Damper Plate
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48020
Printed Date: March-06-2025 at 7:45am
Topic: Damper Plate
Posted By: schultz227
Subject: Damper Plate
Date Posted: September-07-2019 at 3:51pm
| 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 |
Replies:
Posted By: Gary S
Date 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? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: MrMcD
Date 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. ------------- |
Posted By: 8122pbrainard
Date Posted: September-07-2019 at 8:30pm
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And the firing order you are using? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: KENO
Date Posted: September-07-2019 at 8:43pm
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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Posted By: KENO
Date 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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Posted By: Gary S
Date Posted: September-07-2019 at 9:48pm
 ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
KENO wrote:Posted By: schultz227
Date Posted: September-07-2019 at 9:49pm
| 351 with the 123:1 tranny Mallory ignition . Parts came from oreilly and are supposed to be marine specific . |
Posted By: schultz227
Date Posted: September-07-2019 at 10:02pm
| 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 |
Posted By: Gary S
Date Posted: September-07-2019 at 10:11pm
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Do you have the O'Reilly's part number for the flywheel? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: KENO
Date 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? |
Posted By: Gary S
Date Posted: September-07-2019 at 10:14pm
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slipping.... ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: KENO
Date 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 |
Posted By: schultz227
Date Posted: September-07-2019 at 10:22pm
| Correct , no load |
Posted By: schultz227
Date Posted: September-07-2019 at 10:37pm
| Also there under load obviously |
Posted By: schultz227
Date Posted: September-07-2019 at 10:37pm
| Shifts like butter no rattles |
Posted By: KENO
Date Posted: September-07-2019 at 10:49pm
| Brand, part number of flywheel ? |
Posted By: schultz227
Date Posted: September-07-2019 at 11:29pm
| Don’t have it , mechanic has it and not responding tonight |
Posted By: 8122pbrainard
Date Posted: September-07-2019 at 11:38pm
Kyle, What's he saying about the problem? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: schultz227
Date Posted: September-07-2019 at 11:50pm
| 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 |
Posted By: schultz227
Date Posted: September-07-2019 at 11:51pm
| 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 .. |
Posted By: schultz227
Date Posted: September-07-2019 at 11:54pm
| 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 |
Posted By: Gary S
Date 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. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: schultz227
Date Posted: September-08-2019 at 12:10am
| Does it take the 28oz ? Or 50 ? |
Posted By: KENO
Date Posted: September-08-2019 at 8:01am
28 oz. |
Posted By: KENO
Date 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 |
Posted By: nitro scott
Date 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. ------------- 1973 Ski Nautique Tow boat |
Posted By: schultz227
Date Posted: September-10-2019 at 1:49am
| 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 |
Posted By: KENO
Date 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 https://www.rockauto.com/en/catalog/ford,1967,mustang,4.7l+289cid+v8,1332313,transmission-manual,flywheel,5348" rel="nofollow - link |
Posted By: KENO
Date 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 http://www.correctcraftfan.com/forum/forum_posts.asp?TID=41052&title=how-many-teeth" rel="nofollow - link Or if you're asking at the parts store, use the same 67 Mustang with a 289 |
Posted By: KENO
Date Posted: September-10-2019 at 8:48am
No automotive application Since you're not the original poster just to avoid confusion, he (schultz227) has a PCM transmission that takes a plate only available from PCM and you (nitro scott) can use an aftermarket plate with your Borg Warner transmission. Search here on CCF for damper plate and you'll get plenty of results. Or start your own thread to avoid confusion
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Posted By: schultz227
Date Posted: September-10-2019 at 11:08am
| He’s saying we can put a harmonic balancer on the front ? I have no clue and if he’s trying to cut corners I want to know |
Posted By: 8122pbrainard
Date Posted: September-10-2019 at 11:17am
Kyle, The harmonic balancer and damper plate are two separate items. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: KENO
Date Posted: September-10-2019 at 11:26am
Well, since you asked...................Yes, he's trying to cut corners He got you the wrong flywheel, which you may not need to begin with if only the teeth on the ring gear are chewed up because of your starter issue like mentioned above. He's trying to avoid the time spent pulling the transmission and bellhousing again to replace the mistake and then the reassembly takes time again too. Basically trying to avoid doing the job over His way will be a pretty much guaranteed nightmare |
Posted By: schultz227
Date Posted: September-10-2019 at 11:31am
