red hot manifold

[broken-clipse]

i have a 95 turbo eclipse and when its driven the exhaust manifold heats up real bad and turns the manifold red as well as the o2 housing. this occurs after only 5-10min can anyone help me ? this isnt normal right? what can cause this ?

[Nick]

Being to rich or to lean. Is this while your beating on the car?

[Skillionaire]

If its just after you have driven it hard, its normal.

[Mr 2]

really retarded timing. Is your car sluggish? Maybe the ECU is pulling timing.

[flubyux2]

do you have a stock exhaust? or, better yet, do you still have a cat on there? if you do, theres a good chance it could be clogged and causing the exhaust to back up pretty bad.

i leaned out my motor on highway cruising for fuel economy and got my fuel trims as close to 100% as i could. (this is the A/F ratio that the ECU is trying to adjust for anyways) Just w/ steady cruising at 90 mph in this state of tune cause my manifold to glow bright red right at the collector... so sometimes its not thru any fault of your own.

then again, that motor had 2G pistons in it, stock 1G manifold and 6cm exhaust housing, so that hot-ass exhaust was backing up in the manifold severely. and ~90mph on a 1G AWD tranny is right around 4000 rpm... so i wasnt putting along.

[THE_ONE]

I agree with flubyux2, the black 2g had the same problem till I changed to a turbonetics T-3 manifold and a T-3/4 Turbo!

This problem never occured again, and to this day it is believed to be from poor flow and backing up in the manifold!

[PiercedJD]

timing problem.
namely ignition timing retarded.

check your cm gears and make sure they are timed properly.

may have lost a balance shaft belt, and caused the timing belt to skip a few teeth ( has happened to me before. )

the ignition timing will go off resultantly, and cause the combustion charge to ignite in the exhaust manifold, rather than the cylinder , which equals manifold reaching combustion chamber temps ( which are a little on the warm side) which equals glowing manifold/turbo, and the occasional things in the engine compartment melting/catching on fire.

clogged cat would not cause what he is experiencing. clogged cat would take longer than 5-10 minutes running to create that level of heat ( if it ever did, and it would NOT happen during off boost driving).

just check your cam gears and make sure they are lined up, and make sure the tdc mark on the crank pully lines up with 0 on the front case cover ( the plastic cover that covers the timing belt.)

[sinister4g63]

Yeah after 5 10 minutes thats not really right, if your driving normal. But if your beating the crap out of it for like 5 10 minutes straight, its gonna glow.