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#21 Lockleaf

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Posted 21 December 2016 - 12:03 PM

I'm with CG. Triple webers is worth more on the open market.

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#22 logan66

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Posted 21 December 2016 - 12:27 PM

I'm pretty sure he should be paying you. Before I bought my RB I had multiple price quotes for the L28et for $700-$1000 for the whole engine.

A set of triple webers+intake is $1750 from MSA if I'm not mistaken.

Yeah I'm thinking the same now.  I saw about that same price on theZstore today.  I knew that the L28et was more rare than the N/A but I didn't know what that stuff would be worth all together for it.  Anyways I think I'll pass on the trade now.  Thanks for the info!



#23 Bleach

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Posted 22 December 2016 - 03:07 AM

Try to get current market prices for those items used. My idea of value on those is a few years old but the webbers would be worth more than just "some" parts from the turbo L28


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#24 datzenmike

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Posted 22 December 2016 - 07:37 AM

It's also a old technology turbo likely well used. Expect it to be worn out and you are only getting the rest for the price.


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#25 logan66

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Posted 03 January 2017 - 06:59 PM

Hey guys! I just wanted to update my thread since I haven't updated anything in awhile and wanted to share with everyone.

 

So I started out by cutting out the rust out under the battery tray including the tray itself.  Then I welded in some sheet metal (I know my welding skills aren't the best so go easy on me haha) 

 

rusty_zpsu73gp5kd.jpg

 

cut%20out%20rust_zpsgoxconru.jpg

 

welded%20tray_zps9yfcdevs.jpg

 

 

After all that I cleaned up the engine bay, sanded it all down and sprayed it, here's an oic!

 

painted%20bay_zpshlzg7zgp.jpg



#26 Bleach

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Posted 04 January 2017 - 02:09 PM

not too shabby 


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#27 logan66

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Posted 22 March 2017 - 05:44 PM

Hey guys, haven't posted on this in forever.  Been busy with school and other crap.  Anyways I've decided to go a different direction with the car.  I finally found a good deal for an l28et to put in the car.  Anyways I've ran into what i think is a potential problem that i think one of you might be able to enlighten me on.  So it look like there is an oil cooler adapter plate that goes where the filter should be.  Unfortunately it didn't have one on it when i got the motor.  I read that an oil cooler wasn't a necessity (which may not be true) but looking at the block with the filer goes. I see and inlet for the oil and the threads where the oil goes through the filter and into the block, the only thing ive noticed is there is no bypass for when the oil is cold.  The L28e has a little bypass valve where the L28et doesn't.  So my question is, did the oem sandwich plate for the oil cooler have a bypass valve in it?  If anyone has any info on this I would appreciate it because I can't find any solid info on this.

Thanks in advance!!

bypass_zps9x9rql6h.jpg



#28 Slowpoke

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Posted 23 March 2017 - 04:40 AM

Yes the sandwich plate had a bypass. You can run it without the oil cooler or get an aftermarket one. You can order the stud from online. Check MSA.



#29 datzenmike

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Posted 23 March 2017 - 06:28 AM

Only the much later 280zx turbo automatic came with an oil cooler.

 

The oil cooler adapter is cast steel so maybe yours is some after market thing.

 

There is a small round ball with spring behind it in the block called a by pass, but is a safety device should the filter become blocked. The oil will force past the ball/spring and still lubricate the engine.


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#30 logan66

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Posted 23 March 2017 - 05:47 PM

I see what your talking about with the ball and spring by pass.  I have a pic of the l28e bypass but i guess i just dont understand where the bypass is on the l28et, can you not see it on that motor? It just scares me with that plug on turbo block where the bypass is on the other block. Is it physically in the block where you cant see it?  Basically i just want to know if i can buy the oil filter stud like and throw on a filter and still be safe.  Thanks for the info guys i appreciate it.  Also this is an 83 L28et but i dont know if it was from an automatic if that helps.

bypass2_zpsafgjolk5.jpg



#31 datzenmike

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Posted 24 March 2017 - 05:47 AM

LZ23015Large-1.jpg

 

This is the ZX turbo oil filter adapter for the oil cooler. It only came on automatics. It does not have a 'by pass' for when the oil is cold. It is clamped to the block with a large hollow bolt in the center.

 

LZ23014Large.jpg

 

This is the oil tube than came on this Z22 block.


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#32 logan66

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Posted 15 April 2017 - 03:34 PM

So I started wiring up the FI harness today and realized that the harness the guy sold me wasnt the harness off of this particular motor.  Which is a bummer but thats my fault for not looking closer at it when i bought it. but is there anyway i can tell from the harness or ecu what year it is?  Also i ran into an even bigger problem the the FI harness that there,s no throttle position sensor on the harness and i cant find anywhere that looks like it was cut to be missing.  This is the plug i thought it should be but it doesnt fit the sensor, so maybe is there a different sensor plug in for the year of harness i have and motor if they are from different years.  I was following a thread on hybrid z that went through the wiring in fairly good detail but he was doing an 81 harness so mines a little different but everything was mostly the same up until this point of me not having the throttle position sensor.

 

sensor_zpszff1bdbk.jpg

 

heres maybe what i thought it should of been, it basically is the same plug as the fuel injector plugs and from the layout of the harness is kind of the right spot.  Anyway i have the right throttle position sensor plug that will fit from my 77 harness i could probably make use of if that is the case.  But any info you guys can give me would really help me out, Ive been on the internet all day today seeing if anyone has had similar problems but im getting pretty frustrated with it.  I also have a pic of the motor in the car, the motor doesnt really look nice but i thought it looked cool in the car without the fenders on it so im gonna post it anyways, again thanks guys!

