mrbigtanker Posted April 29, 2023 Report Share Posted April 29, 2023 Wowwwwww, 5 years later and you got right into, you got the right shaft.lol Quote Link to comment
Doctoraudio Posted May 7, 2023 Author Report Share Posted May 7, 2023 On 4/28/2023 at 7:11 PM, mrbigtanker said: Wowwwwww, 5 years later and you got right into, you got the right shaft.lol Yes, sir! 1 Quote Link to comment
Doctoraudio Posted May 7, 2023 Author Report Share Posted May 7, 2023 (edited) Yesterday. I cleaned all the bolts to fit the front cover on. And also tried to put the head on. The timing chain I have is the wrong one. I ordered a new LB20 timing chain. The one I have is off a L18. Can't close this one up until I have the timing chain! I 3D printed the timing chain spacer! Edited May 7, 2023 by Doctoraudio 3 Quote Link to comment
Doctoraudio Posted May 7, 2023 Author Report Share Posted May 7, 2023 I don't remember anything about either one of these. I think the one on the right is from a wagon. Found them in a box! Quote Link to comment
datsunfreak Posted May 8, 2023 Report Share Posted May 8, 2023 20 hours ago, Doctoraudio said: I don't remember anything about either one of these. I think the one on the right is from a wagon. Found them in a box! FYI, neither of those is for a 510, and will not work with stock steering. 2 Quote Link to comment
datzenmike Posted May 8, 2023 Report Share Posted May 8, 2023 Be sure to push the slack side guide as far over to the right as you can before tightening the bolts. The bolt holes are slotted for that purpose. Do this after fitting the cam sprocket is installed so the guide can move over as much as possible. This also pushes the tensioner back in the holder. 20 hours ago, Doctoraudio said: I don't remember anything about either one of these. I think the one on the right is from a wagon. Found them in a box! Left side pan is for a Z series engine 4x4. It will fit an L20B but the tilt and the deeper part is on the right when installed. On an '80 720 which was the only year for the L20B it would be hitting the front differential. All other years of 4x4 use the Z series engines with the differential on the left or driver's side. The other oil pan is from either/or 2wd 521/620 or an '80 720 with L series engine. 1 Quote Link to comment
Doctoraudio Posted May 8, 2023 Author Report Share Posted May 8, 2023 Thank you all. Trying to get do some other things DatsunMike suggested, too! Going to clean the head up some! If any one needs a the oil pans. I don't need them and I have way to much stuff! Quote Link to comment
Stoffregen Motorsports Posted May 8, 2023 Report Share Posted May 8, 2023 Don't torque the head bolts until you get the front cover installed. 2 Quote Link to comment
Doctoraudio Posted May 8, 2023 Author Report Share Posted May 8, 2023 (edited) I am going to have the local Datsun guru to do the torqueing. Edited May 8, 2023 by Doctoraudio 2 Quote Link to comment
Doctoraudio Posted May 8, 2023 Author Report Share Posted May 8, 2023 I was in the garage looking for something else! And I found another timing chain. It's shorter than the one I tired to fit on! I have no clue what length a chain should be. Anyone know what is the rite timing chain length? Quote Link to comment
Doctoraudio Posted May 8, 2023 Author Report Share Posted May 8, 2023 Another question is should I use the Z22 water pump and fuel pump? Quote Link to comment
datzenmike Posted May 9, 2023 Report Share Posted May 9, 2023 When installed, the number of links between the timing dots are... L16/18..... 42 L20B....... 44 Z20/22... 38 Z24......... 40 The Z22 water pump has a larger flow rate than the 2 liter and smaller engines. If it has the integral fan it may not fit your shroud. 1 Quote Link to comment
datsunfreak Posted May 10, 2023 Report Share Posted May 10, 2023 On 5/8/2023 at 5:48 PM, Doctoraudio said: Another question is should I use the Z22 water pump and fuel pump? I would not. Stick with stuff made for a 510. At least you already know it fits/works. 1 Quote Link to comment
KELMO Posted May 11, 2023 Report Share Posted May 11, 2023 23 hours ago, datsunfreak said: I would not Agreed. I am 90% sure the arm that fits the "Z" motors is different than the arms that fit the "L" motors. 2 Quote Link to comment
datzenmike Posted May 11, 2023 Report Share Posted May 11, 2023 The cam eccentric for the fuel pump is the same for the L and Z series engines. The Z22 fuel pump is physically larger but should fit. L series. Note how tall the impeller is and the depth of the internal cavity... Z series. Note impeller is taller and the cavity deeper... I run the larger Z series on by L20Bs. You are restricted to using the fan and clutch that comes with it as they cant be removed. 1 Quote Link to comment
Doctoraudio Posted May 11, 2023 Author Report Share Posted May 11, 2023 Z water pump it is! I will make sure it spins and is not rubbing! Quote Link to comment
Doctoraudio Posted May 11, 2023 Author Report Share Posted May 11, 2023 I did some measuring. I original hole is 32mm in the head. I grinded it to 35.5mm diameter! Using this for examples! http://www.kangamotorsports.com/blog/2017/1/porting-polishing Quote Link to comment
datsunfreak Posted May 11, 2023 Report Share Posted May 11, 2023 8 hours ago, datzenmike said: I run the larger Z series on by L20Bs. You are restricted to using the fan and clutch that comes with it as they cant be removed. Not necessarily. 😁 1 Quote Link to comment
datzenmike Posted May 11, 2023 Report Share Posted May 11, 2023 Yes you can, and I did do that, and switch to electric. 1 Quote Link to comment
Doctoraudio Posted May 12, 2023 Author Report Share Posted May 12, 2023 Intake 1 and 2 are now 36mm in diameter. Quote Link to comment
Doctoraudio Posted May 15, 2023 Author Report Share Posted May 15, 2023 (edited) Back at it! 2mm more for #3 and 4! Edited May 15, 2023 by Doctoraudio 2 Quote Link to comment
Doctoraudio Posted May 18, 2023 Author Report Share Posted May 18, 2023 Timing chain is at Napa. Pick up after 10:30am! If I can get the Head on with the timing chain. I think I will have a boner! I failed at this 33 years ago. And is why I haven't tried to build another. Quote Link to comment
Doctoraudio Posted May 19, 2023 Author Report Share Posted May 19, 2023 Done for the night. A little bit of clean up tomorrow! Quote Link to comment
Doctoraudio Posted May 20, 2023 Author Report Share Posted May 20, 2023 Chain on bottom is the same size as the new one, I just bought. Quote Link to comment
datzenmike Posted May 20, 2023 Report Share Posted May 20, 2023 That's an L20B chain? Quote Link to comment
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