rcl700 Posted April 22, 2023 Report Posted April 22, 2023 Looking at this 230s crank I'm wondering how the flywheel bolts up. The rear crankshaft is not threaded and this flywheel is not either. Is it bolted with a nut on the rear of the crank flange? Quote
TodFitch Posted April 22, 2023 Report Posted April 22, 2023 For 1933 and, I believe, all the later engines the flywheel is held on with bolts. And the bolt head is toward the engine side. If I recall correctly, it is not possible to get the bolts into the holes of the crank with the engine all buttoned up. I recall having to remove the rear main bearing cap to be able to get the bolts through the holes. But since the only reason I had for removing the flywheel was to work on the rear main seal that was not an issue. 1 Quote
Sniper Posted April 22, 2023 Report Posted April 22, 2023 Yes, it uses a nut and bolt setup. Here's what the bolt looks like https://www.moparmall.com/MoPar-PN-871685-Flwheel-Bolts-p/825-551_(x4).htm Here are the part numbers 871685 bolt 120383 lock washer 675594 nut 2 Quote
rcl700 Posted April 22, 2023 Author Report Posted April 22, 2023 1 hour ago, Sniper said: Yes, it uses a nut and bolt setup. Here's what the bolt looks like https://www.moparmall.com/MoPar-PN-871685-Flwheel-Bolts-p/825-551_(x4).htm Here are the part numbers 871685 bolt 120383 lock washer 675594 nut You are the man! Thanks Sir So the bolt needs to go in the back of the crank flange then the nut on flywheel side? Or flip flop? Quote
Sam Buchanan Posted April 22, 2023 Report Posted April 22, 2023 (edited) 1 hour ago, Sniper said: Yes, it uses a nut and bolt setup. Here's what the bolt looks like https://www.moparmall.com/MoPar-PN-871685-Flwheel-Bolts-p/825-551_(x4).htm Here are the part numbers 871685 bolt 120383 lock washer 675594 nut The flat on the heads of those bolts fit against the crankshaft flange to keep them from turning while you torque the nuts. Nuts are on the flywheel (aft) end. The crank is rotated so the bolt closest to the floor can be inserted. Edited April 22, 2023 by Sam Buchanan 1 2 Quote
rcl700 Posted December 30, 2023 Author Report Posted December 30, 2023 On 4/22/2023 at 3:50 PM, Sniper said: Yes, it uses a nut and bolt setup. Here's what the bolt looks like https://www.moparmall.com/MoPar-PN-871685-Flwheel-Bolts-p/825-551_(x4).htm Here are the part numbers 871685 bolt 120383 lock washer 675594 nut Revisting this topic. I think I'm going to try and get this motor running on a stand prior to installing in the car. Does the oil pan need to be removed to get the crank bolts in place? Quote
Sam Buchanan Posted December 30, 2023 Report Posted December 30, 2023 (edited) 8 minutes ago, rcl700 said: Revisting this topic. I think I'm going to try and get this motor running on a stand prior to installing in the car. Does the oil pan need to be removed to get the crank bolts in place? Yes so the rear crankshaft bearing cap can be removed to provide clearance to insert the bolts. Edited December 30, 2023 by Sam Buchanan Quote
rcl700 Posted December 30, 2023 Author Report Posted December 30, 2023 (edited) On 4/22/2023 at 3:50 PM, Sniper said: Yes, it uses a nut and bolt setup. Here's what the bolt looks like https://www.moparmall.com/MoPar-PN-871685-Flwheel-Bolts-p/825-551_(x4).htm Here are the part numbers 871685 bolt 120383 lock washer 675594 nut I looked up these parts and was able to find the bolts through AB but nothing for lockwasher and nuts. Is this something I need to grab from Ace hardware? Grade 5 ? 8? Edited December 31, 2023 by rcl700 Quote
TodFitch Posted December 31, 2023 Report Posted December 31, 2023 The bolt and nut part numbers look to be special for the application. But the lock washer part number 120383 is just a standard lock washer. See: https://www.ply33.com/Parts/group18#120383 Quote
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