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1975 280z Build
I have been using that bosch relay in the photo since 2012 and no issues. Plugged in a go. The bosch relay was used in the first 280Z in 1974. Datsun used a Bosch L-Jetronic system for the first 6 months of the 280Z production And Hitachi copied it. That is why a lot of Bosch parts will work on these efi systems. I think @Mike had a bosch system in his attic once. I posted an ebay link back in 2018 and it still worksπ https://www.ebay.com/p/77006951
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1975 280z Build
Not sure that relay has the same function. It might need some wiring changes to get it to work. The correct bosch relay is 0332 514 120. Bosch have several variants for the VW's
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1975 280z Build
The original pump includes an inlet strainer, but I donβt think the OβReillyβs E16078 has one. In principle itβs the same style as the Bosch 0580 254 044 that replaced the factory unit. If you want to add a pre-filter, you can install two 5/16" filters in parallel to avoid fuel starvation and prevent cavitation in the pump. Their only purpose is to protect the pump, the filter up front will protect the injectors. 280 Series Fuel pump Alternatives Rev 1.pdf
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A better Auxilary Air Regulator
If someone is looking for an original Bosch version of the 280Z auxilary air valve here is one in NOS condition. Its for a 1976 Porsche 924, but it's a very similar system. Marktplaatsβ₯ Lucht by-pass regelaar Porsche 924 ('76-'88) β Motor en...Lucht by-pass regelaar Porsche 924 ('76-'88)Lucht by-pass regelaar Porsche 924-Porsche 924, 2.0liter-Voor koude start regeling (lucht)-Bosch-Getest en
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Making an inspection light lens
Hi Mike, Just back from a holiday in Spain. I have plenty of photo's and I believe I have a video of it bubbling to remove air. Ill see what I can find and post them.
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Diesel crank
That would bd a good find. Don't see any photos of the engine so I'm wondering: Does it still have the engine???
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Rebuilding an AC System
I like the Sanden compressor in their kit. It looks visually close to the original Hitachi compressor. The mounting bracket though looks big and cumbersome compared to my original hitachi bracket. If you are spending all the money on the kit for the engine bay, then I would also go the extra for a new evapourator.
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4/75 Datsun 280Z; Leaf Green, CA market, 250K miles, Long Term Project 03/2023-
Do you have the Apex-Engineered front subframe or have I missed it? With the subframe you could reverse engineer it to work out what you need.
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1970 Wiring Diagram
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1970 Wiring Diagram
Evreything I find on the internet (ignoring the BS E-bay ads quoting antenna switches to suit datsun 240z to 280zx) seems to point to that type. The wiring diagram is based on the two diagrams in the Xenon website 1971 240z FSM supplement In the detail Pos 14 & 15 seem to match.
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1970 Wiring Diagram
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1970 Wiring Diagram
Hi Captain, You have an good eye for detail.π I'm not sue if the Map light uses a bullet connector of spade for the power supply? The blower is in the cabin and I think the Cooler is the engine fan maybe? , but I must admit I have never seen an original 240Z with original air-con fitted --> Thr blue branch off wire. The was from a source file I used from XenonZcar 9 years back.
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75 280Z - 5 speed swap from 81 280ZX - any catches I should be aware of?
I read the Subaru drive shaft uni-joints were the best replacement for the 280Z and came with inner circlips. Rockford u-joint replacement kit 430-10 "Staked in" replacement. I can't confirm fitment.
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1970 Wiring Diagram
I made a low res print in pdf of this last update Rev1.1 The radio connector is not right. It should be 4 pole. See screen shot of the supplement. Connector Pos:13. I think the speaker wires come from pos 13? ColorWiring240Z1971Early_TerminalBlockExample09-aug-2015 Rev1.1.pdf
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1970 Wiring Diagram
Ill make a list of things I miss. If anyone has parts handy and can take a photo or even out of memory would be a great help. Please don't hesitate to make or suggest any corrections. Like I mentioned, I don't own a 240Z to fact check any of this.