Glowing manifold turbo and o2 housing

RS 2000 · 5-12-08, 6:44

Hi ,just recently got a 1989 626 turbo and have been noticing that ex. manifold ,turbine housing and 02 sensor housing glow red even after off boost driving,it also takes longtime to cool down to no glowing at all. is this normal for these engines ? if so what can be done to reduce it/eliminate it?
will a bigger exhaust help(putting one on this friday).

Cheers

fredio54 · 5-12-08, 6:55

Timing retarded fully or something?

Does the engine sound unusually loud? Is it pretty gutless?

RS 2000 · 5-12-08, 7:07

10 degrees bridged , knock sensor is not retarding timing if that is what your getting at. It has plenty of power.it varies from dark red if driving off boost to bright orange when driving hard

compnut21 · 5-12-08, 7:20

the only time ive ever made mine glow was when i did a hour drive at 3k-4k rpm the whole time. it was a pretty red. maybe your water lines are blocked up?

fredio54 · 5-12-08, 8:15

what do you mean "10 degrees bridged" ? That you are driving with it at 10 degrees? Or that it is 10 degrees when the test plug has the wire bridged? I assume the latter. The coolant line issue seems feasible.

Snap some pics/vids, at the very least its cool to look at :-)

king_pompolompo · 5-12-08, 17:35

i had the same thing. eventually mine got so hot it shut it self off and cracked the turbo. i would get that fixed asap

RS 2000 · 5-13-08, 7:04

Quote:

Originally Posted by king_pompolompo

i had the same thing. eventually mine got so hot it shut it self off and cracked the turbo. i would get that fixed asap

so what didi you fix to stop glowing on yours?

RS 2000 · 5-13-08, 7:12

Quote:

Originally Posted by fredio54

what do you mean "10 degrees bridged" ? That you are driving with it at 10 degrees? Or that it is 10 degrees when the test plug has the wire bridged? I assume the latter. The coolant line issue seems feasible.

Snap some pics/vids, at the very least its cool to look at :-)

yep 10 degrees base timing bridged. The coolant flow crossed my mind but turbo centre housing isnt glowing,only the exhaust gas flow path is glowing.the turbo and lines have recently been off as it is a brand new CHRA assembly with new hoses so I have steered away from that possibility.
I forgot to mention it is only visible in the dark. anyone else experienced this?
Or has anyone else got any ideas?

Cheers

fredio54 · 5-13-08, 8:59

can you verify that it has good timing under load? (not easy i know...)

**Mazda Carnage** · 5-14-08, 0:32

I would guess the cat is pretty blocked up, the coolant for the turbo wont cool the many or o2 housing.

fredio54 · 5-14-08, 1:44

Why did no one else think of this? I'm not familiar with the concept of a cat, so thats my excuse K++.

RS 2000 · 5-14-08, 8:13

I am kind of hoping exhaust will fix it as I have planned to make one this friday.
It made 102kw@wheels on 10 psi whith this stock exhaust choking it hard.(not bad though considering it is ATX).I am putting it back on the dyno as soon as I do the exhaust, for boost and fuel set up,so I will have the results on friday for power and also whether the glowing is gone!

**SixSick6** · 5-14-08, 9:20

Whatever you do...make sure you dont touch it with your tongue or you nipples.

It's cast iron man. What do you think it does when it gets hot? And of course you can only see it happen at night, it's night time!

**Rizzo90** · 5-14-08, 9:45

Quote:

Originally Posted by SixSick6

Whatever you do...make sure you dont touch it with your tongue or you nipples.

It's cast iron man. What do you think it does when it gets hot? And of course you can only see it happen at night, it's night time!

dam sick....that made me laff so hard, I allmost ended up wearing a mouthful of coffee!!!!!

RS 2000 · 5-15-08, 8:15

Quote:

Originally Posted by SixSick6

Whatever you do...make sure you dont touch it with your tongue or you nipples.

It's cast iron man. What do you think it does when it gets hot? And of course you can only see it happen at night, it's night time!

I am well aware of the material it is all made out of and what it does when it gets hot and the fact I can see it when it's dark.

What I was asking is whether it is normal to glow like that even when driving off boost.

5-12-08, 6:44	#1 (permalink)
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)	Glowing manifold turbo and o2 housing Hi ,just recently got a 1989 626 turbo and have been noticing that ex. manifold ,turbine housing and 02 sensor housing glow red even after off boost driving,it also takes longtime to cool down to no glowing at all. is this normal for these engines ? if so what can be done to reduce it/eliminate it? will a bigger exhaust help(putting one on this friday). Cheers
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)

5-12-08, 7:07	#3 (permalink)
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)	10 degrees bridged , knock sensor is not retarding timing if that is what your getting at. It has plenty of power.it varies from dark red if driving off boost to bright orange when driving hard
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)

5-12-08, 7:20	#4 (permalink)
compnut21 Join Date: Oct 2007 Location: Olympia, WA iTrader: (2)	the only time ive ever made mine glow was when i did a hour drive at 3k-4k rpm the whole time. it was a pretty red. maybe your water lines are blocked up?
	89 GT 4WS/Megasquirt/Zebel o2/2.5" Exhaust/10ish psi 1989 Wiring Diagram PDF Useless crap for sale R.I.P. compnut21?

5-14-08, 0:32	#10 (permalink)
Mazda Carnage Join Date: Mar 2004 Location: canada Age: 34 iTrader: (0)	I would guess the cat is pretty blocked up, the coolant for the turbo wont cool the many or o2 housing.
	http://www.cardomain.com/id/mazdacarnage BUILD IT, BEAT IT, BRAKE IT, REBUILD IT, BEAT IT MORE, BRAKE IT AGAIN, BUILD IT BETTER, BEAT IT THE MOST AND ? Figuring out speed limits in Quebec: (cornering) The speed at wich your car will break traction and leave the road -1 km/h .(staight line) In the highest gear, when the car is red lined . Those who do not respect these "SPEED LIMITS" should keep of the roads of QUEBEC.

5-14-08, 8:13	#12 (permalink)
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)	I am kind of hoping exhaust will fix it as I have planned to make one this friday. It made 102kw@wheels on 10 psi whith this stock exhaust choking it hard.(not bad though considering it is ATX).I am putting it back on the dyno as soon as I do the exhaust, for boost and fuel set up,so I will have the results on friday for power and also whether the glowing is gone! Last edited by RS 2000 : 5-14-08 at 8:15. Reason: spelling mistakes
RS 2000 Join Date: Mar 2008 Location: iTrader: (0)

5-12-08, 6:55	#2 (permalink)
fredio54 Banned Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	Timing retarded fully or something? Does the engine sound unusually loud? Is it pretty gutless?

5-12-08, 8:15	#5 (permalink)
fredio54 Banned Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	what do you mean "10 degrees bridged" ? That you are driving with it at 10 degrees? Or that it is 10 degrees when the test plug has the wire bridged? I assume the latter. The coolant line issue seems feasible. Snap some pics/vids, at the very least its cool to look at :-)

5-12-08, 17:35	#6 (permalink)
king_pompolompo Join Date: Sep 2007 Location: bc, Canada Age: 18 iTrader: (0)	i had the same thing. eventually mine got so hot it shut it self off and cracked the turbo. i would get that fixed asap

5-13-08, 8:59	#9 (permalink)
fredio54 Banned Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	can you verify that it has good timing under load? (not easy i know...)

5-14-08, 1:44	#11 (permalink)
fredio54 Banned Join Date: Aug 2004 Location: Auckland, New Zealand iTrader: (1)	Why did no one else think of this? I'm not familiar with the concept of a cat, so thats my excuse K++.