Velvet dip stick |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Now that the dipstick has been resolved
Seeing as I have all this out of boat, should I rebuild the Velvet Drive? When I bought the boat I never had a chance to drive because stringers were so bad. I have looked for rebuild in forums but can't find, still not asking the right way I guess. Thoughts and Suggestions Thanks JT |
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wheedle
Newbie Joined: February-22-2019 Location: Seattle Status: Offline Points: 6 |
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If you have something to spin it with, you can test it. Keno has talked about using a pto off of a tractor.
I have read this before, but have yet to rebuild mine. https://www.mastercraft.com/teamtalk/showthread.php?t=53874 |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Very good info, think I will rebuild as I have it out of boat.
Thanks |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Why jump to conclusion that it needs rebuilt?? I think lake testing would be my choice. But first drain the fluid out and look for debris. If it does not show a lot of metallic particles and or chunks then chances are good that it is OK. Rebuilds are not the easiest thing to do. Get a manual and review it. There is a video on Master Craft forum that is very helpful also. Some special tools and an arbor type press are needed for the clutch pack. Seals and gaskets don't constitute a rebuild.. One of our senior members was going to report back to me what a "full rebuild" consists of but I can't seem to find that post. Good luck |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Motor and tranny are out of boat sitting in barn...... |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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OK, I and others have rebuilt them. If you need assistance it is only a "post" away
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Keep it as original as YOU want it
1978 Mustang (modified) |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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John,
Good advice from Duane. Drain and pull the suction screen at the bottom of the case looking for debris. If it looks good, don't open it up. I have 54 years on a velvet at it still runs like new. |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Don't be too surprised if the screen is missing. Some have been tossed. |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Don't expect the price to be the same as this one was. |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Ok before I just start unbolting things , where is this drain plug and screen located |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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John, The screen will be behind the cooling line (hose) fitting towards the bottom of the case. |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Will check it tomorrow, if it warms up going down to 35 (WTF in Florida) tonight.
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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Here in the link below is how a real backyard hack would test his transmission ,(partway down the first page). You can at least see that it spins in fwd and reverse and check pressures in fwd and reverse too with a couple of gauges. Duane, I see some words about what a rebuild is or isn't from that senior member you refer to in the same linked thread link |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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A little light reading from the reference section of CCF in the link
Page 54 has strainer info If you have a 10-17, it's a later version of the 71C and most of the same info applies. You can find later manuals that also cover the 10-17 but not in the reference section of CCF link |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3749 |
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The tranny is like an automatic. Fiber Plates inside squeezed between Metal plates when you engage. There will be material in the oil. These are very durable tranny's and easy to repair when broken so I would vote for use it after installing new fluid. Run it a while and install new fluid again just to make sure it is clean and ready for long term use.
I made the mistake of using my reverse as a brake in a panic stop and broke mine. the clutch plates fractured. It was not hard or expensive to fix it. I was 20 years younger then so maybe it would be heavier and harder to do now. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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But Mark, using reverse on a boat are the brakes. Is there another way to slow a boat? |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Speaking of reverse...
Is this a reverse rotation engine. I looked for a tag but I guess when the PO did all his crap to this engine took it off. It is a 351w PCM I'm guessing as it is painted a gold color???? Also while removing the alternator it wasn't hooked to anything , so it is probably wrong also.... |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Take a pic of the prop. Or if it is an ACME prop then post the part # |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3749 |
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Pete, going to neutral probably would have been just as quick of a stop but I was rolling at 40mph coming around a blind curve in the river to find 4 boats coming at me head on, one jet boat cut hard right for some reason which put us on a collision course. I went for panic stop, avoided any collisions but scared the poop out of me. We avoided contact by about a foot, no more. My reverse at full throttle came from many years driving jet boats, the technique worked much better in them. Blew the clutches right apart in the velvet drive.
I still had enough forward gear to make it back to the dock without reverse. Fixed it in one day in my garage. They are pretty tough. |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Guessing you only broke the reverse clutch disc and then it lost mesh. Should not hurt anything else. (other than your pride)
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Keep it as original as YOU want it
1978 Mustang (modified) |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11112 |
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You could pull the plugs and distributor cap and turn the engine from the harmonic balancer bolt. From the front turn it CCW and if the rotor turns CCW you have a reverse rotation engine. That'll be a definite way to tell without having to make any assumptions |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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I think I make out a XX RH 13????
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Speaking of props, what is the difference in a 3 blade and a 4 blade (I have on my 79)
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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75 Tique
Grand Poobah Joined: August-12-2004 Location: Seven Lakes, NC Status: Offline Points: 6130 |
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Pete, I am guessing by context and how he said it, he wasnt braking for a nice gentle stop while idling into the dock. I get the sense it was a pretty quick 35 to 0 in 15 feet kind of stop. |
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_____________
“So, how was your weekend?” “Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.” |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Was wondering if the 4 blade will work on the 83 |
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Well theoretically a one blade prop will “work” . What you need to ask what prop would be best for my boat and my use.
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Back to the tranny , I took this out , it is just a metal tube no screen.
Is the correct part to drain and check? If so I saw no debris in the fluid although ( drained it though a paper towel filter) it looked a little dark. That being the case might just keep as is and replace fluid and see how it runs once I get boat back. |
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Duane in Indy
Platinum Member Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Told ya so |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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jterr
Gold Member Joined: February-13-2018 Location: N. Florida Status: Offline Points: 621 |
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Where can I find that hose and fittings in picture? That fitting is rusted pretty bad and I can't get it to thread back down into the tranny, as it is binded up at the top of elbow.
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