280Dan Posted July 17, 2023 Author Report Share Posted July 17, 2023 Some people have mentioned offsetting the fan to the drivers side and it should clear so I’ll check tonight. I’m sure cooler heads will prevail as I was already very irritated from working in the heat/humidity all day by that point Quote Link to comment
Crashtd420 Posted July 17, 2023 Report Share Posted July 17, 2023 31 minutes ago, 280Dan said: Some people have mentioned offsetting the fan to the drivers side and it should clear so I’ll check tonight. I’m sure cooler heads will prevail as I was already very irritated from working in the heat/humidity all day by that point On my 521 I used 2 different size fans... originally I had 2 the same size but I was able to go a little bigger on one side since the motor is tilted... my guess it's the 3 row vs 2 row just takes up a little more room.... I'd put the radiator in place and see what you have for room... you could use cardboard to see... cut a piece the size of the radiator core where the fans would go... then trace the water pump onto it then you can figure out where the fans can live. 1 Quote Link to comment
280Dan Posted July 18, 2023 Author Report Share Posted July 18, 2023 Okay we’re back in business gentleman! Ended up installing the fan as a pusher. I didn’t feel comfortable with how close it was offset and I wasn’t about to cut in my new fan to make it fit 3 1 Quote Link to comment
280Dan Posted July 19, 2023 Author Report Share Posted July 19, 2023 Took it for a drive today. Did a little stop and go and some nice pulls. Then a steady 60 for about 5miles, stopped and let it idle for a few minutes and the temp would creep up to about 3/4. Drove home and checked the temp after turning it off for a couple and the gauge was nearly maxed. It’s definitely getting hot if I’m not moving Quote Link to comment
datzenmike Posted July 19, 2023 Report Share Posted July 19, 2023 Well within the limits. Running a little low. Should drive about half way on that 'run range' area. I would guess it peaks at about 190-195F. You could check by 'shooting' the thermostat housing with an IR gun. 1 Quote Link to comment
Crashtd420 Posted July 19, 2023 Report Share Posted July 19, 2023 One question about the fan.... If it was a pulling fan what was done to make it a pusher other than putting it in front? Quote Link to comment
280Dan Posted July 19, 2023 Author Report Share Posted July 19, 2023 Swapped the wires at the fan. Tested it with a little 9V beforehand to confirm 1 Quote Link to comment
Crashtd420 Posted July 19, 2023 Report Share Posted July 19, 2023 22 minutes ago, 280Dan said: Swapped the wires at the fan. Tested it with a little 9V beforehand to confirm Just making sure.... What about the fan blades? Would they need to be flipped around too? Just wondering about the angle of the blade..... Quote Link to comment
iceman510 Posted July 19, 2023 Report Share Posted July 19, 2023 1 hour ago, Crashtd420 said: Just making sure.... What about the fan blades? Would they need to be flipped around too? Just wondering about the angle of the blade..... Legitimate question. Fan may not be efficient as a pusher instead of puller if not designed to run that way. 1 Quote Link to comment
280Dan Posted July 19, 2023 Author Report Share Posted July 19, 2023 2 hours ago, Crashtd420 said: Just making sure.... What about the fan blades? Would they need to be flipped around too? Just wondering about the angle of the blade..... Nope just need to swap wires 1 Quote Link to comment
280Dan Posted July 19, 2023 Author Report Share Posted July 19, 2023 34 minutes ago, iceman510 said: Legitimate question. Fan may not be efficient as a pusher instead of puller if not designed to run that way. So far I don’t think it cools as well as the clutch fan did in stop and go driving but this setup I’m running is only temporary till I do the engine swap so it’ll work for now. If I was keeping this engine in it I’d probably do what other have and switch out the single 14” for a dual puller setup with smaller fans. 1 Quote Link to comment
Stoffregen Motorsports Posted July 19, 2023 Report Share Posted July 19, 2023 Many electric fans are far less powerful when pushing air. Some of this has to do with fan blade design, but it also has to do with the act of gathering the air. A puller fan has a short built in shroud that helps gather and focus the air. When you turn that fan around and start pushing with it, the shroud is useless. 1 Quote Link to comment
280Dan Posted July 19, 2023 Author Report Share Posted July 19, 2023 (edited) Took some pictures while out with it last night Little Walk around video Edited July 19, 2023 by 280Dan 3 Quote Link to comment
