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My new 521


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#341 wayno

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Posted 06 January 2017 - 11:25 AM

That is/was "Uncle lau lau's" truck, I have not been by that house in over a year now, don't know if he lives there anymore.


 

 

 


#342 Datsunthug

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Posted 06 January 2017 - 08:00 PM

Pulled the truck in the garage. More like pushed it in cause we're leaving for Disney land tomorrow. Plan on draining the tank getting a fresh filter and checking the filler tube. Going to run compressed air back to the tank.
Should I worry about the carb or just drain it and shoot it with carb cleaner?

#343 Datsunthug

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Posted 11 January 2017 - 12:07 PM

Drained the tank today. About 4 gallons came out, about 1 ga. was water. Blew air back to the tank and drained the carb bowl. Sprayed the carb with carb cleaner to help evaporate any water inside the carb. Need to pick up a fuel filter and fresh gas and I can give the brakes a proper test drive finally. Still need to find the source of the leak but, for now it's covered in the garage and dry.

#344 Datsunthug

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Posted 15 January 2017 - 09:00 AM

Got it back up and running. Brakes feel good. Maybe a little more adjustment and bleeding.
Seems if I pump the brakes they get firm at a higher pedal height. If I'm cruising the first time I hit the brakes they go down a bit further

#345 flatcat19

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Posted 15 January 2017 - 09:29 AM

If you get a firm pedal first pump, it's just low-keep adjusting.

If you have to pump pedal to get a firm feel, you have a leak.

You can't hang if your nuts haven't dropped...it's physics


#346 DanielC

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Posted 15 January 2017 - 09:34 AM

"Seems if I pump the brakes they get firm at a higher pedal height. If I'm cruising the first time I hit the brakes they go down a bit further."

 

This is a very common problem with 521 trucks.  The wheel cylinders have only one port for fluid and air to go in and out of.  You have to allow the brake shoes, and springs to collapse the wheel cylinders, and push any air in the cylinder back out to the bleeder valve.  If you use a pressure or a vacuum bleeder, the exchange of fluid for air never happens in the wheel cylinders. 

 

Bleed the brakes manually, with two people.  The person under the truck has to open the bleeder, when the brakes are applied, and the pedal has to go all the way to the floor, and held there.  With the pedal on the floor, the person under the truck has to wait until all fluid (and air) flow stops.  Then close the bleeder.  Then the pedal can be let up, slowly, and pushed again.  Three full pumps, and refill the master cylinder.



#347 Datsunthug

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Posted 15 January 2017 - 09:58 AM

I'll try bleeding them as you describe danielc

#348 Datsunthug

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Posted 19 January 2017 - 05:12 PM

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8EF99174-F7EF-4E0E-944D-1FA6326B685E_zps
This screw was just sitting there not threaded. Too small a screw and probably why I was getting water in the tank
I can't seem to find a sending unit o ring anywhere in town. If I understand it correctly it should be a 2.75 inch o.d o ring. A service manual shows what looks like a flat type gasket on a 521 and a o ring type on a 620. i guess I'll pull it out and see exactly what size type it is. I'll need to find a larger screw that will actually tighten and seal too

#349 Datsunthug

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Posted 19 January 2017 - 05:44 PM

ADE39E35-D431-4529-903E-DFBCC0D472CB_zps
The o ring looked fine. I think the leak was the janky screw
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The sending unit looked good too

#350 Datsunthug

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Posted 06 February 2017 - 07:31 PM

My wiper blades sucked ass so I trimmed down a 20inch set I had. 4D8C6B9F-913C-4B3C-96B7-3BBC489407C8_zps
Took the new blades apart and used just the rubber. 0BD106C0-8C4D-4C8D-BEA5-EE7989D19DB9_zps
Saved the metal strips from the old blade so it would line up with the old arm. 1B99EBFC-84EE-4E38-82BC-D8C99657EF7A_zps
Just trimmed it to fit and slid them in.067E60DC-A761-4EC3-998B-91897493F270_zps
I used needle nose vise grips to squeeze the metal past the prong to get it out.
Now I can drive in the rain and only deal with my bad windshield!!

#351 MYDAILYROUTINE

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Posted 06 February 2017 - 08:43 PM

Great score! Congrats. Looks so clean.
R.I.P Dave Pare...

#352 Datsunthug

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Posted 13 February 2017 - 11:10 AM

My wipers flop all over the place. Way too much play in the mechanism.....I can move them about half way before they actually "catch". Mostly the drivers side wiper. I'm going to need to take it apart and see if there is a bad bushing or something that is giveing it the extra play. Maybe because the motor is on the passenger side the rod being longer might give it more slop?
Anyone rebuild theirs recently that has any advice

#353 banzai510(hainz)

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Posted 13 February 2017 - 02:13 PM

I jusr get new wiper with the blades from Rockauto. the bosch Belguim made ones were the best -16in


Throw on some Weber sidedrafts, Rising Sun hood.... call it good

#354 Datsunthug

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Posted 13 February 2017 - 02:22 PM

My blades are good just swapped them out. I think the arm mechanism is jacked up somewhat. Drivers side will wipe past the windshield on to the A- pillar. Both arms move at a wonky drunken unison. It's like watching kid's on Ritalin trying to synchronize swim.

#355 Datsunthug

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Posted 06 April 2017 - 10:25 AM

Went to the junkyard looking for suitable weather striping for the doors but wasn't lucky. Been driving it every day it hasn't been raining. I finally put a timing light on it, was off a little. I tuned it by ear a couple degrees advanced, but it starts better now. Need to fix the stumble off idle, but the bitch runs strong.

#356 Datsunthug

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Posted 11 April 2017 - 06:14 PM

The guy who gave me my truck has a box of parts to give me. He was cleaning out his garage and found some new points, gaskets, plugs, wires and a cylinder head he said was "the high performance one" whatever that means. Hope it's a 219 casting...... probably not maybe a 58 or 67?

#357 Datsunthug

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Posted 21 June 2017 - 06:17 AM

How's it been guys. Haven't been on here in a while, so I come bearing questions? What size are the bolts that mount the alternator bracket on. Coming home from work last night I must've vibrated the bolts loose I am Magine I lost one previously and the second one finally fell out last night. And going to pick up some bolts today on my lunch break in some medium thread locker

#358 d.p

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Posted 21 June 2017 - 08:04 AM

Had the same problem with mine and they are M8-1.25. 



#359 Stoffregen Motorsports

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Posted 21 June 2017 - 08:37 AM

That's pretty common. Use loctite on them when you install the new ones.

 

I have a trick that solves this issue. If you have the cast iron bracket, using a 3/8" drill bit, drill out the length of the bracket to be able to use one long bolt with a nut on the other side. Use an old head bolt (or whatever) and you'll never have that bolt come loose or break ever again. You will have to drill the alternator to 3/8 also.



#360 Datsunthug

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Posted 21 June 2017 - 10:05 AM

I have the stamped steel bracket. Going to pick up some bolts in a few. I probably have some on the other two motors in my garage but need locktite anyways so I'll pick up some bolts too.