blacktools Posted July 2, 2008 Share Posted July 2, 2008 Hi guys. I need your experience !:icon4: I went to see a 280zx '79 156k kilos man. n/a the body is clean ,floor is clean ,frame ok. The troubles starts at the engine. the (stup!d omg !) guy putted some boat gaz in the gaz tank (1/2 oil , 1/2 gaz) so now the engine do starts but sounds rough and don't keep a stable rpm. the ''dude'' said the troubles started Before he putted boat gaz in and he also said that a guy said (...) that it was yhe regulator or the gaz pump. SO ! i want to know before i buy the ZX if its just a stupid thing like a regulator and boat gaz (OMG!) or it's something much more bigger like a blown piston . the engine looked realy clean (no not-collected wires etc) and he didn't had sinking oil. I've smelted the oil dip stick and it smelled a liltle bit the gaz without any metal particuls. So ,thanks a lot guy ,i'am a long time fan of nissans but i don't have any experiences:icon11:(i love to trick out some engine so i dont care about swapping parts or little things but it's a another affair if its a piston.. THANKS ' blacktools Quote Link to comment Share on other sites More sharing options...
JMortensen Posted July 3, 2008 Share Posted July 3, 2008 Is this a joke? Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 3, 2008 Author Share Posted July 3, 2008 nope ,not a joke . the owner putted some GAZ BOAT OMG ! in his 280zx... any ideas what could cause the engine troubles appart the BOAT GAZ ! thanks Blacktools Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted July 3, 2008 Share Posted July 3, 2008 by boat gas do you mean 2 stroke mix?? Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 3, 2008 Author Share Posted July 3, 2008 absolutly. 2 stroke boat gaz. 1/2 gaz 1/2 oil:ugg: i saw on the forum it could be a or some rocker arm that could be poped-off, or a ♥♥♥♥3d-up Thermo sensor. what do you thing of that ? Thanks Blacktools Quote Link to comment Share on other sites More sharing options...
naviathan Posted July 3, 2008 Share Posted July 3, 2008 Thankfully I've spent many years studying the Engrish signs found through out the internet and I think I can handle this one... When you buying a auto from peoples this old usually it can't believe what the other person is telling. So we can assist in find this problem we will be need more infos like plugs color, timing, last filters change and things. So please you get some of this infos and we might can help further. Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 3, 2008 Author Share Posted July 3, 2008 okay ,I will give you anything you what...(infos on the ZX) tonight. just for fun how much you would pay for a ZX like the one i look for ? (the guy want 2100$ for it (omg i wont pay that much !!!) i will buy it under 1200$ ...I see you coming 1200$ !!! ya crazy !$&*". I live in canada ,quebec. and prices are very high for cars like that ..82-85 zx are about 7-8k $ in good shape ... Thanks. Blacktools Quote Link to comment Share on other sites More sharing options...
woldson Posted July 3, 2008 Share Posted July 3, 2008 Are you per chance of female persuasion?? Quote Link to comment Share on other sites More sharing options...
MatMan Posted July 4, 2008 Share Posted July 4, 2008 thanks for the chuckles, Naviathan! Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 4, 2008 Author Share Posted July 4, 2008 Lol. anyway, I've bought the ZX.:-D:-D:icon4::-D:-D I take her at home tonight so i will be able to give you guys any infos you need to find the trouble(s). by the way the gaz tank was at the 1/4 when the guy putted some ''boat gaz'' in. Thanks A LOT guys. I send you infos and pics as soon she's in my parking. Blacktools ___________________________________________ if my english is bad correct me please (french=1st language.) Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted July 4, 2008 Share Posted July 4, 2008 If the "boat gas" went in recently enough that theres still some of the gas still in the tank.... well if it's 2 stroke, I'd drain the tank and fill again with normal fuel and use some form of engine cleaner. the North American guys on here seem to like "Sea Foam" but I haven't seen any here in NZ on the store shelves. use that to clean up an baked oil on the heads or cylinders, and generally clean it out. I've topped up the quad bike (honda TRX300 ATV) many times with chainsaw 2 stroked fuel when out of straight gas and still a day or so till a trip to town. even topped up the car to give it enough to reach the nearest fuel station. other than clogging things up and burning smoky, it doesn't generally damage things. 1:1 oil/petrol sounds strong tho, most I've ever used is 10:1 for the old chainsaw, modern oils are often 25 or 50 to one mixes. Quote Link to comment Share on other sites More sharing options...
