Believe it or not this ran!

[EagleMark]

How not to wire, mount sensors and ECM... also a V8 engine with V6 chip and netres... ran till power wire shorted to valve cover...

[Six_Shooter]

[RobertISaar]

not that it's computer controlled, but the 83 mustang my father bought was FAR worse.

[JeepsAndGuns]

Wow, that poor YJ.

[EagleMark]

If you look real close at pink wire under wire nut you can see why it stopped running, wire to coil rubbed through on valve cover...

Runs pretty good now with a V8 bin and some adjustments... now on to more then 10 PSI fuel pressure and I think it will be fine.

[dave w]

This got me thinking, maybe we should start a "Hall Of Shame" thread for a collection of photos and stories?

I've encountered Several "Less than Professional" repairs / conversions I could add.

dave w

[EagleMark]

Well maybe, I'm having mixed feelings and don't want it to turn to a bash thread, maybe if we left it nameless and anonymous?

I like the positive attitude here and don't want that to change. People make mistakes and because we never bash or flame they can come here to find them.

[1project2many]

How much clean up work did you have to do? Was that part of the job?

What gets me upset is when I see paid for work that has shoddy quality. If someone had paid for that mess I'd really be steamed.

[Nasty-Z]

Wow , just wow ........

TOM

[dave w]

I would not want to bash anyone either. I was thinking more along the lines of a couple TBI conversions (International Scout and a Dodge Pickup) I've worked on where the old points coil was still being used. The engine would run, but the spark advance was very erratic with the points coil. The surprising thing about these conversion using the old points coil, was the conversion kits are "products" from one of the online fuel injection conversion companies. Heck, I've even seen products from this online fuel injection company on "Power Block TV"

I was thinking of a 350 TBI engine to 454 TBI engine conversion, where the 350 throttle body was installed on the 454 because the 454 throttle body did not have a 700R4 TV cable bracket. I'll note, the 454 injectors were installed into the 350 throttle body. Shortly after I finished tuning the chip for the 350 throttle body, the 700R4 transmission failed because the TV Cable had not been adjusted! The vehicle owner fixed the 700R4 with a TH400. I'm not sure what the vehicle owner did the TH400 Kick Down, the 700R4 equipped pickups did not have the Kick Down relay.

dave w

[Nasty-Z]

Dave ,

I know this is a thread drift , but can you enlighten me on the down sides of using a cylindrical oil filled (points type?) coil in a TBI setup ? I assume the oil filled cylindrical coils are the ones you are refeering to ? Or do you mean the original points coils used without a ballast resistor ?

I have used the socket cap and HEI style oil filled cylindeer coils (aftermarket) for years with TBI conversions , I believe it was Rbob on Thirdgen ( think that is where I read it...) that said one time they were more resilient and durable than the epoxy filled or OEM style coils.

Just curious is all , maybe something I need to look further at ?

The 350/454 TBI deal is a good one , seen that one myself .......

Thanks

TOM

[dave w]

Dave ,

I know this is a thread drift , but can you enlighten me on the down sides of using a cylindrical oil filled (points type?) coil in a TBI setup ? I assume the oil filled cylindrical coils are the ones you are refeering to ? Or do you mean the original points coils used without a ballast resistor ?

I have used the socket cap and HEI style oil filled cylindeer coils (aftermarket) for years with TBI conversions , I believe it was Rbob on Thirdgen ( think that is where I read it...) that said one time they were more resilient and durable than the epoxy filled or OEM style coils.

Just curious is all , maybe something I need to look further at ?

The 350/454 TBI deal is a good one , seen that one myself .......

Thanks

TOM

Tom,

I don't see advantages to using a 350 Throttle Body (rated at about 535 CFM) on a 454 engine that the factory equipped with a throttle body rated at about 670 CFM. I was thinking, "Believe it or not this ran". I was thinking a "Professional Conversion" would be to install a throttle linkage with a 700R4 TV Cable Bracket onto the 670 CFM 454 Throttle Body.

I'll admit the oil filled cylindrical point type coil was a head ache. At first I did not think or consider that the oil filled cylindrical point type coil would be the cause of the erratic timing. I actually called Mark to confirm / deny the coil could be an issue. Mark confirmed the point coils have issues with TBI electronics. I'm not sure why the old point type did not work. In both instances, I don't remember if the ballast resistance had been removed from the coil circuits. In both instances, installing a TBI coil fixed the erratic spark timing! In both instances, the TBI coils were installed without any ballast resistance. When all was done a said, I was thinking "Believe it or not this ran".

dave w

[Nasty-Z]

Tom,

I don't see advantages to using a 350 Throttle Body (rated at about 535 CFM) on a 454 engine that the factory equipped with a throttle body rated at about 670 CFM. I was thinking, "Believe it or not this ran". I was thinking a "Professional Conversion" would be to install a throttle linkage with a 700R4 TV Cable Bracket onto the 670 CFM 454 Throttle Body.

I don't see why it is done that way either , that is what I meant by my comment , I have seen 454 injectors swapped into a 350 TBI myself on a 454 in front of a 700R4 , just didn't get it at the time either.....

The 454 / 700R4 trucks I have including my Blazer have the arm from a 350 TBI with the provisions for the TV cable swapped onto the 454 TBI unit , after the 454 TBI was "massaged" . I also think this is the "professional" way to do it.

I'll admit the oil filled cylindrical point type coil was a head ache. At first I did not think or consider that the oil filled cylindrical point type coil would be the cause of the erratic timing. I actually called Mark to confirm / deny the coil could be an issue. Mark confirmed the point coils have issues with TBI electronics. I'm not sure why the old point type did not work. In both instances, I don't remember if the ballast resistance had been removed from the coil circuits. In both instances, installing a TBI coil fixed the erratic spark timing! In both instances, the TBI coils were installed without any ballast resistance. When all was done a said, I was thinking "Believe it or not this ran".

Like I said , just curious , if there was something I was missing by using them , I would consider swapping them out .

Thanks for the response.

TOM

[EagleMark]

It was so long ago I researched coils from points vehicles that I forgot what exactly was the issue? Besides the points coil runs like 8 volts with resister as to not burn up points, most cars had a 12 volt bypass off starter so it got more spark at cold crank. They put out like 25K volts and EFI is like 40K.

Oh, I think it had to do with Dwell and saturation time, points were always the same, distributor moved around to change timing and in EFI the EST/ICM changes this time to fire coil? SO more advance = less spark because of less saturation? Maybe, I forget but I have never run a points coil since and never had issues.

[ony]

need a steamed an a flamed smiley added to the colection