 

in%20car_zpskmkuvgxx.jpg

 

 

 

 



#33 logan66

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Posted 15 April 2017 - 04:23 PM

so i just found from the jecs number that the ecu is from an 82 turbo/manual so I would hope the harness is as well, if that info helps anyone. Thanks again!



#34 CGraves

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Posted 15 April 2017 - 08:22 PM

I mean really if you had to it wouldn't be horrible just making your own harness if you can't get something that'll work.



#35 Slowpoke

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Posted 16 April 2017 - 09:46 AM

You need the 82 280zx fsm and turbo supplement. Have a few hours with the wiring diagrams, and fuel sections. Its going to be really hard to get it running if you don't know what everything is, what you have or is missing. Everything you need to know is in there.

 

Does your engine have the CAS on the dizzy or on the front cover? If it is on the dizzy you "most likely" have and 82-83 engine. If it is  on the front cover, a 81 engine.

 

You can use the manual to locate the ECU connector pin for the TPS. Follow the wire from the connector and voila! You can use this method to find just about any connection to an electronic device on the harness.

 

I believe only the 81 harness used the dropping resistor pack, might want to double check, but the absence of it would let you know if you have the appropriate harness.

 

While you are at this stage, make sure you test all of your sensors and clean all of the connections.



#36 Bleach

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Posted 20 April 2017 - 08:13 AM

As far as the Factory Service Manuals go, 1981 had the suppliment. 1981 280ZX manual covers the non-turbo and has a separate smaller book for turbo specific parts as that is the first year the turbo Z was sold. Then in 1982 and 83 you have different chapters inside of the main book that go over the turbo related parts.

 

Not knowing the harness can be pretty bad. I would say that 1981 was the odd year and 1982/83 are the same for most everything on the turbo Z.

Mainly you'll find differences near the distributor. 1982/83 will have a round plug that connects to the distributor for the internal crank angle sensor. 1981 that plug wire is longer and goes down to the front of the engine where there is a large metal crank angle sensor.

 

All three years should have the same type of throttle position sensor and those sensors look the same as the non-turbo. I think the turbo Z lacks one switch inside. So the non-turbo has: Idle, off-idle, full throttle. The turbo Z might have idle, and off-idle only. (if I'm remembering correct)

 

What you had pictured in your hand looks like the plug that goes on top of the throttle position sensor and those two black wires look exactly like the ground wires that connect to any part of the top of the intake manifold.


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#37 logan66

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Posted 29 April 2017 - 11:03 AM

Thanks for all the info guys, it really helped my hands on the wiring diagrams.  I ended up just getting a Haynes manual for the 280zx turbo supplement. I have either an 82 or 83 harness because it doesn't have the drop resistor. And following the wiring diagrams from the Haynes manual the two little blue wires in the pics I posted above were for the tps sensor haha so I have no clue where the acutual plug went but it made sense because the wiring diagram only showed two wires headed back to the ecu from the sensor so ill eventually steal the plug sensor off my other harness for it.  Anyways I got the entire FI harness ready to go today and just started with the ignition side, but I ran in to problems with me not having this loom the guy talks about in the write up ive been following and also I didn't realize I needed the coil bracket from the zxt.  Anyways I looked them up online and they aren't cheap, so I feel like I should be able to make something work with my old ignition harness but its probably going to be a bit over my head so one of my dads friends who is a mechanic is going to come take a look.  He's a very skilled mechanic but I was just wondering if there's anything huge I'm missing that will cause me and him problems trying to make something out of the old harness and ignition parts?  From what I saw from the write up on hybrid z the guy wasn't really using much from the ignintion harness.  If anyone who knows of maybe problems we might run into trying to use the old harness or things to look out for I would appreciate it because it will help us both out.  But anyway thanks for all the help so far I got a lot further than I originally thought I would haha heres the post from hybrid z if anyone is curious to what im talking about with the coil bracket and stuff.

 

http://forums.hybrid...rbo-swap-guide/



#38 Slowpoke

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Posted 01 May 2017 - 06:39 AM

Pro-tip: Don't let you mechanic friend tear up your harness. He's probably not going to understand the l28et wiring setup just by looking at it. You probably know way more about it than he does at this point.

 

You are defiantly going to need a l28et ignitor. A HEI might work, but i haven't tried it.

 

Really though, sit down with the harness and ecu, and go through the ecu pin-out diagram in the manual. Look and learn about the function of all of the devices and how to test them. If you try to short cut this you will have problems. Label all of your connectors and see what if any you are missing.



#39 logan66

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Posted 02 May 2017 - 03:53 PM

Yeah that's a good tip lol there was a lot of stuff I had to explain to him and it was really unproductive but hopefully ill get this bracket with the ignitor soon.



#40 logan66

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Posted 02 June 2017 - 07:21 AM

It's alive!!!! Had a couple hiccups with the wiring but it's all worked out now. I have a lot of work to do now to get this thing road worthy but hopefully it will start coming along faster. Unfortunately I only have weekends to work on it because I'm working in kc this summer and living at my sisters through the week. Anyways, thanks for all the help guys. Here's a link to a YouTube video of it running and a couple light revs. It sounds like crapt because I have no exhaust or downpipe for it right now lol but oh well.