hang_510 Posted August 25, 2011 Report Share Posted August 25, 2011 Wonder how well one of these kits would work? this was perfect for mine Quote Link to comment
Jester Posted August 25, 2011 Report Share Posted August 25, 2011 I've used one of those before. They do work very well. Quote Link to comment
EricJB Posted January 23, 2012 Report Share Posted January 23, 2012 I don't know what it is, it's a L head on a Z22 block, = LZ22 I have no idea how many CCs it is, I suspect though, if I go back threw this thread, it will say what it is somewhere. :lol: Hey Wayno I needed to wake up your thread to ask you a question, so I thought I would give you a formula for calculating cc's. It's bore x bore x stroke x .0031416= cc's So for your truck it's 89x89x92x.0031416 = 2289.38cc's So I was piecing together the externals for my lz23 today and when I got to the pulley, I found that my z22 came with a harmonic ballancer, and everyting else has a standard pulley. Even the z24. Are you running a harmonic ballancer? Does anyone know why a z22 have a need that a z24 would not? Quote Link to comment
wayno Posted January 23, 2012 Author Report Share Posted January 23, 2012 Hey Wayno I needed to wake up your thread to ask you a question, so I thought I would give you a formula for calculating cc's. It's bore x bore x stroke x .0031416= cc's So for your truck it's 89x89x92x.0031416 = 2289.38cc's So I was piecing together the externals for my lz23 today and when I got to the pulley, I found that my z22 came with a harmonic ballancer, and everyting else has a standard pulley. Even the z24. Are you running a harmonic ballancer? Does anyone know why a z22 have a need that a z24 would not? I have the L20b hardware on the front, from top to bottom, well except for the L16 oilpan/oil pickup tube. Have the Z22 crank and rods, Z24 stock pistons, Z24 240mm flywheel/disc/cover. It is just pulleys that slide over the crank, it's set up just like an L block except for the late Z24 flywheel. Quote Link to comment
EricJB Posted January 23, 2012 Report Share Posted January 23, 2012 Did you get the motor complete? Do you recall what was on it before teardown? Quote Link to comment
wayno Posted January 23, 2012 Author Report Share Posted January 23, 2012 I have a lot of the crap that came on the block, head with EFI assembly, all the Z hardware to mount it, ect. What are you interested in? Quote Link to comment
EricJB Posted January 23, 2012 Report Share Posted January 23, 2012 I've been doing some reading about how the z22/z24's can have harmonic issues. Just wondered what people here thought about it, or if anyone had any problems to relate, and if you were running (or should be) a harmonic ballancer? Quote Link to comment
wayno Posted January 24, 2012 Author Report Share Posted January 24, 2012 Ignorance is bliss for me I think, I needed the double bottom pulley as I have power steering on the 521 work truck, so everything on the L20b went onto this LZ23 block. I just went outside to the shed and looked at what was on the Z22 block when I bought it, it has the same crank pulley as in the photo, same as the L20b. Quote Link to comment
Sealik Posted January 24, 2012 Report Share Posted January 24, 2012 I've been doing some reading about how the z22/z24's can have harmonic issues. Just wondered what people here thought about it, or if anyone had any problems to relate, and if you were running (or should be) a harmonic ballancer? Here's my Z22(LZ23) crank pulley....same as the Z24 Quote Link to comment
EricJB Posted January 24, 2012 Report Share Posted January 24, 2012 Here's my Z22(LZ23) crank pulley....same as the Z24 That is exactly what my z24 pulley looks like. So why would my z22 have a harmonic ballancer? I need to send this stuff to get ballanced on Thursday. Dont know which one to send. Quote Link to comment
Jester Posted January 24, 2012 Report Share Posted January 24, 2012 My Z22 has the same one as Dougs. I would have that one balanced. It makes me nervous switching balancers around. Quote Link to comment
wayno Posted January 24, 2012 Author Report Share Posted January 24, 2012 It has been long enough that I don't remember what was on the Z22E engine anymore, but this pulley was in the box with the Z22 parts I removed from that block, it looks like the L20b ones I have, what did the 200SX Z22E engine have on it, as that is what I beleave my Z22 block came out of. Quote Link to comment
EricJB Posted January 24, 2012 Report Share Posted January 24, 2012 OK so I'm an idiot. I just took the front pulley off the Z24 pulley assy, and found that it has a harmonic ballancer bolted to the front, behind the front pulley. So Wayno, you might want to look into one for yourself as it appears it should have one. Quote Link to comment
Sealik Posted January 24, 2012 Report Share Posted January 24, 2012 OK so I'm an idiot. I just took the front pulley off the Z24 pulley assy, and found that it has a harmonic ballancer bolted to the front, behind the front pulley. So Wayno, you might want to look into one for yourself as it appears it should have one. Which...I assume...looks exactly like this... Quote Link to comment
EricJB Posted January 25, 2012 Report Share Posted January 25, 2012 Identical. But the Z22 is a one piece cast two pulley, not bolted together stamped steel like the Z24. Part of the reason I didn't see it. Quote Link to comment
wayno Posted January 25, 2012 Author Report Share Posted January 25, 2012 What I have is working fine, why would I want to change it, I have everything L block on the front of the engine, if I start changing pulleys, then quite likely I will have to change everything else. Educate me, why do I need what your talking about, this Z22 engine block/crank/rods is a frankenstein at best, and I think I am using the same type of pulley it came with. I have been running this engine for approximately 5 months, and the only issues I have had are issues involving that front headbolt that I stripped out, and that L16 thermostat housing I tried to use to clean up the engine a little, which I went back to the L20b housing within a week. Quote Link to comment
ggzilla Posted January 25, 2012 Report Share Posted January 25, 2012 Z22 and Z24 uses the same crankshaft pulley, at least for some models/some years. Quote Link to comment
