Air Care Help?

New posts disabled. Archived technical discussion about the Datsun PL510
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rnorrish
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Postby rnorrish » 19 Oct 2004 14:14

understandable.
I hope to see how things turn out next summer!

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bertvorgon
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Postby bertvorgon » 19 Oct 2004 17:12

I have no doubt they will be just fine!......I hope! Not the first time I have shot myself in the foot, and arm, and...
"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan

1973 2Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1968 Vintage 3HP Mini Bike
1971 Vintage 13' BOLER trailer

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rnorrish
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Postby rnorrish » 20 Oct 2004 00:05

and I'm sure there has been some holes in some engine parts too.
richard norrish
'68 'goon resto / '71 ice racer / '72 'goon project / '70 4-door rust pile / '67 520 project
----------------------------------------------------------------------
shardik wrote:My swap will be made of solid gold and it will run on puppy farts.

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bertvorgon
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Postby bertvorgon » 20 Oct 2004 07:11

No engine parts! Touch wood, the only thing I have broken, in all these years of playing, was a transmission. It was in my 1972 station wagon. I had just finished doing an exhaust mod, and I was rowing it through the box under HARD acceleration, when I missed a shift. The transmission just exploded!! I could not believe it. It split the case. It just about spun in my own oil. Needless to say the transmission was instant junk.
"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan

1973 2Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1968 Vintage 3HP Mini Bike
1971 Vintage 13' BOLER trailer

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jason
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I hate air care!

Postby jason » 09 Dec 2006 16:11

Well, another year, another motor and another fail. So close this time. I'm now running a L20b with a Crane Cam, Dual 38mm SU's, and a black box EI.

Driving Test

Maximum - Reading

Hydrocarbons - 409 - 104
Carbon Monoxide - 4.76 - 0.23
Oxides of Nitrogen - 4356 - 3818

Idle Test

Hydrocarbons - 1052 1169
Carbon Monoxide - 5.54 9.99

So, I guess the plan is to lean out the carbs, change the plugs, clean the air filters, retard the timing and add a little methyl hydrate into the fuel now?
Jason

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Rehs
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RE: I hate air care!

Postby Rehs » 09 Dec 2006 23:21

Jason, what did you have your idle set at? If it was anything below 1100RPM it was too low. You should have come by my friend's shop and we could have thrown it on the gas analyzer.

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jason
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RE: I hate air care!

Postby jason » 09 Dec 2006 23:24

Evening Andrew, hmm... I think I set the idle at 850rpm. I seem to be running too rich at idle so......
Jason

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Rehs
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RE: I hate air care!

Postby Rehs » 09 Dec 2006 23:27

Turn up the idle and put a slight bit heavier oil in the pots.

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jason
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RE: I hate air care!

Postby jason » 09 Dec 2006 23:32

Could work, I'll give you a call tommorrow, going to bed now!
Jason

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Rehs
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RE: I hate air care!

Postby Rehs » 09 Dec 2006 23:37

Holy crap, this is an old thread dude! Once hijacked, and now re-hijacked. Cool!

P.S. Call me at my home number... I seem to be late with cellphone payments... :(

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jason
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Re: Air Care Help?

Postby jason » 15 Jan 2009 17:13

Well, it was time for the $23 test drive on the government dyno again. My daily driver 510 wagon this time. It's got a L20b, stock bore, W58 round port head with steel exhaust liners still in, Shadbolt/Colt 445 camshaft, stock valves, dual 38mm SU carburettors and a 2" exhaust. Only things I did this time was to slightly richen up the carbs (they where running too lean, ask Denis :oops: ), change out to BPR5ES plugs gapped to .032, clean the K&N air filter elements and take her out on the highway for a 15 minute 4000 rpm drive. Passed!

Driving Test

Hydrocarbons Allowed 370.0 Vehicle Reading 65.00
Carbon Monoxide Allowed 4.22 Vehicle Reading Driving Test 0.86
Oxides of Nitrogen Allowed 3895 Vehicle Reading 898.00

Idle Test

Hydrocarbons Allowed 1052 Vehicle Reading 205
Carbon Monoxide Allowed 5.54 Vehicle Reading 2.70

Wow, that's a first for me on anything but a stock L16 :D !
Jason

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defdes
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Re: Air Care Help?

Postby defdes » 15 Jan 2009 17:54

That's one "fresh" car you have there...I can smell the wint-o-green goodness from here. :)
I would have expected allot higher numbers.

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jason
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Re: Air Care Help?

Postby jason » 15 Jan 2009 18:31

Yah, I totally expected to fail this one and have to readjust everything. I guess those silly steel liners on that head do help reduce emissions. Now I have to deal with the oil leak problem :cry: !
Jason

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jason
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Re: Air Care Help?

Postby jason » 11 Jul 2011 14:25

I'm really starting to get tired of air care. I took the stock carbed, L16 wagon with 5 speed in to air care on Saturday and failed on the CO at idle test only. Backed off the timing by 5 degrees, advanced the idle to 1100 rpm and leaned out the mixture and today she passed clean, for $46 ... The car runs pretty bad in this shape so I'm going to re tune her when I get back home. What a cash grab.
Jason

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Byron510
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Re: Air Care Help?

Postby Byron510 » 11 Jul 2011 21:26

Glad we had that little phone call Jason - looks like it helped, glad you're through. It's late enough in the season fro you to get two years out of this test!

Byron
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because the opposite never works.


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