David GArcia Posted October 3, 2011 Share Posted October 3, 2011 (edited) While your changing the timing belt you might as well should change your water pump. I suggest you also change the thermostat for my thermostat was stuck closed due to the motor not being used for a long time. My Rb would over heat so quickly and i had to take the intake manifold out to service the thermostat. The gasket cost less than 2 dollars at autozone and the thermostat cost 9.99. 1994 300zx twin turbo thermostat 170 degree 1984 300zx n/a thermostat gasket Edited October 3, 2011 by David GArcia Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 3, 2011 Author Share Posted October 3, 2011 I have a water pump already. Forgot to mention that. Thermostat is a good point. For under $15 I might as well. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 5, 2011 Author Share Posted October 5, 2011 Finally got the motor today. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 5, 2011 Author Share Posted October 5, 2011 Guys need a part # for the oil fitter housing gasket. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 6, 2011 Author Share Posted October 6, 2011 Nm did some reading and I found out you can use black rtv. Mini update. Removed intake manifold, clutch, flywheel, oil filter housing, and wiring harness. Ordered new intake manifold gasket. Need a hoist to get the motor on the stand. Quote Link to comment Share on other sites More sharing options...
Bohdan Posted October 7, 2011 Share Posted October 7, 2011 Nm did some reading and I found out you can use black rtv. Mini update. Removed intake manifold, clutch, flywheel, oil filter housing, and wiring harness. Ordered new intake manifold gasket. Need a hoist to get the motor on the stand. Make sure that is the RB25DET transmission, i cant really tell by the picture. There has been many cases where people got ripped off with the RB20 transmission when they bought an RB25 motor. Its way cheaper and weaker. -Bohdan Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted October 7, 2011 Share Posted October 7, 2011 Make sure that is the RB25DET transmission, i cant really tell by the picture. There has been many cases where people got ripped off with the RB20 transmission when they bought an RB25 motor. Its way cheaper and weaker. -Bohdan That's a rb25det trans I see in the pic. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 8, 2011 Author Share Posted October 8, 2011 Update: Dipstick relocation Step 1. Remove the stock oil pan Step 2. Remove brass plug shown here from the other side Step 3. Remove dipstick and swap for brass plug location. Used a punch and a flat head to pound it out. Havent fully pounded it back in. Waiting till I can make sure it lines up with the intake manifold. Step 4. Punch brass plug into former diptick location. More to come. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 13, 2011 Author Share Posted October 13, 2011 update: Oil pan step 1 removed old oil pan. Scraped old gasket off. Did this with the motor right side up at 1st so the old gasket wouldnt fall in. Then flipped it over to make sure it was clean and mount the oil pan. added oil filter here is a few pics of the oil pan I got from Pat1 Used the silicon gasket maker that Pat provided for me. Mounted the pan tightening the bolts in the order the fsm lists and to the torque specs they list. Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 13, 2011 Author Share Posted October 13, 2011 update: thermostat Removed old thermostat. Here it is off. Installed new thermostat Make sure the dot is at 12 Oclock Mounted gasket and put it all back together. Got the thermostat based off of David Garcias advice. Got them from autozone asking for these part #s 1994 300zx twin turbo thermostat 170 degree 1984 300zx n/a thermostat gasket About $15.00 for both Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 13, 2011 Author Share Posted October 13, 2011 Update: Timing belt. Remove everything according to the fsm. The tricky part was getting the crank bolt off. What I did was install some of the flywheel bolts and put a breaker bar in it against the engine stand so it couldnt move. Then took a very large socket and cranked the bolt off. Next up removing the crank pulley. Used a pulley puller that I rented from autozone. Removed the upper and lower timing cover. Then pulled off the water pump. Here it is off. Scrapped off the old gasket. Installed new N1 water pump with gasket maker. Use the fsm to get the order to install the bolts and the torque specs. New pump on. Installed new tensioner pulley. Attatch spring like shown Line up all the dots before mounting the belt. Added the Greddy kevlar timing belt. Another view from the top. Then put it all back together. Got some good info from here. http://www.scribd.com/doc/16408415/How-to-GuideChanging-the-Timing-Belt-on-a-RB25DET Quote Link to comment Share on other sites More sharing options...
Bohdan Posted October 13, 2011 Share Posted October 13, 2011 No offense to you or anything, but it looks like who ever had the motor before you never changed the oil. -Bohdan Quote Link to comment Share on other sites More sharing options...
pat1 Posted October 13, 2011 Share Posted October 13, 2011 Great work,your really moving now. It will be running in no time. I must say that is one great looking oil pan you have there. Quote Link to comment Share on other sites More sharing options...
pat1 Posted October 13, 2011 Share Posted October 13, 2011 (edited) I don't know about you but that looks like every engine I pull the pan off. The engine looks clean to me. Edited October 13, 2011 by pat1 Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 13, 2011 Author Share Posted October 13, 2011 Thanks Pat. Your pan does look amazing. The motor looks fine to me also. Quote Link to comment Share on other sites More sharing options...
Bohdan Posted October 13, 2011 Share Posted October 13, 2011 Just saying. when i look into mine it looks nothing like that. I change my oil every 2k miles or so. Maybe thats why. -Bohdan Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 13, 2011 Author Share Posted October 13, 2011 Bohdan. No offense taken. I can't speak for the old owner but I promise to take good care of her. Quote Link to comment Share on other sites More sharing options...
Bohdan Posted October 19, 2011 Share Posted October 19, 2011 I was also wondering why you put so much dynamat everywhere. Does it really make a big difference? -Bohdan Quote Link to comment Share on other sites More sharing options...
5thgenluder Posted October 19, 2011 Author Share Posted October 19, 2011 I work in the car audio industry. Dynamat is something I have a lot of 1st hand experience with. Yes it does make a difference. I also removed all the factory sound deadening material when I rust encapsulated the floor pans. Quote Link to comment Share on other sites More sharing options...
David GArcia Posted October 19, 2011 Share Posted October 19, 2011 Are you going to stay with the clutch fan setting or will you be running aftermarket electric fans? Quote Link to comment Share on other sites More sharing options...
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