Sealik Posted January 25, 2012 Report Share Posted January 25, 2012 Z22 and Z24 uses the same crankshaft pulley, at least for some models/some years. Correct....all the same up to 85.... non TBI.....which is all I got to confirm :D Number of extra belts 'running' on pulley was relative to...PS and AC Quote Link to comment
EricJB Posted January 25, 2012 Report Share Posted January 25, 2012 What I have is working fine, why would I want to change it, I have everything L block on the front of the engine, if I start changing pulleys, then quite likely I will have to change everything else. Educate me, why do I need what your talking about, this Z22 engine block/crank/rods is a frankenstein at best, and I think I am using the same type of pulley it came with. I have been running this engine for approximately 5 months, and the only issues I have had are issues involving that front headbolt that I stripped out, and that L16 thermostat housing I tried to use to clean up the engine a little, which I went back to the L20b housing within a week. I'm not an expert on the subject, but maybe if I post up a bunch of jibberish here, you can get a more intelligent answer from someone who disagrees with me. Harmonic ballancers are used to control harmonic distortion in you crankshaft , which can lead to cracks, or even breakage. I was all set to use my L20 pulley, untill I saw what came off the crank origanally. If Datsun saw a need to use them , they must have realized that somewhere with increased displacment, they turned the crank into a giant tuning fork. There, that should be enough jibberish. Quote Link to comment
Jester Posted January 26, 2012 Report Share Posted January 26, 2012 It's not jibberish at all. A crank comes with a specific balancer for a reason. To throw one on from another engine is a little odd to me. It's one thing if you take it in and have it balanced to the crank, but, to just throw it on because........ Quote Link to comment
HRH Posted January 26, 2012 Report Share Posted January 26, 2012 EDIT: Awwww shit. I necroposted to the first page, not the last. :D Oh well. Weld up those cracks, file it down smooth. That's what I did with the Z24 bottom end in the pickup now. Made it to Canby and back, no issues to report. Been daily driving it since last year. And it's lugging 4000 pounds of D21 around! Those cracks are really just stress relief, the side of the block holds more for the head bolt threads. Don't really even need to weld them, but I would while you have it out. And that's my picture of course! ;) Quote Link to comment
HRH Posted January 26, 2012 Report Share Posted January 26, 2012 On the subject of balancing, the only real issue on the L/Z motors is making sure you use a Z24 flywheel with Z24 crank. With the Z22 or 20 or whatever, the front crank pulley makes no difference for vibration. The 2 liter or 2.2 liter flywheel will work interchangeably on L20b or derivations thereof. Z24/KA24 is the only one that needs the 2.4 flywheel to be balanced. Quote Link to comment
Farmer Joe Posted January 26, 2012 Report Share Posted January 26, 2012 Matt, i have to argue your point there... I have a z24 flywheel and 240mm clutch and PP on the L20 currently.. straight off the 720 from the local yard... If i remember right L and Z cranks were fully counter balanced.. my veiw was they has different pully options for the options the vehicle had and the differences in timing marks per variant/size of engine.. The simple fact is that unless theres a large weight on one area of the pulley, then its just a pulley. Quote Link to comment
wayno Posted January 26, 2012 Author Report Share Posted January 26, 2012 Matt, i have to argue your point there... I have a z24 flywheel and 240mm clutch and PP on the L20 currently.. straight off the 720 from the local yard... If i remember right L and Z cranks were fully counter balanced.. my veiw was they has different pully options for the options the vehicle had and the differences in timing marks per variant/size of engine.. The simple fact is that unless theres a large weight on one area of the pulley, then its just a pulley. You do not need a large weight to balance a pulley, you can also balance it by drilling holes in it. I had a flywheel made from a combonation of two flywheels, as SD25 flywheels are not comman, and they drilled it to balance it. This is a photo of the pulley I beleave came off the engine, as it was in the Z22 parts box from that engine, as that is what I do, put everything in it's own container till I scrap it, or use the parts elsewhere, since it was the same as the one on my L20b engine, I used the one off the L20b. As you can see, it has been balanced by drilling holes in it. I'm not going to worry about it, initially I was lead to beleave the cranks and rods were the same as the L20b, now I see that might not be so, I will put the engine back in the work truck this weekend I beleave, and hope the headgasket issue is gone. Quote Link to comment
EricJB Posted January 26, 2012 Report Share Posted January 26, 2012 Umm, I think we veered a little off course here. Maybe I should have said Harmonic damper, instead of harmonic ballancer. How about harmonic distortion or vibration damper? The reason I was concerned with putting a round thing that belts ran in, instead of the harmonic damper,( that I just realized the motor came with from the factory), is the really bad things that could happen without it. I wasn't thinking about vibration from the rotating assembly being out of ballance. What I was concerned with is harmonic vibrations that can cause flywheels to come loose. or even break the crankshaft. Like I said earlier, at some point Datsun discovered they had turned there crankshafts into big tuning forks, and had to correct it. I was suprised to see it in the box of parts, so I thought I would ask Wayno, knowing he had the same set up. My L20 has the same pulley as Wayno. My Z22 and Z24 both have damper/pulleys. Oh I almost forgot. L20's have fully counterweighted cranks. Z22/24 are only partialy counterweighted. Maybe that has something to do with it. not sure. Quote Link to comment
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