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Arguing with your machinist is worse than arguing with you doctor, he's always right no matter if he's wrong.

Aside from replacing a part that meets Nissan specs, another factor to consider might be that used Nissan is probably better than new aftermarket.

How much? Did you see them run or are you passing on information?

Those run through the manifolds to warm up a cold set of carbs. They circulate coolant through the bypass lines on the passenger's side and then the thermostat housing. I think they are a potential leak waiting to happen so I have mine disconnected. It's plenty warm in Alabama so they add unnecessary heat through my manifolds. The bigger one near the windshield is actually a thermostat that closes the flow off when it gets to a certain temp and you're right about the front nipple, it goes to the thermostat housing. Here's a bunch of threads about it. https://www.google.com/search?q=240z+intake+manifold+coolant+line+classiczcars.com&rlz=1C1VDKB_enUS1121US1121&oq=240z+intake+manifold+coolant+line+classiczcars.com&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIHCAEQIRigATIHCAIQIRigATIHCAMQIRigAdIBCTMwNTQ5ajBqN6gCALACAA&sourceid=chrome&ie=UTF-8

I have wheel and tires sets for 240z, 280z, 280zx, and 300zx cars. Some sets are OEM and a few aftermarket wheels. Most are in great condition. I set of early z cylone wheels not so hot Let me know what your looking for and I will let you know if I have it. Pick up only in Northeast NJ. Will be posting pics in the next few days. These have been in storage for 20+ years.

Thank you Gav.

I know you don’t want to hear this as well but he’s been very responsive about information and tracking my orders.

Adding an update here: I haven't found the root of the issue. I keep the car at my parent's house, so it's not always easily accessible, but I'm thinking that maybe a brake line got kinked a bit during installation. I plan to check those next. If I don't find anything there, I will switch to the old booster and see what, if anything, changes.

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So it's been awhile since I last posted. Remember that aftermarket ECU? I found out it was bad and causing starting issues and the high idle condition. I happened to find an original replacement ECU from another 1976 2+2 and that solved my problem. I also found that the TPS was missing a screw and out of position on the throttle body. As it turns out, the missing screw had broken off inside the throttle body. I was able to source a used one and installed it. Everything now seemed to work except for the temperature gauge. This was baffling to me since I had replaced it with a new one when I replaced the thermostat and the housing. However, that one was a two piece unit. I tested the temp gauge and wiring by disconnecting the connection to the sensor, temporarily running a wire from the the connection to ground and turning the key to the on position. The gauge needle moved from resting position to max within a few seconds, eliminating the possibility of a defective gauge or wiring. This was reassuring, since I was not looking forward to having to troubleshoot a wiring issue, nor did I want to have to go and try to find another gauge. So, I purchased a new temperature sensor, this time a one piece unit. I had some free time to install it yesterday, and Voila! I once again have a working temperature gauge. Here's the one that didn't work: Here's the one that worked: And the proof:

Thank you! Oh there's rust in it, not too bad though in most places. I think that under the hatch sill is probably the worst of it.

It says on BAT and other places...🤣 https://www.facebook.com/marketplace/item/4161254077491653/?ref=browse_tab&referral_code=marketplace_top_picks&referral_story_type=top_picks

Good song I heard in a movie with Harry Dean Stanton, "Lucky". Weird movie but he was weird guy in cool way in all his movies.

Valve cover gaskets were never glued from the factory. Still available from Nissan.

Hi Site……If you shave .080 inches from your P90 head, you’ll have to jack up the cam towers .080 inches too. You use the early 280 valves which are approximately .080 inches longer. With this set up, you don’t need the shorter valve seals……they are used when the L24 head uses a cam with .460 or more lift which would squash those seals. If you decide to do that, let me know and I’ll put you in touch with Eiji at Datsun Spirit…..he has everything you need to build that head. He has a ton of Isky Stage III cams also. If you just send him your head, he’ll build you a piece of art. Nice buy for $25.00.

Its a pitty as the car is driveable but has this problem during traffic jams.

He didn't but these guys did.