datzenmike Posted July 19, 2023 Report Share Posted July 19, 2023 2 hours ago, Crashtd420 said: Just making sure.... What about the fan blades? Would they need to be flipped around too? Just wondering about the angle of the blade..... No need to. The motor runs in reverse now. Best if the blades are symmetrical. Best shrouds are fans that are joined to a hoop around the perimeter. When the blade tries to move air there is a high pressure and low pressure side. The high pressure side will try to slip around the tip to equalize the low pressure. It's why planes have winglets on the ends of the wings. 1 Quote Link to comment
280Dan Posted August 1, 2023 Author Report Share Posted August 1, 2023 So while I’ve been waiting to start the swap I wanted to pull the bench seat out to test fit the bucket seats and center console. Well I definitely need new cab bushings as well as some metal repair around the passenger side cab bushing bolt hole. Also sound some swiss cheese at the rear of the passenger side of the cab. I’m a bit afraid to pull the sound deadening material up although I don’t recall seeing any hole in the floor pans from under the truck Quote Link to comment
280Dan Posted August 2, 2023 Author Report Share Posted August 2, 2023 Not the worst I’ve seen Quote Link to comment
280Dan Posted August 2, 2023 Author Report Share Posted August 2, 2023 Test fitting the seats and console in. The seats fit nice except for height I’m going to need to modify the brackets, maybe remove the cross member the bench bolts to, otherwise I’m happy with them. The center console couldn’t fit any better I’m super happy I’ll have a nice console now 2 Quote Link to comment
Rustbin Posted August 2, 2023 Report Share Posted August 2, 2023 I think I've seen worse rusty floors, poke the underside with an awl to find any week rusty spots where the sound deadening stuff is and that console looks really nice. It looks like you'll need to remove the armrest from the seat back, it may require removing the cover to get access. Hog rings and hog ring pliers may be needed. Sometimes you can glue a piece of fabric to the inside of the hole that's left to hide it. If your lucky there may be some spacers between the seat and the rails to lower it other wise the mounting points will need modification. I have often found the rear mount needed to be shortened more than the front for comfort. Nice build, it's looking great. 1 Quote Link to comment
shlammed Posted August 2, 2023 Report Share Posted August 2, 2023 Those seats look like they sit fairly high in the photos. Lower those down too? Quote Link to comment
280Dan Posted August 2, 2023 Author Report Share Posted August 2, 2023 8 hours ago, Rustbin said: I think I've seen worse rusty floors, poke the underside with an awl to find any week rusty spots where the sound deadening stuff is and that console looks really nice. It looks like you'll need to remove the armrest from the seat back, it may require removing the cover to get access. Hog rings and hog ring pliers may be needed. Sometimes you can glue a piece of fabric to the inside of the hole that's left to hide it. If your lucky there may be some spacers between the seat and the rails to lower it other wise the mounting points will need modification. I have often found the rear mount needed to be shortened more than the front for comfort. Nice build, it's looking great. Yeah my Z floor pans and frame rails were nearly non existent at a point. The arm rest will most likely be getting removed too 37 minutes ago, shlammed said: Those seats look like they sit fairly high in the photos. Lower those down too? They are sitting high so I plan on modifying the mounts to get them to sit lower 1 Quote Link to comment
Stoffregen Motorsports Posted August 2, 2023 Report Share Posted August 2, 2023 Bummer on the rot. Hopefully it can be repaired without disturbing the exterior paint. Quote Link to comment
280Dan Posted August 5, 2023 Author Report Share Posted August 5, 2023 So out of curiosity I decided to check and adjust the valve clearance and was hoping to find an obvious cause for the backfire. Only had a few exhaust valves slightly tight and a few intake slightly loose. Adjusted them to spec and still having the backfire through the carb under acceleration 1 Quote Link to comment
datzenmike Posted August 5, 2023 Report Share Posted August 5, 2023 Setting the lash is something anything can do for free. Still backfiring could be a worn or damaged valve/seat. Try a compression test for a weak cylinder. Damaged cap and/or rotor or old plug wires with poor resistance. Partly blocked secondary jet if this happens only when the secondary is open. Quote Link to comment
jagman Posted August 5, 2023 Report Share Posted August 5, 2023 While you are at it recheck your timing. My Z24 was doing that and I found out that my timing was advanced 20 degrees. Quote Link to comment
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