Boats For Sale:
Damper Plate |
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schultz227 
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Joined: August-20-2019 Location: Indiana Status: Offline Points: 49 |
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 Topic: Damper PlatePosted: September-07-2019 at 3:51pm |
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Replaced the damper plate now it revs up very rough not under load , any thoughts on alignment? 1,000 in on this project and the boat runs rough Needed a new flywheel because of starter problem . Replaced the damper and the rear main seal too . Any help appreciated so frustrating
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Gary S
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Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: September-07-2019 at 4:00pm |
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What engine, where did you get the flywheel? What was so wrong that it needed to be replaced?
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MrMcD
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Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3778 |
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Posted: September-07-2019 at 8:25pm |
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How about some details. What engine are you working on? Ford, Chevy?
Some flywheels are for an internally balanced engine, some are for external balance. You need to know more to get good answers. |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: September-07-2019 at 8:30pm |
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And the firing order you are using?
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KENO
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Posted: September-07-2019 at 8:43pm |
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And while you're at it...........your favorite color, the name of your first pet and the street you lived on as a kid
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KENO
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Posted: September-07-2019 at 8:46pm |
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It looks like you have a 92 SNOB with a 351W.
Does it have the ProTec ignition system or a regular distributor. And there's a reason for asking that
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Gary S
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Posted: September-07-2019 at 9:48pm |
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schultz227
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Posted: September-07-2019 at 9:49pm |
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351 with the 123:1 tranny Mallory ignition . Parts came from oreilly and are supposed to be marine specific .
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schultz227
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Posted: September-07-2019 at 10:02pm |
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Firing order wasn’t messed with , it ran smooth as silk before the work . Shifts in and out of gear like butter . When you rev the engine in comes the vibration
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Gary S
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Posted: September-07-2019 at 10:11pm |
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Do you have the O'Reilly's part number for the flywheel?
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KENO
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Posted: September-07-2019 at 10:13pm |
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Would you know the brand and part number of the flywheel?
So when you rev it up in neutral (no load) you get the vibration? |
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Gary S
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Posted: September-07-2019 at 10:14pm |
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slipping....
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KENO
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Posted: September-07-2019 at 10:21pm |
We're just thinking alike, I'm not as speedy as you today though I was distracted looking at some Monty Python stuff |
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schultz227
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Posted: September-07-2019 at 10:22pm |
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Correct , no load
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schultz227
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Posted: September-07-2019 at 10:37pm |
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Also there under load obviously
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schultz227
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Posted: September-07-2019 at 10:37pm |
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Shifts like butter no rattles
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KENO
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Posted: September-07-2019 at 10:49pm |
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Brand, part number of flywheel ?
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schultz227
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Posted: September-07-2019 at 11:29pm |
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Don’t have it , mechanic has it and not responding tonight
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8122pbrainard
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Posted: September-07-2019 at 11:38pm |
Kyle, What's he saying about the problem? |
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schultz227
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Posted: September-07-2019 at 11:50pm |
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He’s telling me it can’t be the damper plate because it all was installed as it came off in the same bolt pattern or whatever as the old one . He did put a carb kit on it as I had a major leak at the accelerator pump
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schultz227
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Posted: September-07-2019 at 11:51pm |
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Friend of mine did the damper plate on his 88 and says it was the same thing with the bad vibration and he got what he called a Sachs plate and it was better ..
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schultz227
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Posted: September-07-2019 at 11:54pm |
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So in review he put a carb kit on , new flywheel not just ring gear , rear main seal, damper plate .. and starter ... ran beautifully before all this except for the starting issue and carb leak but it ran smooth
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Gary S
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Posted: September-08-2019 at 12:01am |
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What I'm thinking and I suspect Ken too is that the wrong flywheel may have been used. Fords are externally balanced- there are two different imbalances 28 oz and a 50 oz,so a flywheel part number if/when you can get it would help.
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schultz227
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Posted: September-08-2019 at 12:10am |
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Does it take the 28oz ? Or 50 ?
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KENO
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Posted: September-08-2019 at 8:01am |
28 oz. |
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KENO
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Posted: September-08-2019 at 8:18am |
So now you get around to mentioning something else that was done at the same time like a carburetor kit that maybe should have been mentioned in the first post Easy enough to have a rough running engine due to some carburetor issues. Not knowing what this "roughness " is like without being there, I think I'd be looking at the rebuild job on the carburetor if the flywheel is the correct 28 oz imbalance |
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nitro scott
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Joined: September-02-2019 Location: crosby Status: Offline Points: 8 |
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Posted: September-10-2019 at 1:31am |
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Is there an automotive application for a damper? Are they easy to get. Mine is looking a little worn.
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1973 Ski Nautique Tow boat
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schultz227
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Posted: September-10-2019 at 1:49am |
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Wrong flywheel, he tells me the counterweight on the new one was twice the size of the original , thank you very much for the advice . Asking him to double check the flywheel saved us lots of headaches. Thank you again
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KENO
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Posted: September-10-2019 at 8:16am |
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If you want the right flywheel from an automotive application ask the parts guy for a flywheel for a 67 Ford Mustang with a 289 and a 4 speed.and you'll have the right 28 oz. imbalance
Here's a link showing a few part numbers from aftermarket suppliers link |
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KENO
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Posted: September-10-2019 at 8:33am |
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I get the feeling that you could use the old flywheel with a new ring gear based on your description of having "starter problems"
If just the teeth are chewed up, get a 157 tooth ring gear and replace the old gear. It's a lot cheaper too Here'a a link to a thread with some ring gear part numbers in a post by GaryS link Or if you're asking at the parts store, use the same 67 Mustang with a 289 |
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KENO wrote: