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About DanielC

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    Senior Member
  • Birthday 09/01/1954

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  • Location
    West Linn,Or
  • Cars
    521's Ford Aerostar
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  1. DanielC

    L16 big bore

    You can put a L-18 crankshaft in an L-16. Stroking an engine will add more "grunt" to an engine than the same displacement increase by boring the engine, The L-18 engine will also bolt right in the car. If you can get a L-20-B engine, put that in the car. There are minor fit issues with a L-20-B, because the block is taller, about 3/4 of an inch, or 19 MM. Because the block is taller on a L-20-B, even if you use the same exhaust manifold that came off the L-16, that will move the front of the exhaust pipe closer to the the floor of the car.
  2. DanielC

    L Series Oil Stick Calibration

    I put 4 1/2 quarts in a L-20-B. My experience with four cylinder L-engines is if the oil level is slightly too low, when the engine is cold, and cornering, the oil pressure will drop, because the oil pick up can draw in air. All your steps to "calibrate" the dipstick are pretty much meaningless in my opinion. The important factor is that the oil pick up does not get uncovered in operation of the engine, when accelerating, or slowing down, or cornering. You want to maintain oil pressure when the car is running. Most likely, the oil level will be the lowest when the engine is cool, or cold because the thicker oil takes longer to run back down into the oil pan. You need a way to monitor oil pressure when the engine is running. You car may have an oil pressure gauge, but you need a gauge that responds as fast as the tachometer does, because that is how fast the oil pressure changes with engine RPM. If you want to know the oil pick up has sucked some air, you need a fast gauge response. Most oil pressure gauges are damped to NOT respond quickly, because too many people think oil pressure should remain constant, and a lower oil pressure at idle with a hot engine causes people to unnecessarily worry. I would put 5 quarts in the car, with a new (Nissan) oil filter. Start the car, and drive it, closely watching the oil pressure. If the oil pressure drops when cornering, or accelerating, or braking, add a half quart more. Drive the car again, and see if the oil pressure remains steady. If it does, that is your low oil mark. Too much oil will also cause air in the oil pump. if the oil level is too high, the crankshaft will hit the oil, and whip air into the oil. this air may also get to the oil pick up.
  3. DanielC

    Airplane Porn (and the occasional helicopter)

    Definitely not sarcasm.
  4. DanielC

    Airplane Porn (and the occasional helicopter)

    "Thanks for telling us dummies what we are looking at! " AMEN!, brother.
  5. DanielC

    A 521 in Massachusetts

    I think I am running a used Nissan distributor cap from a junkyard. But I have that "west coast advantage"
  6. DanielC

    Restoration 72 521

    The spot welds are where ever the person spot welding the panel on at the factory in the first place put them. My personal opinion is that when Nissan was training new workers to spot weld, they were first allowed to work on 521 trucks, then 510 wagons, and when they were really good, they worked on the 240Z. Sanding the paint and primer off the flanges where the spot welds are will reveal them. However, if the panel has been replaced in the past, it may have been brazed on, with brass filler.
  7. DanielC

    L18 vs L20B iron cast header

    Based on my experience with trucks, L-16, L-18 headers and down pipes go back at an angle, L-20-B headers go more straight down, below the oil pan, then turn 90 degrees straight back
  8. DanielC

    Help with timing issues on L20b with wrong indicator....

    You can actually feel TDC on a four cylinder in line engine, since at TDC, two pistons are at TDC, and the other two pistons are at BDC. Right at TDC, the crankshaft pulley will turn easier, because for about 1 to 3 degrees of crankshaft rotation, the pistons do not move, especially the two at BDC.
  9. DanielC

    Help with timing issues on L20b with wrong indicator....

    I think if you can locate a junkyard L-20-B, or a member with a spare sawtooth timing indicator, you can remove two bolts on the front cam chain cover, and put the sawtooth indicator on your engine. One way to check the timing is just to advance the timing until the engine knocks, and then retard the timing a few degrees. The stock L-16 timing pointer extended straight away from the timing cover, at 90 degrees. Yours is bent up a bit.
  10. DanielC

    A 521 in Massachusetts

    I have been tracking the gas mileage on Ratsun since I put the L-20-B engine in it. 22.79, 24.72, 21.93, three fill ups. This is with not a lot of freeway driving, getting a load of hay about one a week, and coasting in neutral, engine off, on a part of a road on my way to work. I am using the stock L-16 Hitachi carb with a manual choke on the L-20-B engine. Typical load of hay. Also got a ton of wood pellets on one of those tanks of gasoline.
  11. DanielC

    DIY welding

    Good advise here. If you want to learn to weld, sure some you tube videos help, but a term or more at a local community college is very valuable. Community college classes will also expose you to different welding machines, and processes, and that knowledge is very helpful when it comes to buying a welding machine. If you do decide to buy a welding machine, the community college class may also enable you to get a discount at a local welding store, partially or even fully offsetting the cost of the class tuition.
  12. DanielC

    Choosing oil for cold season ( high miler L series)??

    A Datsun L-16, L-18, or L-20-B does not have hydraulic lifters. They are adjustable, and must be adjusted for the correct clearance between the heel (low side) of the camshaft lobe, and the pad on the rocker arm, .010 intake, .012 Exhaust, with the engine hot. Oil pressure does not change valve clearance. The cam chain tensioner is spring loaded, with an oil pressure assist. That is the initial noise you hear when first starting the engine. According to the factory service manual, a 30 weight oil is good from 32 degrees F to about 90 degrees F. The service recommends a 5W-30 oil below a high temperature of 25 degrees F AND COLDER. In other words, where Datzenmike lives, A 5W-30 oil is still too thin. If you do not know where DatzenMike lives, he is on Vancouver Island, in Canada. I use 30 weight Valvoline VR-1 racing oil in my Datsuns. Old engines need old engine oils, with a high level of ZDDP, an anti scuff additive in them.
  13. DanielC

    Engine dieselling ??

    Turn the idle speed down a little.
  14. DanielC

    rust treatment before paint

    You cannot convert rust to zinc. Rust is a compound of the chemical elements iron, and oxygen, zinc is another chemical element. Rust converters typically contain phosphoric acid, and can convert the top most layer of rust to a compound of iron, phosphorus, and oxygen. The products mentioned above may have some zinc in them. Rust is an electrolytic reaction. That means you have to have two or more different materials, and an electrolyte. Water is the electrolyte, the carbon in steel alloys and the iron are the two different materials. Different metals have a different electrolytic potential. They make a battery. For example, if you put a piece of zinc and a piece of copper in lemon juice, the zinc is corroded, or used up to make electricity. The problem with rust is that once rust starts, the rust has a lower electrolytic potential than the iron, and rust then increases the rate of rusting. Zinc is used to prevent rusting because it has a higher electrolytic potential than iron, and the zinc corrodes, protecting the iron, until the zinc is gone. The way to prevent rust is to seal the steel from water, and air. I believe this is best done with an epoxy primer.

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