Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 Please post pictures of the wiring you need found a couple more examples in my stash of wiring today. Radio from '82 1 Quote Link to comment
Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 Wires in truck for radio: ?????? 1 Quote Link to comment
Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 So while the manifolds were off I noticed the number three cylinder exhaust port on the head was darker than the others. Looking at the exhaust manifold was the same story, number three had more carbon build up. Look at 3: 1 Quote Link to comment
Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 I ended up finding a tiny rust hole on the EGR tube bung going to this cylinder. I found it by spraying WD in the tube and looking for saturation. I checked them all, only number three had an air leak. 2 Quote Link to comment
Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 Hit it with a wire wheel. Probably shouldn't have and waited until sand blasting, (I pushed the metal in a little with the wheel.) But I wanted to see what I was dealing with under the flake. 2 Quote Link to comment
Gradyfest Posted September 30, 2015 Author Report Share Posted September 30, 2015 Made a stop at my bead blast guy, then my welder. Not a perfect 100% OEM fix, but I'm over it. Fixed! Would it/should it pass Cali smog still??? Find out before to long... 2 Quote Link to comment
Lockleaf Posted September 30, 2015 Report Share Posted September 30, 2015 I imagine California should love what you did. The emissions stuff can now only be removed by cutting, none of that wussy undoing nuts stuff. 1 Quote Link to comment
Charlie69 Posted October 1, 2015 Report Share Posted October 1, 2015 Radio from '82 This out of a 1983 ST King Cab Wires in truck for radio: ?????? Not sure if that is all for the radio. 1 Quote Link to comment
Gradyfest Posted October 3, 2015 Author Report Share Posted October 3, 2015 I'll look real hard again Charlie, but I think that's all there is that's loose that could possibly be for the radio. My thoughts are that since it's a one year engine in the first year 720 (last L Series,) that the radio or harness (whatever I'm missing to connect everything to make it work) is one year as well. So I think I'm missing a one year radio or a one year adapter? The last photo of me holding wires shows the top four wires being blue and grey in pairs. I've traced them to the source and they are the positive and negative wires to the only speakers in the system (the door speakers.) So that is what makes me believe that they are ALL for the radio connection, since they are all the same style plug as the door speakers. 2 Quote Link to comment
Gradyfest Posted October 3, 2015 Author Report Share Posted October 3, 2015 I just want a Datsun OEM radio to play music in my Datsun using OEM connections! Is that to much to ask? Lord knows I'm trying. 2 Quote Link to comment
Charlie69 Posted October 3, 2015 Report Share Posted October 3, 2015 My suggestion is to check the placement color codes of the wires at the plugs on your gauge assembly harness and the harness I have pictured. If they are the same on both ends then the harness I have will possibly work with your 1982 radio. The problem I think you have is the wiring you have is for a completely different radio/cassette player. Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 Well the Datsun is burning coolant. It started to sputter on a drive and after pulling over I seen it was dripping liquid from the tailpipe while shooting white smoke. After it cooled down I checked the coolant level to find it low. I was able to confirm when pulling the number four spark plug to find it wet with the tip eroded in spots and growing white chalk looking stuff in others. Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 The other spark plugs look normal. My first thought is that it is the head gasket. But then I got to thinking about my previous job of replacing the manifold gasket. I remember there were two spots where coolant was allowed into the bottom of the intake manifold. Do you think there's a chance that coolant is getting sucked in through that passageway? Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 Quote Link to comment
Draker Posted November 12, 2015 Report Share Posted November 12, 2015 Probably not, but it's fairly easy to check. Just pop off the intake manifold. Did it ever overheat? 1 Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 It's hard to tell by the pictures, but it's very noticeable to the eye. I suppose I'll have to rent a cylinder pressure tester to rule out the head gasket or not. Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 Being a '80 in California, it has all the EGR and other emissions stuff in the way. Popping off the intake sux! It's a pain in the back. I'm still hoping that my intrusion is there rather than the head gasket though. 1 Quote Link to comment
Draker Posted November 12, 2015 Report Share Posted November 12, 2015 Do a leakdown test and look for bubbles in the radiator. Presumably if water can creep into the cylinder then air can creep into the coolant system. Or just run it and look for bubbles. 1 Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 Probably not, but it's fairly easy to check. Just pop off the intake manifold. Did it ever overheat? It's never over heated. Quote Link to comment
Draker Posted November 12, 2015 Report Share Posted November 12, 2015 Uhhhhhhg... right. EGR. That makes it difficult.. mostly because they are usually seized up pretty good. Quote Link to comment
Draker Posted November 12, 2015 Report Share Posted November 12, 2015 It's never over heated. That's a good thing! If it's a head gasket, you might be able to just buy the gasket, swap it and drive. 1 Quote Link to comment
Gradyfest Posted November 12, 2015 Author Report Share Posted November 12, 2015 I'll test it all later this week and probably just order a head gasket from Nissan tomorrow to have it just in case. I'm thinking and leaning towards it being the head gasket. I'll have to research more on here, but I remember I'll need a wood block for my timing chain of it goes that route. Do they pre-make anything that will work hassle free? Or is making my own out of wood it? 1 Quote Link to comment
fritzdixxon Posted November 12, 2015 Report Share Posted November 12, 2015 Duuude I lost this thread, we haven't had winter show up yet and can still go get you those parts from the wrecker by me if you are interested. 2 Quote Link to comment
bilzbobaggins Posted November 12, 2015 Report Share Posted November 12, 2015 You can order a pre made wedge off amazon for around ten clams. Read this thread all the time. Beautiful truck. Best of luck 1 Quote Link to comment
datzenmike Posted November 12, 2015 Report Share Posted November 12, 2015 Hit it with a wire wheel. Probably shouldn't have and waited until sand blasting, (I pushed the metal in a little with the wheel.) But I wanted to see what I was dealing with under the flake. This isn't the EGR. It's the tube from the exhaust to the intake manifold beside the carb. The EGR injects oxygen free (inert) air into the intake to reduce combustion chamber temperatures. These are the air injection tubes. Air (with oxygen) is pumped into the exhaust to burn off any unburned hydrocarbons.x 2 Quote Link to comment
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