| He ordered from the parts store ,67 mustang 289 with 4 speed and he says no guarantees.. I hope this is the correct one . |
Posted By: schultz227
Date Posted: September-10-2019 at 11:34am
| I have the 123:1 tranny Not borg Warner just FYI |
Posted By: KENO
Date Posted: September-10-2019 at 11:35am
It'll work But..............what's wrong with the old flywheel itself? Not the ring gear, the flywheel |
Posted By: KENO
Date Posted: September-10-2019 at 11:38am
Same flywheel and ring gear but uses a different damper plate than the Borg Warner. If you had the wrong damper plate you couldn't put the thing back together |
Posted By: Gary S
Date Posted: September-10-2019 at 11:43am
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That's where I was going when I asked what was wrong with the original flywheel when I asked in the second post. But I never got an answer. This guy is a clueless part changer. Is it too much to ask where did he order the second flywheel and it's part number since he confused and now offers no guarantees? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: KENO
Date Posted: September-10-2019 at 11:47am
Quit sugar coating it Gary, say what you really think
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Posted By: schultz227
Date Posted: September-10-2019 at 11:50am
| Pioneer 157 tooth W163 that’s ordered from oreilly |
Posted By: KENO
Date Posted: September-10-2019 at 12:02pm
It'll work
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Posted By: Gary S
Date Posted: September-10-2019 at 12:11pm
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Could not find it on O'Reilly but Summit did have it's spec's ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: TRBenj
Date Posted: September-10-2019 at 12:19pm
You’re not wrong... but to add to the confusion, the current PCM 1.23 (80a) uses the same damper as the BW. There may be some family ties in the cc/Pcm/velvet drive family. The legacy pcm 1.23 (40a) that ZF built is the one with the different damper. Like ken alluded to, you cannot undo an improper flywheel balance by changing the harmonic balancer on the front of the engine. BOTH need to match the balance of the engine’s rotating assembly. |
Posted By: 8122pbrainard
Date Posted: September-10-2019 at 12:19pm
No sugar coating, he's a backyard hack! Kyle, Where did you find this "mechanic"? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: KENO
Date Posted: September-10-2019 at 2:09pm
I did some learnin' today. Thanks for that info TRB
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Posted By: KENO
Date Posted: September-10-2019 at 2:39pm
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I'm still wondering what happened to the original flywheel
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Posted By: schultz227
Date Posted: September-10-2019 at 5:05pm
| He’s got it , I’ve suggested taking the new ring gear and putting it on the old flywheel but he says it has to go to another shop of some sort to swap it and I’ll have more money in that or some bull **** |
Posted By: gun-driver
Date Posted: September-10-2019 at 5:05pm
| https://www.summitracing.com/parts/atp-za503 |
Posted By: 8122pbrainard
Date Posted: September-10-2019 at 5:10pm
He doesn't have a torch to heat the gear? That's all it takes!
------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: TRBenj
Date Posted: September-10-2019 at 5:21pm
| Geez. Have done that swap on the dock with a little map torch. |
Posted By: KENO
Date Posted: September-10-2019 at 6:27pm
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Being naturally a little on the cheap side, I'd return both the flywheel that wasn't right and the new one that he just ordered and just get a new 157 tooth ring gear for 20 to 25 bucks or so.(with tax) Same application 67 Mustang with a 289 and a 4 speed (some parts listings don't have the right number but an ATP ZA 503 or Pioneer FRG 157N are two good numbers to use or cross reference) Then put it on the old original flywheel. If your mechanic hasn't replaced a ring gear before, it'll be a good learning experience for you and him
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Posted By: Gary S
Date Posted: September-10-2019 at 6:45pm
Fire the old BBQ and throw it in there for 5min a side  ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: schultz227
Date Posted: March-27-2020 at 5:06pm
| UPDATE Put the new ring gear on the old flywheel, runs great.. new damper plate also.. wasted a lot of time as he had to do the job twice.. so glad I was insistent on taking it apart and using the correct flywheel as he wanted to counter balance it on the front or some s*** Thanks guys for helping me out here. Gave me some knowledge so I didn’t just do whatever he was telling me.. |
Posted By: 8122pbrainard
Date Posted: March-27-2020 at 5:13pm
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Kyle, Glad we were able to help and it's now running like it should. I'd say it's time to find another mechanic!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: schultz227
Date Posted: March-27-2020 at 5:33pm
| I know, my local Nautique dealer will not work on my boat due to its age... ever hear of such a thing? Lol |
Posted By: Nautiquehunter
Date Posted: March-28-2020 at 10:23am
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1st problem Mechanic without the knowledge to work on your boat. 2nd problem O'Reilly auto parts a good place for oil ,wiper blades or air fresheners. Not so good for real parts. Refer to 1st problem. |