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hi guys first post here. I’ve gotten plenty of information from these forms, but I’m pulling my hair out thinking what’s the problem. I bought this 86 inline 6 been having start up issues since the get go. I’ve replaced and got a new battery, new starter solenoid, new map sensor. New nuetral saftey switch, new alternator( that’s not charging, but that’s another problem) the truck is currently parked at my church and I just want to be able to get it home. This is the 3rd starter that I’ve put in the last month. I’m hearing it wind up and it’s been tested okay from the part store. I’m wondering if this plate that’s bent a little is preventing the starter sitting in there properly and not catching the flywheel? Any incite would be great. Thank you.
Make sure there is no dirt or anything under that plate. Otherwise yes it should smash down when the starter is tightened down.
Like Max said, what is it doing exactly? Use words like "clunk clunk", "whining", "scraping", Make sure to tell the difference between the engine turning and not starting, or the engine is not even turning when the key is turned. The more detail the better.
Make sure there is no dirt or anything under that plate. Otherwise yes it should smash down when the starter is tightened down.
Like Max said, what is it doing exactly? Use words like "clunk clunk", "whining", "scraping", Make sure to tell the difference between the engine turning and not starting, or the engine is not even turning when the key is turned. The more detail the better.
like I said this is the 3rd starter. Last Tuesday I put in other one. When you crank the key it just makes a high pitch winding. Today the only thing I did different was move the wire from the (-) terminal to the bolt on top like the wiring diagram shows and it was able to get me home.
like I said this is the 3rd starter. Last Tuesday I put in other one. When you crank the key it just makes a high pitch winding.
Where are you getting these starters? All replaced under warranty? Some of the new house brand units at discount chains are pure Chinese junk right out of the box. Most lifetime warranty remans aren’t much better, usually just new brushes and a fresh coat of paint.
Are you positive it’s the correct application? I think the starter is different whether a manual or auto transmission. That could explain the starter not properly and consistently engaging the flywheel ring gear.
The index plate doesn’t appear to be the problem. All it does is locate the starter side to side. As long as the starter is tight against the bellhousing, it should be okay.
If the starter acts up again, crawl underneath and try shaking the forward end (away from flywheel) before replacing it. If the bolts are working loose, the starter will wiggle around.
I don't like that gap on that plate. It may be nothing or it may be the problem. I would investigate that more. If it was a piece of dirt or something under that plate, when you tighten down the starter bolts it would point the starter away from the flywheel. Good pictures, they speak a thousand words.
If it was a piece of dirt or something under that plate, when you tighten down the starter bolts it would point the starter away from the flywheel.
On second thought, I don't know if that gap under the plate is an issue. Hard to understand how it ever got so bent up.
Where the plate is bent, what's immediately on the other side inside the index hole for the starter? Is the bellhousing right there, to make a tight sandwich? Or does the plate hang inboard over a ledge, so it's possible for a misaligned starter to push on the face of the plate and twist it? If the plate was twisted enough, it's possible the starter is not being properly indexed, and is too far away from the crankshaft centerline.
Look for wear marks on the index plate and starter nose casting. This should help determine if the starter nose is getting properly centered in the hole.
Looked at this picture a little closer. The wear pattern shows the gear teeth are barely meshing. With a good gear mesh, the shiny spots should be about halfway down the valleys between the peaks. Instead, the pattern shows the teeth are barely catching at the top.
Suspect either you've been repeatedly sold the wrong starter (gear too small) or the starter is not being properly positioned by the index plate.
On second thought, I don't know if that gap under the plate is an issue. Hard to understand how it ever got so bent up.
Where the plate is bent, what's immediately on the other side inside the index hole for the starter? Is the bellhousing right there, to make a tight sandwich? Or does the plate hang inboard over a ledge, so it's possible for a misaligned starter to push on the face of the plate and twist it? If the plate was twisted enough, it's possible the starter is not being properly indexed, and is too far away from the crankshaft centerline.
Look for wear marks on the index plate and starter nose casting. This should help determine if the starter nose is getting properly centered in the hole.
The one spot there is something solid for the starter to press against, and there is a gap. On the side toward the engine, there is nothing there but the sheetmetal.
The one spot there is something solid for the starter to press against, and there is a gap. On the side toward the engine, there is nothing there but the sheetmetal.
Made a new ground on the frame. (-) from battery, then onto top bolt of starter mount screw. New 1 awg wire from solenoid to starter. New wire from ground on frame to top mounting bolt. Far as I can tell no gap’s when bolted. New distributor cap, new sparks, new wires. New solenoid and new battery. The extra white wires are me running them into the cab. I’m using them as test points on my multimeter to read voltage on battery. I was troubleshooting my alternator problem. (That’s been solved since then )
I need to pick some of your guy’s brain. so far I’ve put in a new battery, new starter solenoid, new ignition switch, new neutral safety switch. (Used to have to start the truck by turning the key, and then push in a button mounted under my steering that would jump the starter.) new spark plugs, spark plugs wires, new distribution cap. Then tonight I decided to replace all new wiring to the battery. All the new wires are 1 awg, heat shrink over the connector ,then wrap electrical tape of the heat shrink. Went to go start the truck. I turn the key on and all I get is the same sound that sounds like the starter is engaging (loud winding sound) but it doesn’t want to turn over. I have had the truck for a month now and this is so far the 3rd starter now, they have all been tested good at the part store and all have had started great for a few days or two, then out of nowhere it just starts making them at engaging sound without turning the flywheel over. I’m just stuck with this problem and I’m running out of ideas 😢😢. Any advice would be helpful thanks guys.
Last edited by TGiordano87; Oct 6, 2022 at 03:25 AM.
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