New 347 Build... '75 Street Queen

[tasker]

Hi! my name is Dick and.....never mind. No pressure dude...mine won't be making the trip south this time around. If i can help in any way please let me know.

 

[Mountain Ram]

LOL. not trying to be a dick, but you could swap the dizzy out in ten minutes and be driving!!! I have been a corral.net member for 15 years or so and i dont ever remember anyone recommending the chinese distributors.

it could still be the ECM and kinda sounds like a burnt 46 pin. have you tried to pull codes? EFI is easy but you have to have some tools and listen to folks that have been there and done that.

Cool- I will remove the comment... I am to the limits of my frustration which makes me look right past a lot of simple stuff... Call it human nature.

I have read a lot and listened very closely to comments on here. Look back at your original post where I said I had spark, the dizzy wasntwarm, but I wasn't ruling it out...

I am not a Mustang guy... Just know a lot that are- street and drag race guys... There was nothing but good experience with the Summit and a lot of bad with the MSD. I have seen quite a few TFI modules shut cars down, but always started back up when replaced. I have a ton of automotive experience. Including building engines, but first time Ford EFI experience... Which has become blatantly obvious.

No codes other than the standard stuff with the EFI swap.

With that behind us... Any dizzy you would recommend?

 

[Mountain Ram]

Hi! my name is Dick and.....never mind. No pressure dude...mine won't be making the trip south this time around. If i can help in any way please let me know.

I can feel the love now...

Assuming I have not fubar'd something in the ECM or harness with the bad dizzy or all the testing- i should be ready once i swap the dizzy... I say with fingers crossed. Not past my luck to have two bad dizzys on hand.

 

[Viperwolf1]

Went thru the tests here Click Here to isolate the coil and work towards the PIP and TFi. Coil passed, got the the test for the PIP and I don't have an LED to test with.

Tried with the SPOUT unplugged and still won't start. How could this dizzy die so quick?? A few test starts and one day of riding around??

Don't get hung up on parts dying quickly until you know they are dead.

You can try the PIP test with a voltmeter. If you see a fluctuating voltage while cranking it's probably ok.

 

[Bronco_69]

New 347 Build... WTF- no start again!

Autozone replacement is as good as the msd or summit, and there is a autozone on every corner if it fails. A low mileage ford unit would be best.


Are you getting NO codes? You should be getting the all clear code etc. if not then you have ECM or wiring issues

Edit: I see you are able to pull codes, so that is good news.

 

[Bronco_69]

You can try the PIP test with a voltmeter. If you see a fluctuating voltage while cranking it's probably ok.

yes, but he needs to do the test once he is in a "no start" condition.

 

[SC74]

The filter doesn't care if it is EFI unless it is being used on the high pressure side of the system; any filter will do just fine and 3/8 should be just fine. I have seen 1/4" filters out there that seem super small but I have run on in a pinch.

The filter might not care, but the EFI does! Been there done that.... Stick a carb rated filter on LP or HP side. If it can't let enough volume through it chokes the motor.

I don't have a part number but I ended up going with some Summit Trick Flow filters.

 

[Mountain Ram]

Autozone replacement is as good as the msd or summit, and there is a autozone on every corner if it fails. A low mileage ford unit would be best.


Are you getting NO codes? You should be getting the all clear code etc. if not then you have ECM or wiring issues

Edit: I see you are able to pull codes, so that is good news.

I get the 81, 84, 85, etc

Is it possible to rebuild the summit housing with new electrical components should they be bad (I will check as viper wolf suggested)? I like the look of the billet dizzy, but I did clean up the old one- just never tore down the old motor to verify it was a roller. I had read somewhere that some of the '88-'89 blocks were not roller... And because it's on the web... LOL

 

[Mountain Ram]

Well kudos to Summit... Called them a while ago and they were willing to send a new dizzy, I asked if I could return for full refund and they will send me a packing label...

I will check tomorrow to verify PIP or TFI... But based on previous comments... I will likely go with the one I have or a local parts store replacement...

 

[rcmbronc]

Just an FYI I use the Summit dizzy and have had no problem.

 

[Mountain Ram]

Just an FYI I use the Summit dizzy and have had no problem.

Not saying they are junk... but mine was bad out of the box.

You can buy the PIP sensor and TIF... but is it the design of the housing that retains heat or just the Chinese electronics that are the issue. I don't care to throw a new sensor in this housing- other than that I paid $175 for it and should get a working unit for that price...

 

[Mountain Ram]

Stabbed the old dizzy... Got timing close and started it up. Got it timed at 10BTDC and it had a surging idle and wouldn't stay running. It struggled to start like it was flooded. Held the gas peddle down to clear the flood and it would fire and die.

Then the starter shit the bed... None of this would really bother me if Super Cel wasn't a week away. Will pick up a new starter tomorrow.

Back to the other problem... I cleaned the IAC, but noticed it making clicking noises since first ignition. I think a bad IAC will cause the surging... The idle was set with the bad dizzy, but Woyld it need to be reset?

 

[Bronco_69]

i have not read your whole post and dont plan top read 35 pages LOl. i hope you have 19# injectors and the stock mass air. i know that the 347 could use more more but it is easier to start stock and upgrade as you go.

as you crank it (with spout out) have a friend slightly turn the distributor till it starts. set the timing to 10*. kill it, install spout and recheck the timing. it should move with the rpm. once you get it all tuned right the 347 should like about 36* total timing, but may surge with that much. that is where custom tuning and a chip will help out.

be sure to clear the codes after you do this.

the idle adjustment is a HUGE process and really should not be needed. the TPS setting should be checked but if it worked before then it should work now.

