Scgreen620 Posted November 13, 2014 Report Share Posted November 13, 2014 So I have a 620 with a z tranny had a puddle of oil on the ground looked where it was coming from, I look up and the top screw is loose ... My question is would I damage the transmission if I use it for long ? I have no clue on how long it's been ..plz help Quote Link to comment
datzenmike Posted November 13, 2014 Report Share Posted November 13, 2014 Which 'top screw' is loose? A better description or a nice picture would help. Where's the oil coming from? In any case you don't want to run the transmission dry. Fix the 'loose screw' and top up the oil. Quote Link to comment
Scgreen620 Posted November 13, 2014 Author Report Share Posted November 13, 2014 The drivers side closer to the motors head .. That's the bolt that it loose...... The oil is coming from the flyweel and transmission its self ...That's what it appears to be coming from Quote Link to comment
datzenmike Posted November 15, 2014 Report Share Posted November 15, 2014 There are at least 4 bolts holding the transmission to the engine. One loose won't matter.... check the others. Be absolutely sure that the oil isn't leaking down from the back of the valve cover. That would be an easy fix. Just replace the valve cover gasket. Oil dripping from between the engine and the transmission is one of two things. The rear engine crankshaft seal is bad or the front transmission cover plate seal is bad. Either way the transmission or the engine must come out to get at it. If the transmission, it will eventually run dry and be ruined. Check the oil level and top it up. Drive for a week and check it. If down it's likely the transmission leaking. 1 Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 Yes I took it to a transmission shop and the they told me the seals are bad .. But their charging me 1,000 dollars just to change the seals .... Quote Link to comment
datzenmike Posted November 18, 2014 Report Share Posted November 18, 2014 Get your car out of there!!!!!!!!!!!!!! Doesn't cost that much for a $5 seal and some RTV. For $150 you could by a proper jack, a ratchet set, and some spanners and do this yourself. Not rocket science. Just keep filled with oil until you can get some honest person to do it. Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 Believe me I'm new to this but I know it's not 1,000 bucks for that ... I would do it my self but I don't know how to do it.. Is there a place I can order them from? Quote Link to comment
datzenmike Posted November 18, 2014 Report Share Posted November 18, 2014 32114-Y4000 from Nissan about $4-$5 or use this number to cross reference one from any auto parts store. The gasket is probably no longer available so just a smear of RTV sealant will do. Transmission shops are the worst. Just about anywhere else is better. 1 Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 Is it just one gasket that makes all that oil to come out? Quote Link to comment
datzenmike Posted November 18, 2014 Report Share Posted November 18, 2014 Probably the oil seal. Quote Link to comment
flatcat19 Posted November 18, 2014 Report Share Posted November 18, 2014 Make friendly with some Ratsun peeps down there. You could pull the motor/trans in a couple of hours. Fix the 1 or 2 leaks in another. Reinstall in reverse order. Easily done in a day. Or plan it for a weekend. Nothing to it. It's just nuts and bolts. Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 I want to post pics but don't have a laptop it's not easy on the iPad Quote Link to comment
flatcat19 Posted November 18, 2014 Report Share Posted November 18, 2014 Not easy, but doable. Do you have a photobucket account? Snapbucket app loads photos right to your PB library. C/P the IMP code to the reply box here. Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 It says there's no snapbucket app and the photobucket app just freezes...dammit! Quote Link to comment
flatcat19 Posted November 18, 2014 Report Share Posted November 18, 2014 Hooray for apple products. Regardless, it sounds like your engine and transmission need to be separated. Easiest way is to just remove them as a unit. 1 Quote Link to comment
Scgreen620 Posted November 18, 2014 Author Report Share Posted November 18, 2014 Because I'm the kind of person that likes to see how it's done first then I'll do, it is there a link you guys know that I can look into .. I tried you tube but no luck... I know I know it's irritating .. But one day I want to say " yea I pulled out the engine ... It was a bitch but I did it ..I built this truck ......was up!" Lol Quote Link to comment
Nuclear Water Boy Posted November 18, 2014 Report Share Posted November 18, 2014 First determine if it's engine oil or trans lube. The trans lube will be thick and engine oil much thinner. Plus did you recently put oil in the trans? because if you over fill it then oil from the trans will get pushed out of the trans vent tube. Some transmissions have a hose attached to the vent tube running up the trans towards the back of the engine attached to one of the bolts. If it's getting blown out of that tube it sure will look like a rear main seal or a trans front main seal or input shaft bearing cover gasket. Agreeded F'K the trans shop. That fix is simple and not that difficult and it sure beats spending $1k when it'll take you a day and a 6'r. Grab a friend to help you out Meng! Quote Link to comment
Scgreen620 Posted November 19, 2014 Author Report Share Posted November 19, 2014 Yea it sure smelled like trans oil I did recently change it ... I know it's trans fluid because it's goldish not dark like motor oil Quote Link to comment
datzenmike Posted November 19, 2014 Report Share Posted November 19, 2014 How did you fill the transmission ??? Quote Link to comment
Scgreen620 Posted November 20, 2014 Author Report Share Posted November 20, 2014 I followed the DIY on how to fill a transmission from here Quote Link to comment
datzenmike Posted November 20, 2014 Report Share Posted November 20, 2014 There were several ways. Fill till it comes out the fill hole on the side? about 2 liters of oil ????? Some have filled through the shifter and over filled it resulting in just the leak you have described.... Quote Link to comment
Scgreen620 Posted November 21, 2014 Author Report Share Posted November 21, 2014 I raised the car on the driver side.. Unscrewed the fill screw cap... The. Drained filled it with 2 quarts and a half ... Maybe it was that :) Mike you should be the Sherlock Holmes of datsuns ;) Quote Link to comment
datzenmike Posted November 21, 2014 Report Share Posted November 21, 2014 Just remove the filler plug while the vehicle is level. If any oil runs out wait for it to stop and the level is now correct. Put the plug back in. May take a while for the dripping to stop. This is IF it is over filled. Quote Link to comment
wayno Posted January 13, 2015 Report Share Posted January 13, 2015 Well the issue turned out to be this. I don't know if he wanted me to post this, but he sent me a message today with this photo. 1 Quote Link to comment
flatcat19 Posted January 13, 2015 Report Share Posted January 13, 2015 Um...I'd say some stuff is missing. I'm no professional or anything. Wait. Yes I am. That shitz fucked up. 1 Quote Link to comment
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