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Member Since 20 Dec 2010
Offline Last Active Today, 07:30 PM

#1565794 Truck not running right

Posted by Doctor510 on Yesterday, 02:17 PM

Make sure that both sets of points are set right.

#1565791 Building a new motor.

Posted by Doctor510 on Yesterday, 02:15 PM

There is a ton of work to use the 2.4, if you can source a 2,2, IMHO is the best bang for the buck.  Heed the warnings in other posts.  I had a 2,2 in one of my cars, dyno'd at 185 HP and 218 Ft# torque,

#1564403 setting idle speed and timing

Posted by Doctor510 on 15 May 2018 - 07:13 PM

Do you drive the car/truck at idle????  Yes it is necessary for a happy motor!

#1564350 setting idle speed and timing

Posted by Doctor510 on 15 May 2018 - 03:16 PM

Well I just found this after 1 second of googling. I'm not crazy. Will give this a try.


"Set the Timing...Generally speaking you need a little more advance with a Weber than with the stock carb. A good place to start for most cars with Webers on pump gas is 12-14 Degrees advance at 1000 RPM idle and 36 Degrees total advance by 3000 RPM...This is not cast in stone and you need to make sure your car does not Detonate at these setting. If you get any detonation then you need to back off the timing..."


Follow up: how does one measure total advance?

"Webers" usually means the Side Draft DCOE version for that timing... Try 10* - 12* BTDC at idle.. Idle speed 800-900 RPM, the motor will tell you what it likes.   TOTAL TIMING you need an advancing (adjustable) timing light.  Warm up the motor, set the timing light to 34-36*, increase the engine speed to 2,800-3,000 RPM,  turn the distributor until the (0)/TDC marks on the pulley and timing plate are pointing at each other, Lock the dist down a drive it.  You may have to adjust the idle speed after this. Make sure you under stand what you are doing before doing it.  The original idle timing setting may not be the same,, leave it alone, you don't drive it at 900 RPM anyway.

#1561631 Weber DGV leaks fuel going uphill?

Posted by Doctor510 on 01 May 2018 - 01:13 PM

Mine has done that for 9 years, I just clean it regularly.  I finally fixed it by lapping the top of the carb and the edges of the top  on 800 grit sand paper.

#1561302 Need help 1976 datsun 620

Posted by Doctor510 on 29 April 2018 - 01:27 PM

Check the firing order.  COUNTER CLOCK WISE 1-3-4-2

#1560658 Another smoking L20b

Posted by Doctor510 on 26 April 2018 - 08:41 AM

Because i never have any luck with local nissan dept. The furthest back they could, or would, check is back to 1983. They found a part number for a 280z...figured i would give it a shot since it is still an l series engine and they were only $1.25 each. Will report back on whether they are the same as an l20b.

They are the same as the L20b, L16, L18, L24, L26

#1558638 Chevy 1 wire alternator

Posted by Doctor510 on 17 April 2018 - 11:25 AM

It will fit and work, the case is way different than the IR 280ZX one.  Custom bracket will be necessary.

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#1556279 Aprentice Needed for my 71-WPL510 Build

Posted by Doctor510 on 06 April 2018 - 08:31 AM

That would be really super if you can find someone.

#1555291 Weber running too lean, can’t adjust enough?

Posted by Doctor510 on 03 April 2018 - 02:03 AM

Your first question, Yes you should keep  backing out the A/F screw until it changes , then turn it in until smooth.  All the other info you got is super.  Go back to basics.  

#1555160 Mystery Starter

Posted by Doctor510 on 02 April 2018 - 08:23 AM

I fought this bitch for awhile before realizing it is not correct for my L16 73 620.
Been apart for 5 years...now rebuilding.
Looked at pics online and this one’s nose is too small, solenoid is in wrong place (hits dipstick) barely fits in but I never got the top bolt in.
It HAD to have been on there...can’t believe I didn’t notice how wrong it was during tear down.
i’m Gonna order a new one I guess.

Looks like a starter for a 240SX, wrong for your motor...

#1555159 Help with blow by

Posted by Doctor510 on 02 April 2018 - 08:20 AM

Do a leak down test, probably bad rings major surgery, it's an L16 right?

#1553418 New to me 1974 questions

Posted by Doctor510 on 24 March 2018 - 01:13 PM

Some folks on here recommend Pierce Manifolds for real Weber products.

I have used them for years, they are the best.  Get the DGEV (elec choke), you have the wiring there already.

#1552225 spark plug for rebello built L "2150" B motor

Posted by Doctor510 on 18 March 2018 - 04:50 PM

What ignition are you running?  Not knowing , the bpr5ea-L-11 (BP5RES-11) are cool gapped at .040" ish

#1551272 72' 510 Auto Trans Cabin Wiring

Posted by Doctor510 on 13 March 2018 - 01:28 PM

Go to the NICO website and pull down the FSM for the wagon