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I believe the OE spec tor the oil drain plug is 3/8 BSPP. The threads on mine measure 16.43mm major diameter, which is at the low end of the BSPP parallel spec, 16.662mm +0/-0.25mm. I don't have a metric 55 degree thread gauge but my 1.3mm 60 deg. thread gauge is very close to the spec pitch of 1.337mm. https://amesweb.info/screws/bspp-thread-chart-calculator.aspx

How to Modify Your Nissan/Datsun OHC Engine, original edition: has a blemish on the back cover, excellent otherwise: Price is $20 plus shipping How to Hotrod and Race Your Datsun, original edition: In nearly excellent condition: Price is $100 plus shipping How to Restore Datsun Z-Car, original edition I believe (copyright is 1990) - binding shows some light detachment - all info on pages is intact. Overall condition is good Price is $10 plus shipping PM me with questions. ---Garrett

I posted a recent issue with my Mallory ignition. The Uni-lite ignition module would test bad when the car would stop working but after it sat for awhile it would test fine and the car would run again. After changing the ignition module a couple of times, and with some input from this forum, it turns out that a PO installed a second shunt resistor in series with the first one. I removed the second resistor and so far the car has been working. I think the issue with the shunt was that on removing it, I observed the exposed coil of wire in the shunt was damaged and likely was not giving a constant resistance, possibly no continuity at times. Even if you have just the single shunt resistor, if it fails like this one did, it might cause the same issue.

Price is $1 plus shipping I have several spares leftover from disassembly of an N42 L28 engine. Exhaust manifold in very good condition - all down pipe studs intact ($1 plus shipping): Miscellaneous original engine parts (cam gear, head bolts, dip stick, oil pickup tube, oil pan reinforcement plates, etc. $1 plus shipping for everything in this box, or let me know if you just want one item to save on shipping. Stock pistons (dished) and rods $1 plus shipping: Two pairs of L28 engine mounting brackets ($1plus shipping for each pair). Alternator mounting brackets $1 plus shipping for one upper and lower pair. PM me with questions. ----Garrett

Good question - these are the standard sized original equipment pistons. If anyone has interest, I can take the time to confirm with pictures of measurements, or further pictures showing condition, etc.

Price for the set is $400 for this complete set of seat belts Complete, original Datsun 240z seat belt set from 9/70 in what appears to be very good condition. The webbing is is excellent condition. Chrome looks very good. Buckles are fully functional. Even mounting hardware is present! PM me with questions, additional picture requests, etc.

Bright light and a magnifying glass will tell you a lot. Inside of the cone at the end of the metal line and outside of the cone down the hole. You might see a crack or deformation. You could even polish the surfaces if they look rough. Also polish the surface that the fitting rides on. It needs to be smooth so that the fitting can apply even pressure across the bell shape at the end of the metal tube. Focus on the surfaces that make contact. The threads are only there to apply the force.

I'm happy I could gift you a copy of this manual, for all the effort you put into the whole Event. If you have the missing pages, you can maybe email them to me and I can try to complete the book with the missing pages for you and me. That would be great. Or to just have them digitally would be nice too. Thank you for your support too and for all the good memories made in Japan :-)