naviathan Posted July 4, 2008 Share Posted July 4, 2008 thanks for the chuckles, Naviathan! I aim to please. Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 4, 2008 Author Share Posted July 4, 2008 Yhea KIWI, it was on my plans to drain off the tank. like you said,the exhaust gazes are blue (burned oil ) and she sounds i little bit like if she's running on 4-5 cylinder,slow and not stable. so it's maybe not just the boat gaz. I will try your ''Sea foam'' I will also do a oil change because she don't look clean at all. In fact i will change every fluids,sparks (will write you the color naviathan...) spark wires, gaz filter, oil filter. Then we will see.... Thanks ,Blacktools Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 6, 2008 Author Share Posted July 6, 2008 Hey guys THOSE ZX ARE SO NICE ! HOW SOMEONE COULD LIVE WITHOUT THEM ?? ok sorry ,first 280zx... :-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D I did some of my homeworks.But i had to try her too..so i didn't check everything as I must work and sleep....... BUT ! I've looked at the spark plugs and took the compressions. i will do an non-understandable graph for you.. rear of the ZX PSI /how sparks looked 140 / wet carbon+ 140 / dry carbon++ 125 /dry carbon- 145 /wet carbon + 140 /dry carbon ++ 135 / very clean(little dry carbon) front of the ZX I've putted back the old (but hand-cleaned) plugs for the time i purchase some new... After I've did that I've fired off the car. She backfired for about 10 min.(rest of carbon that exits the cylinder?) but after 10 min she wasn't able to keep idle (die) fool and exited as I was I didn't pay attention to the gaz gauge.. I've put some and she started like a brand new. after that she runned much better than before I imagine he don't left any boat gaz in.. but I think she run very rich because she smoke black , she drink A LOT (i've putted around 10 litter and did 24 kilos.(L6 2.8l ) and she don't have many power...I've put full throttle in second at 35 km/h and i wasn't feeling any ''acceleration'' just went to 45 slowly. the wipers and rear defrost dont work,fuses are ok. but i will focus on the engine first. Then When I i go backyard she makes a little sound that grow with speed. like if the driveshaft wasn't centred and scratch the tunnel every turn.she do it a little in third too. Anyway. my next step is the oil/filters(oil air gaz)/spark plugs change. the coil is new and the old owner had change 2 injectors. I will post some pics in the future.She is grey w/ blue interior Thanks a lot for your support guys next update = Aprox. 2 day but i will come read your comment /tips every days. Thanks A LOT again Blacktools ____________________________ '79 280zx man,n/a SO TIGHT ! Quote Link to comment Share on other sites More sharing options...
naviathan Posted July 6, 2008 Share Posted July 6, 2008 Check the transmission fluid. If she sat for a long time the rear seal might have leaked. Might as well change the fluid for something decent while you're under there. Also check the fluid in the rear differential. Get some electrical contact cleaner from the auto parts store and a wire brush. Then, clean all the electrical connections really good. Check the sensors using the tests specified in the factory service manual from here: http://carfiche.com Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 7, 2008 Author Share Posted July 7, 2008 okay. today I don't work ,so I will get my hands dirty. I will look for a electrical contact cleaner as well as a wire brush. I've change the air filter (already had a really bad plastic aftermarket one) for a brand new that looks much less restrictive and cleaner. I've also change my Gaz Filter.then I putted some higher octane gaz in (supreme) She runned a little bit better after that all done. TODAY PLANS: I will change my oil and oil filter ,Spark plugs then some armor all.It's not for the engine but the bumpers are gray...And something to degrease the engine bay because an engine bay is like a mouth,A healthy life start here:icon52: ! ....gonna put some colgate in there ??? Then I will look at her differential and tranie.My father thinks it's a clutch bearing...Anyway,changing fluids can only help her ! Ha ,and the handbrake don,t work.the caliper's pistons jam(get stuck) but the wires are new.but my ''foot'' brakes work really good. Thanks a lot for your tips. Blacktools ________________________________________ Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 7, 2008 Author Share Posted July 7, 2008 AND ,I'm just thinking about a little detail. She's in my parking for 3 days now. My parking is not flat ,maybe 15 % Should I but her nose or her back on the lowest part ? ____.....:::::::''''''''IIIIIIIIIIII _________...::::'''IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII It is supposed to represent my parking....sry lol Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 7, 2008 Author Share Posted July 7, 2008 about 3 hours later.... Hey ! I did my oil change+oil filter (mobil 2000) I did change my spark plugs (NGK Vpower) Putted some Pennzoil engine block+oil pan cleaner (put it in the oil 10 min before oil change) and finnaly putted some Pennzoil Fuel systeme cleaner. My Diff. leak. My oil pan leak. My exhaust is very very rusted He leak just before the Cat too. QUESTION HERE. If my car smokes black ,is it caused by a bad timing ? I will go for a Timing check anyway when i will have time (and money crap brought the car and spend 83$ of little product in one shot,and fuel/air filters ! ! that without the 100$ of gaz in 2 days.....) Anyway...money must goes somewhere.. Thanks any comments/tips would be aprreciated. Blacktools _______________________________________ 280zx n/a 5 spd Quote Link to comment Share on other sites More sharing options...
blacktools Posted July 9, 2008 Author Share Posted July 9, 2008 yesterday I've changed the valve cover gasket. the new one is a KP one. made in japan. cost me 35$. Next step will be a new fuel regulator and timing. I found 5 not-conected wire near the coil.It surly don't help my cause. I will try to find a wiring diagram.(sugestions??) She run much better now with all I did. but she still fumes black/blue. Quote Link to comment Share on other sites More sharing options...
naviathan Posted July 9, 2008 Share Posted July 9, 2008 http://carfiche.com Check the service manuals Quote Link to comment Share on other sites More sharing options...
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