running lean on entire pass side bank WTF!

[Toby_Goodmk]

does anyone out there have a PIN out from caspers what is correct. ??

 

[TurboBuRick]

Man I highly doubt that detonation took out your bearings. Specially #3 main. There had to be problems with the tolerances down below or you lost oil pressure.

As far as running lean, 9 out of 10 times the fuel pump or something related is the culprit. Sounds like you have things covered pretty good but i might question a single walbro pump. Why the passenger bank is leaner than driver does not make much sense though. If the fuel pump could not keep up, #1 would be the first to show it. Thats the last injector on the food chain.

For all the people who like to blame the stock ecm, this is proof things like this can happen with any management system....

 

[turbo89]

I am using this injector harness but with high resistance injectors. Is this an issue? I didnt think it would be???

http://www.casperselectronics.com/store2/product_info.php?cPath=5_6_10&products_id=619

no .. but you certainly don't need it

 

[turbo89]

also, looking at this picture I have the injectors wired on the opposite banks. Brown (2) orange(4) green (6)

http://www.installationinstructions.com/102037.pdf



Picture shows pink (2), yellow (4), blue (6)

logic tells me this is an issue.

The colors don't make any difference .. don't go by this

on the 7 pin grey connector .. A is cyl #1 , B is cyl #2, C is cyl #3 , F is cyl #4, G is cyl #5, H is Cyl#6 .. just make sure those all pin out correctly

Again I will ask the question .. WHAT DO THE VALVE SEATS / VALVES LOOK LIKE ON THE UNDERSIDE ??

 

[Chuck Leeper]

also, looking at this picture I have the injectors wired on the opposite banks. Brown (2) orange(4) green (6)

http://www.installationinstructions.com/102037.pdf



Picture shows pink (2), yellow (4), blue (6)

logic tells me this is an issue.

Weren't the plugs numbered as in the pics??
If so, did you mistakenly switch dr and pass sides?
IE dr = 2/4/6

 

[Toby_Goodmk]

The colors don't make any difference .. don't go by this

on the 7 pin grey connector .. A is cyl #1 , B is cyl #2, C is cyl #3 , F is cyl #4, G is cyl #5, H is Cyl#6 .. just make sure those all pin out correctly

Again I will ask the question .. WHAT DO THE VALVE SEATS / VALVES LOOK LIKE ON THE UNDERSIDE ??

Have not taken the valves out of the head as I do not have a spring compressor. The valves underneath dont look burnt...IE blue tint, orange tint, etc.

 

[Toby_Goodmk]

Weren't the plugs numbered as in the pics??
If so, did you mistakenly switch dr and pass sides?
IE dr = 2/4/6

I wish I could remember, but the tags on them were removed and do not have evidence to who's error it was.

 

[Toby_Goodmk]

no .. but you certainly don't need it

thanks but in cases where replacement is done..I will overkill to be safe.

 

[turbo89]

Have not taken the valves out of the head as I do not have a spring compressor. The valves underneath dont look burnt...IE blue tint, orange tint, etc.

while you have the heads off .. I encourage you to look at the seats / inspect the valves carefully on that side and make 100% sure

 

[Toby_Goodmk]

Man I highly doubt that detonation took out your bearings. Specially #3 main. There had to be problems with the tolerances down below or you lost oil pressure.

As far as running lean, 9 out of 10 times the fuel pump or something related is the culprit. Sounds like you have things covered pretty good but i might question a single walbro pump. Why the passenger bank is leaner than driver does not make much sense though. If the fuel pump could not keep up, #1 would be the first to show it. Thats the last injector on the food chain.

For all the people who like to blame the stock ecm, this is proof things like this can happen with any management system....

Me and Fiscus were talking today (thank God he lives 3 miles away) and were were discussing the very same thing. 255....not enough... So I am moving up to 430 with Nick's billet hanger. I drained the tank today. It took 3 minutes to fill a 5 gal gas can on 18v makita battery. Seems like the pump was doing its job. Going bigger anyways. Eliminate that possibility.

 

[Toby_Goodmk]

while you have the heads off .. I encourage you to look at the seats / inspect the valves carefully on that side and make 100% sure

guess I will invest in a spring compressor and be careful at it. Never have removed springs before in this century....lol....being serious...since Diesel school but willing to go at it.

 

[turbo89]

thanks but in cases where replacement is done..I will overkill to be safe.

Its not just overkill .. it serves no purpose at all .. that's my point .. but hey its your money overkill all you want

 

[turbo89]

guess I will invest in a spring compressor and be careful at it. Never have removed springs before in this century....lol....being serious...since Diesel school but willing to go at it.

not much has changed its a snap .. just check the valves and the seats very carefully .. take your time

If you can post up some pics each ...

 

[Toby_Goodmk]

Man I highly doubt that detonation took out your bearings. Specially #3 main. There had to be problems with the tolerances down below or you lost oil pressure.

I agree with you 100% on the main bearing being toasted. I believe it was a separate issue that stems back to the time where the builder put too loose of bearings in. We had oil pressure for shit. We undersized .001 and I MUST have done something wrong along the way. The plastigauge showed a nice .018 +/- .001-.002 across the mains at that time. As for the rod bearings that fell out of their caps...I think these were victims of the detonation on their respective cylinders. My study this week is finding two problems in one occurrence. I'd wager a Benjamin on it.

 

[Chuck Leeper]

Again I will ask the question .. WHAT DO THE VALVE SEATS / VALVES LOOK LIKE ON THE UNDERSIDE ??

Toby, we need an answer to this ??
If those valves were not set correctly, it could well be the cause w/ the lean burn.
The fuel being burned in the exh port could "cook" the header flanges, cause the burns on the pistons, toast the plugs.etc.
Post a pic of this, including the plugs.

 

[Toby_Goodmk]

Toby, we need an answer to this ??
If those valves were not set correctly, it could well be the cause w/ the lean burn.
The fuel being burned in the exh port could "cook" the header flanges, cause the burns on the pistons, toast the plugs.etc.
Post a pic of this, including the plugs.

you saw the header flanges up in the first post. I cannot post a pic of the pistons as the short block is on its way to Zimmerman. Ill send pics of the plugs in a few

 

[Toby_Goodmk]

here are the plugs on the pass side bank, they are numbered according to the file picture name. They are new UR3 NGK

 

[Toby_Goodmk]

The colors don't make any difference .. don't go by this

on the 7 pin grey connector .. A is cyl #1 , B is cyl #2, C is cyl #3 , F is cyl #4, G is cyl #5, H is Cyl#6 .. just make sure those all pin out correctly

Everything was wired opposites. But this shouldn't matter because it is sequential fired?

 

[turbo89]

Everything was wired opposites. But this shouldn't matter because it is sequential fired?

The stock setup is sequential fired as well .. the pin position on the 7 pin needs to have the correct order to utilize SEFI .. its not a BATCH setup ..

 

[Toby_Goodmk]

The stock setup is sequential fired as well .. the pin position on the 7 pin needs to have the correct order to utilize SEFI .. its not a BATCH setup ..

I think I know what you refer to, but put it into simplest form. Did this make a difference?