Backfired and stopped running
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
Ohh are you talking about the tab that one of the screws goes in? I assumed that was a ground. I definitely put that back correctly whatever it does. Dont forget, This car was running with the new cap.
Last edited by octaneforce; Sep 9, 2014 at 04:46 PM.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
You have fuel pressure, you have a good spark,injectors are pulsing,timing is good, no way this car should't fire up... Damn do you put that dizzy the right way in? Sure is the base timing good? Wires ? Mismatched?once i was stranded by my 85,i had 12 v at dizzy but no spark it was the ignition module that was gone un 1k miles... Cheap quality dynaspark from Ecklers
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
As you described you put it in the right way,sometimes some guys put it back 180 degrees wrong... it's a common mistake with a dizzy,do you try to play with advance while cranking?may be your balancer slipped and you trying to set timing with a mark all the way out? since your bad noise from the front...seems like this bad boy is out of timing
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
As you described you put it in the right way,sometimes some guys put it back 180 degrees wrong... it's a common mistake with a dizzy,do you try to play with advance while cranking?may be your balancer slipped and you trying to set timing with a mark all the way out? since your bad noise from the front...seems like this bad boy is out of timing
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
http://www.bing.com/images/search?q=...ectedIndex=471
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
yes you will use a few extra words but if you have a good puller not to fat and you bolt the puller tight against the balancer use a very short driver bolt it will come,
but as soon as the balancer gets loose remove the puller (you will need the space) and wiggle the balancer out.
if you do not have a balancer installer you will need one
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
yes you will use a few extra words but if you have a good puller not to fat and you bolt the puller tight against the balancer use a very short driver bolt it will come,
but as soon as the balancer gets loose remove the puller (you will need the space) and wiggle the balancer out.
if you do not have a balancer installer you will need one
but as soon as the balancer gets loose remove the puller (you will need the space) and wiggle the balancer out.
if you do not have a balancer installer you will need one
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
but hear is a brighter side if your intake is leaking oil or coolant and the front of the motor off it would be a good time to swap out the cam and reseal the intake. also if your chain is wiped the cam may be a little worn.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
it's too bad that you are having to go there, and after the effort I kind of hope your hunch is correct.
but hear is a brighter side if your intake is leaking oil or coolant and the front of the motor off it would be a good time to swap out the cam and reseal the intake. also if your chain is wiped the cam may be a little worn.
but hear is a brighter side if your intake is leaking oil or coolant and the front of the motor off it would be a good time to swap out the cam and reseal the intake. also if your chain is wiped the cam may be a little worn.
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Can the cam slide out while the motor is in the car? And then i would have to take the heads off and push rods and lifters bla bla bla. Is this motor hydraulic or solid lifters? Dont get me wrong id love to throw a lumpy cam in there but money and time are crucial. Every autox event that i miss is painful!
as for pulling head I don't see any reason you would but to redo, as for the cam at most the radiator and carefully lift the a/c
Last edited by s carter; Sep 9, 2014 at 09:03 PM.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
Usually new cam means new lifters, doesnt it? If its as simple as sliding the old one out and the new one in, then im on board.
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
New Cam = New Lifters as a set remember all wear that the cam got who gave it to it HUUUMMMM ???? I know the lifters. and I forgot to answer the hydraulic/solid lifter question. hydraulic
you may also need to at least loosen the oil pan because sometimes that front cover can be a bit of a pain to get back on, you don't totally have to plan on it but it is out there.
I will admit this is going to another level but it would be the time to do it.
Last edited by s carter; Sep 9, 2014 at 09:47 PM.
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
Octane i would just wait and ceck deeply before start wrenching hard,cuz i can't belive this issue is mecchanical/hardware related,i think it's more an electrical issue.Just for peace of mind ,do you read any code from aldl? May be your new dizzy fail?do you drop the new unit as a one piece out of the box? i don't want to number stupid mistakes,but,are the wires in the right firing order?how about spark plugs.i had an issue once ,after a week of garage, i tried to fire it up and no start,short story i messed with everything inside the engine bay (ignition related)had the car flooded by my attempts to fire it up....nothing... extrema ratio just for piece of mind i changed the plugs (that was good before) and this bad beast fired up like a dragon!i hope you can fix it soon and back on the road bro
Last edited by tunedport85inject; Sep 10, 2014 at 04:29 AM.
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Octane i would just wait and ceck deeply before start wrenching hard,cuz i can't belive this issue is mecchanical/hardware related,i think it's more an electrical issue.Just for peace of mind ,do you read any code from aldl? May be your new dizzy fail?do you drop the new unit as a one piece out of the box? i don't want to number stupid mistakes,but,are the wires in the right firing order?how about spark plugs.i had an issue once ,after a week of garage, i tried to fire it up and no start,short story i messed with everything inside the engine bay (ignition related)had the car flooded by my attempts to fire it up....nothing... extrema ratio just for piece of mind i changed the plugs (that was good before) and this bad beast fired up like a dragon!i hope you can fix it soon and back on the road bro
thier are many componants under that hood,you have sensors so before doing major work on your car, take another look do all tests on the Dist. including reastblishing TDC Knowing your on compression stroke. I would hate for you go put a grand and a week under the hood and still have the same problem, so give one more well planned look
Last edited by s carter; Sep 10, 2014 at 09:36 AM.
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
I got pissed off after work today just staring at this car and started to tear it apart. Timing marks appear to line up but the chain has a bit of slack in it. It wasnt THAT hard to get to the timing chain. It needed a water pump anyway. About to donate this thing.
http://youtu.be/1xuxQjP1cVE
Wires are not mixed up, dizzy was installed correctly and i dont think it is defective because i have spark. I can even remove the plugs and watch the spark arc about 3/4 inch when i hold it close to the valve cover. Whats left? The ecm?
http://youtu.be/1xuxQjP1cVE
Wires are not mixed up, dizzy was installed correctly and i dont think it is defective because i have spark. I can even remove the plugs and watch the spark arc about 3/4 inch when i hold it close to the valve cover. Whats left? The ecm?
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
I got pissed off after work today just staring at this car and started to tear it apart. Timing marks appear to line up but the chain has a bit of slack in it. It wasnt THAT hard to get to the timing chain. It needed a water pump anyway. About to donate this thing.
http://youtu.be/1xuxQjP1cVE
Wires are not mixed up, dizzy was installed correctly and i dont think it is defective because i have spark. I can even remove the plugs and watch the spark arc about 3/4 inch when i hold it close to the valve cover. Whats left? The ecm?
http://youtu.be/1xuxQjP1cVE
Wires are not mixed up, dizzy was installed correctly and i dont think it is defective because i have spark. I can even remove the plugs and watch the spark arc about 3/4 inch when i hold it close to the valve cover. Whats left? The ecm?
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
well the timing chain and timing are a know now, and now we also know that engine ware is not bad so unless you have a bad case of motivation I would leave old lumpy on the job, but since you are only 3 bolts from a timing chain I would replace. on a side you can get a cam advance/retard timing chain sprocket to give more bottom end torque, but that would be messing with things. also lumpy money can fund the ECM
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
it doesn't change the size of anything. it just has three different choices of cam advanced to ran retarded one setting gives off the line jump but can reduce top end. and so on so lets not screw with things leave were it belongs
Thread Starter
Instructor
Joined: Jan 2013
Posts: 212
Likes: 0
New timing chain and gears, even a new water pump because i was in there. Car is re assembled and i replaced the ecm under the dash. Switched in the old prom. STILL NO START. does the EXACT same thing. Just occasional pops through the intake. I also realized that somebody has replaced this computer before. Whats next? Im really bummed about this.