PLEASE HELP ME!!!!!!

[banzai510(hainz)]

a 38/38 should go pretty good on a L20

 

you ck the timming with a light?????????

dizzy OK not wiggleing?

valve lash OK.

ck the cam timming maybe off from previos owner

 

if there was a vaccum leak it probaply wouldnt idle.

fuel filter new?

 

 

save this and watch it

http://vimeo.com/19077890

[barricade88]

Yeah we checkd te timing and it was dead on. What should it be tho? And I don't think we checked all of that stuff you said

[barricade88]

We re did the timing chain about a year and a half ago when I got in a wreck. New gears and everything. It ran strong but it started backfiring out the carb so I bought an outlaw weber and put it on. And it still does it

[wayno]

Check your valve clearances, one day while I was driving down the freeway my truck started back firing out the carb, turned out the valves were out of adjustment, they were to tight and a couple had no clearance at all.

[banzai510(hainz)]

We re did the timing chain about a year and a half ago when I got in a wreck. New gears and everything. It ran strong but it started backfiring out the carb

 

well that says soemthing!!!!!!!!and you put another carb on there and the same.

 

 

I only you kow if the chain is coorcet per the timming marks. if GOOD, then ck the other stuff I have mentioned.

 

My L16 with a mild cam with a 38/38 would do 80mph and has a 4.37 gear ration so you know its spinning up fast. L20 is a longer stroke but think you could do 70mph pretty ez

[ggzilla]

Put your foot down and go. It wont break the OHC engine.

[Dat Lurka]

I put my foot down in fourth with no secondary on carb and do 75mph. That's with 228k miles. 

Can't complain. 

It's fun winding the bitch out just to keep up with traffic. 

[barricade88]

Yeah, I'll re check the chain and everything else. Thanks, and my friend want to sell me dual port offensively intake and a 390 c f m Holley carb for $500... Should I buy that

[barricade88]

Yeah, I'll re check the chain and everything else. Thanks, and my friend want to sell me dual port offensively intake and a 390 c f m Holley carb for $500... Should I buy that it's brand new

[ggzilla]

No you shouldn't buy it. If you cannot rev up the engine to its 7000 RPM redline now, how will an oversized carb help you?

[barricade88]

Yeah, I just don't know what to do to stop the bogging out and dieing

[converted_to_datsun]

Might be plugs... If they're fouled it would cause some issues. Have you ever done plugs, wires, cap and rotor? Mine had similar issues and my plugs and wires were to blame

[wayno]

Yeah, I just don't know what to do to stop the bogging out and dieing

 

Are you going to be around tomarrow, I could come over there, or you could come over here, I would be interested in hearing/seeing what it does, and looking at everything in general.

[bloodontheapex]

I don't have a lot of experience with the L20, but back fires from the carbs sounds like a timing issue.

 

Did you buy the 38/38 brand new?  How do you know the jetting hasn't been messed around with?  Are you sure it's bogging out rich?  Do you see/smell gas?  Is the carb tuned correctly?

[barricade88]

Yeah, timing is dead on, carb was brand new, an I have a 140 in it an bills Datsun in Clackamas out a 117 and it ran a little better for the co2 or CO but the bogging continued. And it's running very rich. I had gas in my oil. And yeah wayno I can swing by tomorrow

[barricade88]

Converted to Datsun, yeah I changed spark plugs, wired, new rotar and distributor cap and it did the same thing

[wayno]

Yeah, timing is dead on, carb was brand new, an I have a 140 in it an bills Datsun in Clackamas out a 117 and it ran a little better for the co2 or CO but the bogging continued. And it's running very rich. I had gas in my oil. And yeah wayno I can swing by tomorrow

 

I will pm you with my address and number, call me tomarrow after 9am and we can set up a time.

[bloodontheapex]

Hm, float sticking when you get on it, carb floods, engine dies.  That is my guess.

[barricade88]

Wayno, hey I just got on. But maybe tomorrow, I have an interview at 1030 tho.

And the float bloodontheapex?

[wayno]

I won't be available till the late afternoon tomarrow.

 

wayno

[bloodontheapex]

Wayno, hey I just got on. But maybe tomorrow, I have an interview at 1030 tho.

And the float bloodontheapex?

 

Just a guess.

[barricade88]

Ill have to check that tho, thank you!

[dr.feltersnatch]

pull out your spark plugs and read them, by read i mean if they are black and sooty its too rich. and start with the basics. new plugs. they are cheap enough to just grab a new set, dont bother cleaning the old ones. check your timing with a timing light. is your vacuum advance hooked up and working properly? what ignition are you running? points? if so check or replace those. are you running an air filter? is it dirty? check your valve adjustment. check your compression. then report back.

[bloodontheapex]

pull out your spark plugs and read them, by read i mean if they are black and sooty its too rich. and start with the basics. new plugs. they are cheap enough to just grab a new set, dont bother cleaning the old ones. check your timing with a timing light. is your vacuum advance hooked up and working properly? what ignition are you running? points? if so check or replace those. are you running an air filter? is it dirty? check your valve adjustment. check your compression. then report back.

 

I was thinking the vacuum advance as well.  If he installed the 38/38 himself, maybe he didn't route the lines correctly. 

[ggzilla]

Vacuum advance hooked up incorrectly won't cause sooty plugs.

 

Somebody needs to go over and HELP this guy.