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Car Forum / Volvo Cars / January 200589 740 GL starter just spins
The other day I had problems starting it up, had to repeatedly crank many times. a couple of time I heard the engine kind of "lock up" abnormally, stalling the starter motor temporarily, then while still holding the starter engaged, it pulled on through the locked/stalled condition and continued to crank. After this happened a couple of times, then the starter would no longer rotate the engine, you just hear it spinning, as if there is no load on the starter at all. It sounds like the bendix/relay isn't pushing the starter pinion out any more....or the pinion got stripped out. I tried jumping the battery from another car in case it was low voltage causing the problem, but it does the same thing. So I pulled the starter out, but the pinion looks fine. I connected it to a jump-starter and checked it, it operates fine...the pinion gear pushes out all the way, and it spins up fine. I put a ratchet on the damper and manually rotated the engine and flywheel all around, watching the flywheel teeth. They look fine. The engine sure isn't seized up, although it sounded that way before the starter failed entirely. It rotates easily with a ratchet, and the crankshaft is okay since the flywheel is turning. So I don't see why the starter is not turning the engine over....unless maybe under load the starter is slipping. Maybe the pinion is loose and slips under load? Do automotive shops have some way to dynamically check a starter? Ideas what's wrong? > The other day I had problems starting it up, had to repeatedly crank many > times. a couple of time I heard the engine kind of "lock up" abnormally, [quoted text clipped - 16 lines] > pinion is loose and slips under load? Do automotive shops have some way to > dynamically check a starter? Ideas what's wrong? The problem has got to be the starter if the flywheel teeth look fine. Get a "new" one from a scrapyard and save yourself some trouble down the road. Supposedly the older larger diameter starters used on '87(?) and earlier cars are more robust. > The other day I had problems starting it up, had to repeatedly crank many > times. a couple of time I heard the engine kind of "lock up" abnormally, [quoted text clipped - 17 lines] > slips under load? Do automotive shops have some way to dynamically check a > starter? Ideas what's wrong? Failure to engage is usually loss of lubrication in the bendix. It sounds like it is within your DIY range to disassemble the bendix and grease it up. Another thing to check would be the engine ground and the battery cables. Replacement of the starter is a problematic second way to go. I don't know what the price of a genuine Volvo starter is, but aftermarket starters and alternators have earned a bad reputation. Mike > Failure to engage is usually loss of lubrication in the bendix. It sounds > like it is within your DIY range to disassemble the bendix and grease it up. [quoted text clipped - 3 lines] > what the price of a genuine Volvo starter is, but aftermarket starters and > alternators have earned a bad reputation. Buying a new one is just plain silly, even online they're several hundred dollars. I've rarely had trouble with $13 junkyard starters, though a word of advice, it's quite a bit easier to remove one from a car with a manual transmission. >> Failure to engage is usually loss of lubrication in the bendix. It sounds >> like it is within your DIY range to disassemble the bendix and grease it [quoted text clipped - 11 lines] > of advice, it's quite a bit easier to remove one from a car with a manual > transmission. Good idea, James. The conventional wisdom for operating parts is to favor pulling them from a car that has fatal body damage, since you can be sure it worked before the car was smooshed! Mike Most Volvo starters are solenoid operated. which means that the fork end of the lever which pushes the pinion into engagement has broken and does not push the pinion into engagement although it operates the contacts for heavy current to spin the motor. Exchange starters are not that expensive and come with a guarantee. In UK they are less than ?100 if you go to an electrical specialist like Lucas-CAV or Bosch. Cheers, Peter. >> The other day I had problems starting it up, had to repeatedly crank many >> times. a couple of time I heard the engine kind of "lock up" abnormally, [quoted text clipped - 28 lines] > > Mike >Failure to engage is usually loss of lubrication in the bendix. It sounds >like it is within your DIY range to disassemble the bendix and grease it up. I doubt any cars had a bendix gear by '89. All 740s have pre-engage starters.  