Topic: glowing header

[madhunt]

we have a carburated 22r with a header, been running fine, now all of a sudden the header is now glowing red and first start up, then after it warms up its ok then when trying to pull a hill it starts glowing again, the plugs look fine, but we have yet to figure out what is going on. please give us some ideas. truck has plenty of power and is snappy, its runs warmer than usually does.

[12runner]

sounds like its running lean.

[DTPROFAB]

Running lean will increase EGT's in the cylinder/head a little, but not much. Timing is a FAR greater factor in EGT's. All else remaining equal (fuel, timing, throttle position,

[79coyotefrg]

carb is running lean, is the ignition timing on spec ??

[DTPROFAB]

that's probably why its running "snappy" and it will right tell you burn a hole in a piston I'm sure this was a "by sound" adjustments to the timing and carb do some research I'm sure you can find pics of plugs that will help you with the air/fuel... but take the time and put a timing gun to the engine so your timing isn't so advanced.......

[79coyotefrg]

yea  first time he goes full throttle  a valve will probably get eaten

i had 4 different valves do this before i figured out that a lean carb was the problem

[madhunt [OP]]

thats what we are thinking a lean mixture and bad timing, did some testing last night now waiting the results

[BigBs84]

results to be continued he didnt have a timing gun I will bring him one tommorow but I think it may be a tooth off from when power steering was upgraded.

[DTPROFAB]

glad to hear

[BULFYTR]

did some adj. last night on the carb. went 2 turns in and 2 turns out in 1/4 turn increments timing is set at 5to8* adv. and header still glows red what do i try next

[86turboyota]

is your exhaust clogged up?

[KYOTA]

banana in your tailpipe?

[BigBs84]

No he has darn near strait pipe.

[*ROKTOY*]

did some adj. last night on the carb. went 2 turns in and 2 turns out in 1/4 turn increments timing is set at 5to8* adv. and header still glows red what do i try next

Richer main jet

[madhunt [OP]]

carbex