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Topic: Okay need help bad. (Read 3404 times) previous topic - next topic

Okay need help bad.

In order to store the bird for the winter, I need to get the bronco on the road.  We solve most of the problems, but one large one remains.

89 Bronco 2,  2.9L 5 speed, auto transfer case. 

The starter, when the key is turned, grinds like crazy.  Engages enough to start the vehicle, sometimes.

We checked the ring gear on the flywheel, and it looks good all around...no chips or missing teeth.  The locating/spacing plate between the motor and bellhousing is intact and straight.  The flywheel is torqued correctly.  The starter that was in the truck looks like the very ends of the gears were worn.  no chips or missing teeth on either starter.  the bendixes in both move correctly when bench tested.

what gives?  Ive never ran into something like this before.....  does anybody have any experiance with the bronco 2 or other vehicles with this drivetrain?
88 TC, Lots of Mods.


Okay need help bad.

Reply #1
I know but bare with me. Is the battery fully charged? What are the battery cables like? Could they have gotten that rot under the insulation that I've seen all to many times? Either that our you have a bad starter from the sounds of it. I know bench tested right? Well did the bench test put a load on the starter once it was up and running. I've seen it many times when I test one at work new battery, new cables it still won't start but the starter test good. Replace the starter and it starts right up. Yes a bench test can tell you if the starter is working but it doesn't seem to put any load on the starter to see the amount of torque much less tells you if that is enough to turn your motor over like you need it to start it!  Oh yeah my experience with at Bronco 2 with a 2.9L is when you have I think it is a 89-90 model with electric auto tranny you never want that thing to go out. Expensive to get replaced.
84 Turbo coupe 2.3T Modded with 88 upper and lower intake, 88 injectors, E6 manifold, T3-4 AR.60 turbo, 31X12X3 FMIC, Homemade MBC , Greddy knock off BPV.
4 eyes see better than 2! 
Da Bird!

FreeBird

Okay need help bad.

Reply #2
The battry is new and fully charged.  the cables are all good and free of any corrosion.  FWIW, the stater in the truck loked brand new...ad the replacement started the 88 B2 it was in just fine.  This seems to be a problem of the starter actually engaging the flywheel correctly , not an actual torque problem.  .the test showed that the bendix was moving out correctly.  if it engaged he flywheel right then theres no doubt it has the power to turn it over...as it does from time to time...it just grinds like crazy.
88 TC, Lots of Mods.


Okay need help bad.

Reply #3
Oh and yes, its got the auto transfer case in it... manual transmission.  And i have e extra auto transfer cases.
88 TC, Lots of Mods.


Okay need help bad.

Reply #4
So I guess you are saying that the start is kicking out but just not enough to fully in gauge the flywheel. I do see a different part number for the 2.9 than a 5.0,2.3 ,or the 3.8 so maybe it has a longer throw or locates the Drive closer to the flywheel. Hard to say without being there and seeing it in person. And my lands it has got to be cold out there! I feel your pain and it sucks. Do they use salt up there or that alternative stuff? If its salts hope it doesn't snow or anything until you get the bird put up. Hate to see that subjected to SALT!
84 Turbo coupe 2.3T Modded with 88 upper and lower intake, 88 injectors, E6 manifold, T3-4 AR.60 turbo, 31X12X3 FMIC, Homemade MBC , Greddy knock off BPV.
4 eyes see better than 2! 
Da Bird!

FreeBird

Okay need help bad.

Reply #5
sounds just like my ranger did.  it ended up being the ground cale to the engine block.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Okay need help bad.

Reply #6
they use salt.....ugh.  and way too much of it.

so shame, a bad bround made it actually GRIND when the key was turned?  I mean ths grinds like im missing teeth on the ring gear... and catches just enough to spin the motor quick.  but it is definitely going to damage something if i try to keep starting it like this.
88 TC, Lots of Mods.


Okay need help bad.

Reply #7
Perhaps the starter engages,but it's still not as strong as it should be.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Okay need help bad.

Reply #8
Quote
so shame, a bad bround made it actually GRIND when the key was turned? I mean ths grinds like im missing teeth on the ring gear... and catches just enough to spin the motor quick. but it is definitely going to damage something if i try to keep starting it like this.
yep. the truck was a stick so sometimes when it wouldnt start i could at least pop it but the starter had become unreliable untill it did what you describe most of the time....i assume my starter wasnt getting the power required to keep it engagued to the flywheel. found the cable after replaceing both the battery and starter. flywheel was mint. might be something to look at anyway, but my problem sounded exactly as you describe.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Okay need help bad.

Reply #9
That is very interesting.  The cable looks okay, but I guess it could have issues.  Are you talking about the actual cable that goes from the starter up top?  Or are you speaking of the actual block to firewall ground?

I just heard the same thing from one of my co-workers....the starter does not ge enough voltage, so it kicks out, but doesn't stay all the way out. Is that accurate?
88 TC, Lots of Mods.


Okay need help bad.

Reply #10
Is the noise actually coming from the starter? and not the grindy clickey noise from the soleniod?
Just a thought.
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***** Project "EVOLUTION" 1987 Cougar LS  & 1985 Cougar Convertible *****
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5.0 HO 306 roller block, machined GT-40P heads, Wiseco dished forged pistons, Eagle forged floating I-beam connecting rods, Lunati pushrods, ARP bolts, Scorpion aluminum 1.6 rockers, Comp Cams Magnum 266HR, Explorer intake, 65mm TB, MAF Conversion, 19# injectors, Ford Racing stainless P-headers, 2-1/2" cat-less exhaust w/ Flowtech Afterburner lers , SC AOD with 2800 BDR torque converter, 3.73 T-Lok rear, CHE rear control arms, full 2-1/2" frame w/1" jacking rails & seat supports, Rear disk brakes, Turbine wheels, All original interior w/ floor shift upgrade .......
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Okay need help bad.

Reply #11
Definitely from the starter.
88 TC, Lots of Mods.


Okay need help bad.

Reply #12
Oh, and this is loud enough to make my buddies dog jump sideways, and he's a seasoned hunting hound.  (IE not gun-shy) :)
88 TC, Lots of Mods.


Okay need help bad.

Reply #13
Quote
I just heard the same thing from one of my co-workers....the starter does not ge enough voltage, so it kicks out, but doesn't stay all the way out. Is that accurate?
that was my issue. it was the ground cable leading to the block from the bat.
 
ever heard it when someone tries to start a car when its allready running, it sounded sort of like that.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Okay need help bad.

Reply #14
EXACTLY. 

I hear that this causes the bendix to jump out like it should but it doesn't have enough power to keep it out there.  Therefore, it doesnt engage fully!

Thanks, I'm checking htis tonight!
88 TC, Lots of Mods.