Z24 (E)

Post by icehouse » 20 Jul 2008 16:00

Looks good Mike!! I like the drill motor trick :D I used the same thermal switch on my truck, I think it runs a little on the hot side but I don't mind :D Hows the EFI coming together?
"People don't like it when shit doesn't match their rule of thumb." Sam

datzenmike
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Re: LZ 23 (E?) Make that Z24 (E)

Post by datzenmike » 20 Jul 2008 16:10

icehouse wrote:Looks good Mike!! I like the drill motor trick :D I used the same thermal switch on my truck, I think it runs a little on the hot side but I don't mind :D Hows the EFI coming together?
Thanks Jeff. I want to get the stock carb running first. Iron out the bugs and when it feels right swap my ported head with EFI onto it. Ported, polished and even cut the injector notches myself.

[img]http://i138.photobucket.com/albums ... .jpg[/img]
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

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icehouse
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Re: LZ 23 (E?) Make that Z24 (E)

Post by icehouse » 20 Jul 2008 16:13

O I remember when you cut the injector notches in :D Are you going to bring it down for blue lake? I would love to go for a ride in the monster truck :D
"People don't like it when shit doesn't match their rule of thumb." Sam

datzenmike
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Re: LZ 23 (E?) Make that Z24 (E)

Post by datzenmike » 20 Jul 2008 16:41

Wow that would be cool! If, and when, I do ... your on!

It's slow for me. A little here a little there, gas is so high it's depressing. Fun working on it, afraid I'll finish it and not afford to drive it you know? Still have the the inner fenders and rad support from another truck to put on, and then finish my long to short bed conversion. :mrgreen:
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

datzenmike
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Up Date

Post by datzenmike » 02 Aug 2008 18:20

Powered up the electric fuel pump and found the pressure and return lines were switched, (fixed) carb filled up anyway. Accelerator pump squirts fuel.

Here's where I am ...

Z24 from an '88 truck.
Engine had been sitting in junk yard for about 6 months before I bought it about a year ago.
Installed last fall, sat all winter.
Distributor was out to oil engine and put back in properly (I hope)
All 8 wires were put onto the spark plugs but not pushed down so I could remove valve cover again or check the firing order later.
No coolant or rad, again not until I check a few things out for leaks.
Lots of 720 vacuum lines off and open.

I get in and turn key to on and listen to the unfamiliar hum of the fuel pump, and just for the hell of it turn the key... turns over twice ... and fires up!!! WOOT

Turn off quickly as there is no down pipe, no coolant, no rad, clamps on fuel line are loose, in fact nothing is ready for this!!! I am so stoked! Friggin' plug wires weren't even on all the way! I'm a grinnin' fool!!! Can't believe the carb isn't gummed up, can't believe the timing isn't way out and can't believe it turned only twice before barking to life.

Well lots to do to-morrow to fine tune it. Have to join Z24 to stock 620 exhaust pipe. Install rad. Isolate any vacuum lines and plug what isn't working. Lots I haven't thought of.
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jason
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Re: LZ 23 (E?) Make that Z24 (E)

Post by jason » 02 Aug 2008 22:12

Wow Mike, that's great, that means she'll be running this weekend! Congratulations on a nice build on the engine!
Jason

datzenmike
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Re: LZ 23 (E?) Make that Z24 (E)

Post by datzenmike » 03 Aug 2008 08:22

Thanks Jason, you know I only gave it a kick to keep it loose and maybe circulate some oil. Never expected anything to happen. So many wires, hoses ... I mean there are an infinite number of ways for it NOT to work, right?

Yeah, may get it running. I test fit the rad a few weeks ago so thats done and It should hold water. I have several exhaust manifolds even a couple from a 200sx. One has a piece of down pipe, I just have to connect to the stock pipe. I expect the carb will be gummed up after sitting so long but c'est la vie! If that's all, I'm good with that. One of the exhaust had 0.040" clearance! The alt and water pump have a belt on but not the power steering.

This motor sat for maybe 6 months after an accident on Mt Washington. The truck was an '84 with nice maroon paint and reddish flames down the side.. in all not nearly as bad as I describe it. Someone went to a lot of bother with it so I would expect that it wasn't a junker, right? The guys at the yard said that it ran really good. When I got it home and removed the auto tranny the drive plate said '88 pick up, so this motor was a Z24i transplanted from an '88 Hardbody making it newer by 4 years. The plugs are all white-ish/tan color, another good sign.

How are your projects coming along?

mike... and oh yeah, good morning!
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

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Re: LZ 23 (E?) Make that Z24 (E)

Post by jason » 03 Aug 2008 09:34

Morning Mike, well, things are going pretty slow at the present. We've got family over visiting right now and my weekends and evening are given over to the family at present. My friend Andrew has been kind enough to educate me on rebuilding the L series head, it wasn't as hard as I expected! I'm learning new things to help further the journey and it's been fun! I'm off to go golfing with my brother in laws now!

Later

Jason
Jason

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icehouse
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Re: LZ 23 (E?) Make that Z24 (E)

Post by icehouse » 03 Aug 2008 11:38

Its always nice when a rig fires up after sitting for along time :D Mike you when you get it driving you should take a vid of your truck driving over some shit. Like through the mud or something, I've seen very few pics of your truck, even though I would really really love a 620 4x4 of my own. More pics!! :D
"People don't like it when shit doesn't match their rule of thumb." Sam

datzenmike
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Re: LZ 23 (E?) Make that Z24 (E)

Post by datzenmike » 03 Aug 2008 13:37

Body is getting bad. The scaffolding for the chain hoist fell in a wind storm and caved the pass fender in. Missed the hood by 1/4" wow. I have a whole front cut from another '78 from the fire wall forward, it's fenders are good. I guess if I cover it with real mud no-one will notice.

I should work out a deal with some one down there for a good KC cab without the wiring, heater, seats or dash and haul it back up here. Wonder if Tdaaj has one?
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

datzenmike
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Re: LZ 23 (E?) Make that Z24 (E)

Post by datzenmike » 06 Aug 2008 20:17

Rad in, holds water. Runs after a fashion. Idles high, adjusted ignition and its better. Needs p/s fluid before I fry a dry pump. Rad gets hot... a good sign. Down pipe is 2". The quick fix is an adapter to mate to the stock 1 3/4" so I can run a muffler and hear the motor.

Oil light stays on, will not go out. Gage reads, but very low. This is the same sender I used on the old L20B and same dash gage. Only difference is the motor. Checked the pressure relief valve.. looks fine. Put another spare oil pump on... same. Took my hi volume pump off the L20B and installed. Haven't tried it yet. If this does not fix the problem then the pan will have to come off. This motor was originally an '88 Z24i from a Hardbody. The oil pan says a new gasket was put on in '04 and I've had it for over a year and it sat for 6 months so this may mean the 720 oil pan might have been put on it. And if this is the case it might still have a Hardbody pick up that doesn't reach deep enough into the 720 pan. It might be sucking some air or the screen is plugged.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

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Re: LZ 23 (E?) Make that Z24 (E)

Post by merlin » 07 Aug 2008 08:21

Hey Mike, I gave Doug Roy a Z20e 4 plug head complete with all the goodies for those 435 pumpkins... I think a Z24 e would be a simpler biuild for him that a LZ23-24... Just letting you know cuz the questions will be coming....
Merlin from Datsunhistory.com

"test mule? I don't need no stinkin' test mule... Bert Vorgon is my test mule"

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