Velvet Drive 71C rebuilt testing. Selector Valve issue

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Even minor scratches in the surface of the selector valve can cause a clutch pack failure ..........................................................................................................Velvet Drive and ZF Marine Service Center. I offer free advise on many marine transmissions. Feel free to call me at 804-333-3677 or email at sales@halemarine.com. I am a second generation transmission specialist with over years forty years experience repairing Velvet Drive, ZF, Paragon, and Hurth transmissions.........................................................
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Опубликовано:

6 ноя 2019

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Комментарии : 33

@petergeen2198 4 года назад

Its unbelievable how such fine scratches can make such a difference to performance. Thanks for posting video.

@remopoesinger3513 3 года назад

Wooow im impressed about all your videos velvet drives! Hear you soon, since im overhauling mine soon

@christiantmorgan 3 года назад

Hello i just bought a 1992 ski nautique with 351 and pcm-40 transmission 1:23/1 ratio. Transmission seems to be engaged in gear and cant get it to go i to neutral. I haven't had the boat in the water yet doing work to it and it sat for a long time vut tranny dip stick has clean fluid and doesnt smell burnt. Any clue what the deal is or and pointers would be great thanks

@regbrink3150 3 года назад

Could these scratches cause the shifter to be stiff when moving between F-N-R?

@halemarine5991 3 года назад

Yes especially when the transmission heats up

@dailystupidandinterestingv7794 3 года назад

How much do you charge for rebuild on these? Recent lost reverse in the middle of our last lake day

@halemarine5991 3 года назад

www.halemarine.com/index.php?main_page=product_info&cPath=1_18&products_id=2364

@sesekinikarocks 4 года назад

I have a 10-17-004 with low pressure at all times. (75psi neutral, 60psi reverse, 60psi forward) at idle. I have slight scratching on my selector valve just like this one. Could that cause a loss of pressure? Thanks for your time!

@halemarine5991 4 года назад

If you have scratches on the Selector Valve the bore will scratches also. Hone out the bore and replace the the Selector Valve. If the bore doesn't smooth out than it's time for a replacement transmission.

@sesekinikarocks 4 года назад

HaleMarine could scratches between the two ports like in your videos cause low pressure in neutral as well? I only have scratches between the two ports just like this video.

@halemarine5991 4 года назад

The other place that might cause low pressure is where the output shaft goes through the Case housing. Sealing rings or the case itself could be wore

@andyburris4717 Год назад

I have a 71c. What would cause my Trans to build enough pressure to blow the dipstick out? Mine blew out tonight so hard that it sounded like a gunshot when it hit the dog box. Rebuilt it last summer and until this happened it hasn't gave me any trouble.

@halemarine5991 Год назад

The vent or an overheating issue. Maybe fluid level is possibility?

@andyburris4717 Год назад

@@halemarine5991 is there anyway I could send you a picture of the Trans fluid? I don't see any metal shavings in it, but it looks like may have water in it. So maybe Trans cooler is cracked? Not sure how it would have got cracked it's brand new and I drained it when I winterized the boat

@halemarine5991 Год назад

If the transmission fluid is pink it has water in it

@andyburris4717 Год назад

@@halemarine5991 it's not really pink but it's not exactly red either. It's almost like a purple color. Ive seen water in Trans fluid before but never seen it look like this. Possibly burnt?

@halemarine5991 Год назад

Overheating will cause a darkness to the red transmission fluid

@danmartin6523 4 года назад

Hey! I have a 1017 004. What should pressure be in neutral, forward, and reverse? Thank you

@halemarine5991 4 года назад

150 PSI in all postions

@danmartin6523 4 года назад

Thank you! At what rpm?

@halemarine5991 4 года назад

@@danmartin6523 Our tesat stand only turns up 537 so all RPMs

@danmartin6523 4 года назад

Thank you!

@zacatecano1986 3 года назад

What is the spec on pressure for forward and neutral and reverse ? How much does it cost to get some answers on the phone ? I can paypal you .

@halemarine5991 3 года назад

150 psi is main line pressure call anytime between 9AM and 3PM Patreon link: www.patreon.com/user?u=57019567&fan_landing=true

@zacatecano1986 3 года назад

@@halemarine5991 alright man thank you

@brotherdom1 3 года назад

Hi im from Ireland i have two borg warner boxes .I dont have tags near gear leaver but model numbers on the bottom side of each .10-05-065-901 this has a 15 degree v box attached .Can you tell from that number what the ratio is .The second box has no tag either and the number is 10-04-065-905 and im hoping you can tell me the ratios of each by the details shown.Happy Xmas to all and stay safe .

@halemarine5991 3 года назад

The casing numbers mean nothing to me. The only way to check the ratio is toddler the Vdrive from the transmission section and spin the input shaft, counting how times the output turns.

@brotherdom1 3 года назад

@@halemarine5991 Thank you .Im a shipwright and not a mechanical engineer .Could i ask you if i turn it by hand will it be good enough or do i need to get it up to 40 cycles ? minute as some guy mentioned to me .But no one is sure.Again Have a peaceful and joyus christmas to you and all of your family and friends .Keep safe and we will see this thing off soon .

@halemarine5991 3 года назад

@@brotherdom1 Hello again. Use a large electric drill. Thid will give you the RPM needed to apply the clutch plates. The cooling lines need to be connected and fluid in the transmission. Merry Christmas to you as well!

@brotherdom1 3 года назад

@@halemarine5991Last call ..In your first message you mention toddler ..I assume that means split from transmission.Cheers

@halemarine5991 3 года назад

@@brotherdom1 Yes seperate the V-drive from the transmission section

@halemarine5991 3 года назад

Here a link:www.halemarine.com/index.php?zenid=mjk3bp9kdd822jf20mqij9bfh0&main_page=advanced_search_result&keyword=71-a244a&search_in_description=1&categories_id=&manufacturers_id=&pfrom=&pto=&dfrom=&dto=&x=0&y=0