Engine/Transmission (1994 - 1998) AFC housing break off screw

[TKohler]

Today i was moving the star wheel & i noticed the break off screw on the afc housing is not the first screw but the 2nd one toward the fire wall & the slotted screw is the 1st one . Every instruction i saw like tst & banks show the break off screw to be the 1st screw & slotted 2nd. Is this how some are or did some one put a plate in. The owner told me he put a new banks waste gate & maybe a banks plate in but im not sure. I knew very little about the truck when i bought it . He also moved and i can not get in touch with him . Also i do not have any gauges . I turned the wheel toward the engine about 2 full turns & i have no smoke at all now before i had alittle smoke at high rpm. pyrometer is on the way !

 

[mikel]

I think some of the plate kits come with a replacememt break-off screw. If whoever installed the new plate used it then they probably installed it in the back since that is easier to get to.



mike

 

[CarlJensen]

Replace all of the screws with 6. 0X1. 0 metrics. 18mm for engine side and 24mm for fender side. Simplifies removal next time.

 

[Bob4x4]

The button head cap screw looks very close to a breakawy screw if you want to disgiuse but still have easy access.



Bob

 

[TKohler]

So the button head screw looks like a break off screw ? Whats the diference ? Does the button head screw have a little hole in it and just pops off and then theres the screw head . I played around with a screw driver but i think it was probally to big to get under. IF i keep moving the star wheel towrad the engine will my egt get to hot with out a pyro to know? Sorry about all the Q's I ' m starting to understand all this . THANKS

 

[I-6DZL]

If you tighten the star wheel you will have less fuel, if you loosen the star wheel you will have more fuel!

I doubt you'll have enough fuel to hurt the engine. Just to be on the safe side, don't go above 3/4 throttle until you get the pyro and boost installed!



Curtis

 

[Joseph Donnelly]

The star wheel and spring control the onset and rate of fueling increase vs. boost.

A button head allen screw has a hex recess for an allen bit. M6 uses 4 mm allen bits if button head, 5 mm if socket head.