Posted December 9, 20186 yr comment_563371 I am trying to find a good replacement for the gas tank drank plug and washer. Does anyone know where to get them? My washer is disintegrated and the bolt has a slow leak and I am not even sure it’s the correct plug. Sent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/ Share on other sites More sharing options...
December 9, 20186 yr comment_563372 Pretty pretty pretty sure that somebody out there knows the thread pitch and size but here's a link to the Nissan part numbers. They call it a plug and packing. Talk about translation problems. http://www.carpartsmanual.com/datsuns30/Datsun-Z-Index/Engine-280Z/Fuel-Tank/From-Jul-76 Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563372 Share on other sites More sharing options...
December 9, 20186 yr comment_563373 BIG EDIT Sorry about this but the 1/2"x20 is completely wrong, You are looking for an M8x1.25 bolt. I was looking through my notes and 1/2"x20 is what I have there but that must be for something else, I just went out to the storage shed to dig out the gas tank. A 1977 280z gas tank has M8x1.25 drain bolt. Note to self, re check my notes Edited December 9, 20186 yr by grannyknot Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563373 Share on other sites More sharing options...
December 9, 20186 yr comment_563378 I also found it to be a standard thread and not metric. I found that odd but didn't fight it. Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563378 Share on other sites More sharing options...
December 9, 20186 yr comment_563379 5 minutes ago, Patcon said: I also found it to be a standard thread and not metric. I found that odd but didn't fight it. Actually, I'm still trying to find mine, I removed it when I was restoring the tank and put it somewhere safe, so safe it still hasn't shown up, I may have to make one. Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563379 Share on other sites More sharing options...
December 9, 20186 yr comment_563380 6 minutes ago, grannyknot said: Actually, I'm still trying to find mine, I removed it when I was restoring the tank and put it somewhere safe, so safe it still hasn't shown up, I may have to make one. Don't you hate it when you do that! I have a roll pin I took out of something. Put it in a conspicuous place in the shop so I wouldn't lose it. I still have it, but I forgot what it came out of.... Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563380 Share on other sites More sharing options...
December 9, 20186 yr Author comment_563384 Well the plug is still available but it looks like but the “packing” is NLA. what should I use to replace the washer? (Correction both are NLA) Sent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563384 Share on other sites More sharing options...
December 9, 20186 yr Author comment_563388 Well this is interesting https://parts.nissanusa.com/nissanparts/index.cfm?action=replacement&siteid=14&jointvehid=18157&groupid=B§ionid=172&partcode=17201ASent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563388 Share on other sites More sharing options...
December 9, 20186 yr comment_563389 Well, if the 1/2 x 20 is correct, this would probably work: https://www.amazon.com/Needa-Parts-652036-Drain-Plug/dp/B000CHL58M Or this: https://www.summitracing.com/parts/sdk-d1az-6730-a/overview/ Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563389 Share on other sites More sharing options...
December 9, 20186 yr Author comment_563390 The part 01125-00062 is also on the 1985 200sx and the “packing” and both are still available. Going to order today and see what I get Sent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563390 Share on other sites More sharing options...
December 9, 20186 yr comment_563391 33 minutes ago, ryanotown22 said: Well the plug is still available but it looks like but the “packing” is NLA. what should I use to replace the washer? (Correction both are NLA Sent from my iPhone using Classic Zcar Club mobile @ryanotown22, my apologies, see post #3. Forget the 1/2"x20 that is completely wrong, my notes are wrong. The drainage bolt you are looking for is a M8x1.25, I just checked my gas tank and it is M8x1.25, what a twit. The problem with a standard M8x1.25 is the bottom of the head isn't really flat and there is not much of it to get a crush washer to do its job. The original drain bolt had a larger head with a machined flat bottom for a good seal. The "packing" is the copper or aluminum crush washer. Edited December 9, 20186 yr by grannyknot Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563391 Share on other sites More sharing options...
December 9, 20186 yr Author comment_563393 Ok thanks if the parts I just ordered don’t fit I will just pick that up. Btw my order total price came to 2.18 for the plug and washer from Nissan with local pickup Sent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/forums/topic/61222-78-280z-fuel-tank-drain-plug/#findComment-563393 Share on other sites More sharing options...
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