Great video. I'm waiting on a replacement starter I just ordered and was thinking about bench testing the old one once it was out just for fun. It looks like a cheap one and I'm replacing with new (not reman) Bosch since it seems these work a little harder (on cold days, flooded, etc.) than starters on fuel injected cars so I wanted something reliable. I'm pretty sure I'll find the solenoid is still good which I'll confirm when I do this. That will be worth keeping anyway since those sometimes go out before the starter motor. Anyway thanks for the video man!
Thanks for watching and I appreciate the comment! There is a huge difference between the cheapy starters and the original Bosch units. I have a cheap one on my pipe frame buggy and it makes a very loud whine when cranking. Even when it was brand new. It definitely lacks the torque of the Bosch
I was a rebuilder for 20 years they sell a cheap plastic test cone that centers the starter like in the bell housing.when the back bushing and brushes get some wear it really shows up when the fronts not centered .
The second starter you are testing is likely running slow and making the grinding noises because you don't have the exposed shaft supported by anything -- its normal supporting bearing is in the transmission bellhousing, mating with the end of the exposed shaft. So without the bearing, that side of the motor's armature is resting on the housing magnets, and will rub/grind against them when you power up the starter -- obviously not an accurate or recommended way to test this type of starter! Test both starters in the transmission bellhousing for a legitimate & accurate comparison.
This is a quick test to evaluate junk cores you may find in a large parts lot. This weeds out if they seem strong or if they’re frozen up. A more accurate test could be done later in a transaxle with better ones. I acquired over 50 starters in a parts lot and this weeded out the ones that went to the scrap yard vs ones kept for further evaluation.
Todays auto parts sell repaired starters as remanufactured, when there just repaired, years ago we rebuilt them our selves,todays techs don’t really know how they really work, sad
You do realize that you're never supposed to run a manual trans starter without it being installed. Not having the shaft supported will tear things apart inside
Not going to be an issue for the very limited time this test is being performed. They test these every day in factories and repair shops on a bench setup without a starter bushing. But if you have concerns, just don’t do it
Great video. I'm waiting on a replacement starter I just ordered and was thinking about bench testing the old one once it was out just for fun. It looks like a cheap one and I'm replacing with new (not reman) Bosch since it seems these work a little harder (on cold days, flooded, etc.) than starters on fuel injected cars so I wanted something reliable. I'm pretty sure I'll find the solenoid is still good which I'll confirm when I do this. That will be worth keeping anyway since those sometimes go out before the starter motor. Anyway thanks for the video man!
Thanks for watching and I appreciate the comment! There is a huge difference between the cheapy starters and the original Bosch units. I have a cheap one on my pipe frame buggy and it makes a very loud whine when cranking. Even when it was brand new. It definitely lacks the torque of the Bosch
I was a rebuilder for 20 years they sell a cheap plastic test cone that centers the starter like in the bell housing.when the back bushing and brushes get some wear it really shows up when the fronts not centered .
I’m going to look for one of those. Do you have a good source for one? Thanks for the comment.
@@MaineMachinist go to a local auto electric rebuilder they should sell u one they are plastic with a bushing in them not expensive
@@tombray3169 there’s a good one in a town near me. I’ll take a drive over and see if I can pick one up. Thanks!
Good working bro 😊
Thanks for watching!
👍
Thank you!
The second starter you are testing is likely running slow and making the grinding noises because you don't have the exposed shaft supported by anything -- its normal supporting bearing is in the transmission bellhousing, mating with the end of the exposed shaft. So without the bearing, that side of the motor's armature is resting on the housing magnets, and will rub/grind against them when you power up the starter -- obviously not an accurate or recommended way to test this type of starter! Test both starters in the transmission bellhousing for a legitimate & accurate comparison.
This is a quick test to evaluate junk cores you may find in a large parts lot. This weeds out if they seem strong or if they’re frozen up. A more accurate test could be done later in a transaxle with better ones. I acquired over 50 starters in a parts lot and this weeded out the ones that went to the scrap yard vs ones kept for further evaluation.
Todays auto parts sell repaired starters as remanufactured, when there just repaired, years ago we rebuilt them our selves,todays techs don’t really know how they really work, sad
I feel like every generation were losing hands on skills
You do realize that you're never supposed to run a manual trans starter without it being installed. Not having the shaft supported will tear things apart inside
Not going to be an issue for the very limited time this test is being performed. They test these every day in factories and repair shops on a bench setup without a starter bushing.
But if you have concerns, just don’t do it
@@MaineMachinist Just something I was taught by an old auto electric guy years ago. He said to never run them unsupported.
😂