machowgn

hey all. I hope someone can help me out here, I have a 74 620 pickup, l-18 engine. the truck only has 67k on it. today I drove the truck home, and when I pulled into the drive way, I noticed smoke from under the hood, I shut off the motor, and raised the hood, On the passenger side fenderwell I found a relay with a wire going to the voltage regulator, or resistor. One wire was completely burned up. The relay has 4 wires. I tried to start the truck, but right when it begins to fire it dies. I checked for gas, spark, starter. Both Datsun service books I have don't even show this relay in the electrical,or charging, or starting systems of the truck? Can anyone tell me about this relay? what is it's function, where can I get one? My local parts store doesn't even list it? thanks, machowgn.

hello, did you ever get the tach working? I might be interested.machowgn.

Ok I hope someone here might have some info on this: I have a 74 620 pickup with a dealer installed 4x4 conversion, jeep running gear I was told. the motor is an L-18, only 67k on it, just adjusted the valves and added a matchbox dizzy, webber 32/36. I now need to go thru the brakes. the truck has a small brake booster, drum brakes all around, open knuckle front end. i was thinking of adding discs up front, or just going thru the original, does anybody have any info on these conversions? I believe the front is a dana 30 with a twin stick dana 20 transfer case, not sure about the rear end? any help would be great, machowgn.

Thanks for all the tips, heres is what I found: I used a new msd blaster 2 coil new 7mm plug wires, new plugs, gapped at.041" I bought a " new " suppoedly matchbox type dizzy. I installed the dist, with # 1 cylinder at 0 on the crank mark, compression stroke, # 2 cam lobe striaght up. fired up the motor, tried to adjust the timing 12-15 deg. advanced, once the motor was warmed up started to miss, no matter where I put the dist. I even tried loosening the 8 mill. bolt for for more advance, still no good. I scoped the motor, found at Idle the rpm's read around 4000? I then tookoff the dist cap and inspected the shaft for end play, and sure enough, it moved around pretty good, Now I compared that dist. with a spare dizzy I purchased from frank, thanks again! also with the the help of Heinze over the phone I was able to track this down. I did do one other check. With the motor running I pulled off plug wires, one at a time, now I had done a compression check of this L-18 beforehand, and it has only has 67k on it, not bad for a 74 4x4 conversion truck! 180 psi thru all cylinders! When I removed the plug wires from cylinders # 1 & # 4 hardly no change in idle, the other two made significant changes in the rpm's. Now I think I can probably look into valve backlash when the engine is cold in the morning I'll adjust them and see what happens, anybody have any thouhgts on this? thanks.

I have several 521 pickups, and a few 620's I have found on E-bay in parts for cars & trucks in the datsun section rear wheel cylinders, shoes, drums & adjusters to the cyliders, check it out.

Hello, Mike here in san jose, I have a 72 521 pickup. can you send me pictures of your webber for sale? my e-mail is d521king@yahoo.com thanks.

Hello All, I recently installed a dizzy in my 74 620 pickup truck, thanks for all the help from heinz & frank and everyone else on the correct way to install the dist, However here is the latest issue, everything is great untill the L-18 warms up then it pops like it's missing? any suggestions? also i have a question about the water line comming off the lower radiator hose/heater hose that routes itself to the intake manifold? would that cause any problems? if it was leaking internally? I don't belive mine is but just curious what that does? thanks, Machowgn.

Does your webber have the adapter for the L-series motors? thanks.

Still for sale? Mike (408) 221-9550

I sent you a few replies about your tach? is it still for sale? (408) 221-9550 or D521king@yahoo.com thanks.

Hello, this dash looks correct, it's missing the cigarette lighter, and has a manual choke lever. the light switch is located under the wiper switch. I have several of these trucks, as well as a few 620"s, Machowgn.

Hello, how much for your best 620 hood? thanks, machowgn.

Hello, Mike here in california. how much for your best 521 hood? I'm looking to get a good one. (408) 221-9550 or E-mail d521king@yahoo.com thanks.

hello, Mike here in california, I think I might have a spare, call me at (408) 221-9550 .

hello, is your tach still for sale? (408) 221-9550 Mike or E-mail is d521king&yahoo.com thanks.