SignatureStewart Hargrave For email, replace 'SpamOnlyToHere' with my name > >Failure to engage is usually loss of lubrication in the bendix. It sounds > >like it is within your DIY range to disassemble the bendix and grease it up. > > I doubt any cars had a bendix gear by '89. All 740s have pre-engage > starters. The starters back at least as far as '79 240 are identical and interchangeable with those in 700 and 900 series cars, I don't think Volvo ever used a started with a Bendix, and certainly not in the OHV redblocks. > The other day I had problems starting it up, had to repeatedly crank many > times. a couple of time I heard the engine kind of "lock up" abnormally, [quoted text clipped - 16 lines] > pinion is loose and slips under load? Do automotive shops have some way to > dynamically check a starter? Ideas what's wrong? You state that you are able to turn the engine with a ratchet but did you remove the oil filler cap & see if the camshaft is also turning ? what is the mileage on the car ? It is possible that the timing belt teeth have worn off these are all things to also check before removing the starter & replacing Glenn Volvo Technician ASE Certified Signature"*-344-*Never Forgotten" Is for the New York City Firemen who lost their lives on September 11,2001. The official count is 343, but there was also a volunteer who lost his life aiding in the initial rescue efforts. And I will never forget them as long as I live, nor should any American. "Mow Green" > > The other day I had problems starting it up, had to repeatedly crank many > > times. a couple of time I heard the engine kind of "lock up" abnormally, [quoted text clipped - 25 lines] > Volvo Technician > ASE Certified None of those problems will prevent the engine from turning over, which he stated it does not do. Exactly right....I have to replace that starter, even though there is nothing obviously wrong, because although the pinion was going all the way forward when I tested it out of the car, for some reason it would not engage and turn the flywheel, even though the engine can be rotated by hand easily. This engine has about 220 K miles on it and the starter looks OEM. I was doing good to get that much life out of it, I suppose. I had just degreased the engine because there is an oil leak somewhere (probably the valve cover) on the engine. Rinsing it off got the ignition (distributor probably) too wet, and so I had to crank, crank, crank... and spray everything with LPS-1 trying to get it to start. Guess that is what FU-bar'ed the starter. >> > The other day I had problems starting it up, had to repeatedly crank > many [quoted text clipped - 44 lines] > None of those problems will prevent the engine from turning over, which he > stated it does not do. > Exactly right....I have to replace that starter, even though there is > nothing obviously wrong, because although the pinion was going all the way [quoted text clipped - 6 lines] > probably) too wet, and so I had to crank, crank, crank... and spray > everything with LPS-1 trying to get it to start. Guess that is what Oil leaks are often the valve cover or the camshaft seal, but check the flame trap first, it becomming plugged is the leading cause of oil leaks in the first place, it can blow a seal out and cause a REAL bad leak. Did the pinion spin with the motor or did it just push into engagement without rotating? The pinion has to be keyed to the shaft for it to rotate with the shaft. The solenoid fork engages in a slot in the pinion body so that the pinion can rotate while the solenoid fork stays still. Best way is to exchange at a shop who specialise in auto electrical parts or take pot luck with one from a scrapper. Cheers, Peter. > Exactly right....I have to replace that starter, even though there is > nothing obviously wrong, because although the pinion was going all the way [quoted text clipped - 63 lines] >> he >> stated it does not do. > > > The other day I had problems starting it up, > > >I put a ratchet on the damper and manually rotated the engine and > > > flywheel all around, watching the flywheel teeth. They look fine. and the camshaft does exactly what? A toothless or broken cam belt makes the starter seem as if it's not turning the motor. Do any of the pullies on the front of the motor turn? Bob > > > > The other day I had problems starting it up, > > >I put a ratchet on the damper and manually rotated the engine and > > > > flywheel all around, watching the flywheel teeth. They look fine. > > and the camshaft does exactly what? A toothless or broken cam belt makes > the starter seem as if it's not turning the motor. Do any of the pullies > on the front of the motor turn? How's that? It's pretty obvious looking under the hood if the motor is turning or not, I'm quite sure he's verified that to be the case. I've cranked a motor with no compression before and while it spins much faster, it sounds very different than a starter not engaging. > > > > The other day I had problems starting it up, > > >I put a ratchet on the damper and manually rotated the engine and > > > > flywheel all around, watching the flywheel teeth. They look fine. > > and the camshaft does exactly what? A toothless or broken cam belt makes > the starter seem as if it's not turning the motor. Do any of the pullies > on the front of the motor turn? How's that? It's pretty obvious looking under the hood if the motor is turning or not, I'm quite sure he's verified that to be the case. I've cranked a motor with no compression before and while it spins much faster, it sounds very different than a starter not engaging. |
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