I really wish you had another ecm to drop in there and check out. do you have a friend with a 5 speed mustang? if so have him try your ecm in his car. that would ensure your computer is good without frying his.

 

[Mountain Ram]

i have not read your whole post and dont plan top read 35 pages LOl. i hope you have 19# injectors and the stock mass air. i know that the 347 could use more more but it is easier to start stock and upgrade as you go.

as you crank it (with spout out) have a friend slightly turn the distributor till it starts. set the timing to 10*. kill it, install spout and recheck the timing. it should move with the rpm. once you get it all tuned right the 347 should like about 36* total timing, but may surge with that much. that is where custom tuning and a chip will help out.

be sure to clear the codes after you do this.

the idle adjustment is a HUGE process and really should not be needed. the TPS setting should be checked but if it worked before then it should work now.

I really wish you had another ecm to drop in there and check out. do you have a friend with a 5 speed mustang? if so have him try your ecm in his car. that would ensure your computer is good without frying his.

30lb injectors, 76mm BBK TB, and 76mm C&L MAF... I can hear you groan now... I don't have a stock MAF, but do have a set of old 19lb injectors.

I have a remote start switch and a timing light. I disconnected the SPOUT and got it fired. Adjusted timing to 10 degrees by turning the dizzy. Jumped down to plug in SPOUT and it stalled... Checked codes- nothing.

Started the truck again Nd checked time, engine started to surge an died again.

I wish I had another ECM as well... But don't at this time. Since it was running and driving- although with a bad dizzy... Wouldn't that indicate everything was in good shape at that point?

 

[Bronco_69]

Not really. Nyles fried a ECM because of bad grounds and Destin fried a ECM for unkown reasons. They both ran but ran like crap.

 

[Bronco_69]

the aftermarket parts are really not a bad thing. it is just easier to get one running right with stock stuff and then add the goodies. I have a cobra intake, windsor sr heads, headers, etc and plan to start with 19's and stock maf.

my last set up was a 351w, gt40 heads, 5.0 cam, edelbrock intake, etc, and 19's and stock maf. at 10* timing it idled and ran great. the larger injectors are not needed until the upper RPM range and most broncos never go there.

your large TB will make the off idle stuff very hard for you. the larger blade moves ALOT more air when cracked off the seat. this makes it more responsive. not really a good thing in a bronco.

 

[Mountain Ram]

Not really. Nyles fried a ECM because of bad grounds and Destin fried a ECM for unkown reasons. They both ran but ran like crap.

No way to rule that out without getting another one? What else should I rule out before chasing another one down? BTW- you said to get a manual trans computer... But I have an auto trans computer.

I will start by trying to get it to run tomorrow after a new starter. It's killing me that this was running just fine last Sunday and nothing but trouble since.

 

[Mountain Ram]

the aftermarket parts are really not a bad thing. it is just easier to get one running right with stock stuff and then add the goodies. I have a cobra intake, windsor sr heads, headers, etc and plan to start with 19's and stock maf.

my last set up was a 351w, gt40 heads, 5.0 cam, edelbrock intake, etc, and 19's and stock maf. at 10* timing it idled and ran great. the larger injectors are not needed until the upper RPM range and most broncos never go there.

your large TB will make the off idle stuff very hard for you. the larger blade moves ALOT more air when cracked off the seat. this makes it more responsive. not really a good thing in a bronco.

I don't have a lot of money in the MAF, injectors, TB and tube... The truck is a street truck, I have a non Bronco rock crawler, so i figured these items would work with a bigger displacement and flow. The response was great when running before...

 

[Mountain Ram]

Picked up a starter today.

I have a buddy who is going to loan me an EEC. He said it is actually an unused reman computer he purchased for one of his projects PN 78-5895 which is an A9P. His project has not begun, so the computer is untested. He is also going to borrow a BBK 30lb MAF for me to try early next week if all else fails.

Another local Mustang guy was telling me this morning that the C&L can cause issues such as the surging idle and has to be played with. The C&L MAF is just a housing that re-uses a stock MAF sensor, but 'tricks' the computer by flowing thru a small sampling tube 'calibrated' for the injector size. He thought trying the BBK would be a good idea if I could get ahold of it...

The weather is supposed to be nice and I am anxiously optimistic that I can get this thing rolling before the SC...

 

[chuzie]

Re: New 347 Build... continues to drag on...

Picked up a starter today.

I have a buddy who is going to loan me an EEC. He said it is actually an unused reman computer he purchased for one of his projects PN 78-5895 which is an A9P. His project has not begun, so the computer is untested. He is also going to borrow a BBK 30lb MAF for me to try early next week if all else fails.

Another local Mustang guy was telling me this morning that the C&L can cause issues such as the surging idle and has to be played with. The C&L MAF is just a housing that re-uses a stock MAF sensor, but 'tricks' the computer by flowing thru a small sampling tube 'calibrated' for the injector size. He thought trying the BBK would be a good idea if I could get ahold of it...

The weather is supposed to be nice and I am anxiously optimistic that I can get this thing rolling before the SC...

Sent from my Droid using Tapatalk 2