Volvo SX-M DP-SM Outdrive Trim Cylinder Rebuild

In this video, I rebuild my Volvo DP-SM trim cylinders with the kit from Ebay seller: volvopentasupplies. No affiliation! The rebuild process applies to all outdrives using the cylinders with Volvo part numbers: 3857471 & 3857470.

[@ScottHenke-ks7dp]

Used the same kit. Your video helped me to change the leaking o rings. The one smaller urathane o ring was the hardest to install. Put it all together and no leaks! Thank you.

[@briangilcher7927]

Great video, really helped me get this done! Thanks much for taking the time to create it.

[@SlideruleRacingProducts]

Glad it helped!

[@johngarlent5758]

Good solid workmanship.

[@jsboening]

Thanks for the video. I plan to do mine while it’s laid up this winter. My drive slowly drops while on the trailer. Not a ton, but it would be on the ground after a few weeks.

[@SlideruleRacingProducts]

Good luck! Glad my videos can help!

[@tonyflanders1272]

Thank you Chris for this great video i will be doing my cylinders soon

[@SlideruleRacingProducts]

Glad to help

[@jockestenberg7174]

Thank you for making and uploading this video. Very helpful!! Best wishes from Sweden.

[@SlideruleRacingProducts]

Glad it was helpful!

[@jockestenberg7174]

It was 👍 I'm wondering about how did you get the air out from the system? Thank you!

[@SlideruleRacingProducts]

@@jockestenberg7174 the manual documents a complex method of purging air by disconnecting the hoses at the cylinder, but I've found it is not necessary. Just running the cylinders up and down a few times and then maybe doing it again over the course of a few days seems to work all the air out.

[@jockestenberg7174]

Ok, thanks for the reply!

[@pedrogarcia5422]

I never a my 40-year career as a marine mechanic taking apart a Volvo trim Ram they just don't fail

[@SlideruleRacingProducts]

If they *never* failed, I'm pretty sure I wouldn't have 30,000 views. You should play the lottery or something!

[@eagle5720]

How much the rebuild kit cost cause I want to rebuild mines cause they won't stay trim up for too long while driving the boat

[@adsbadsb9488]

Hi, are these the parts from Bill Lawrence? Great video. Do you need sealer on the threads for the service caps, and new o ring where the lines go in the cylinders.? Thanks

[@SlideruleRacingProducts]

no sealer is needed because the cap has an o-ring. I replace the o-rings on the lines almost every time I disconnect them - cheap insurance.

[@user-xu7bp9wo4h]

Great video! I have the Volvo Penta DP-SM and need just the hydraulic hoses from the unit to the manifold. Where did you find your part numbers for the hoses? The DP-SM schematic doesn't list the hydraulic hoses on VPParts.

[@SlideruleRacingProducts]

THere are other schematics for those. later pump version: www.volvopentastore.com/Trim-Pump-Later-Version/dm/cart_id.841050792--session_id.385062888--store_id.366--view_id.789361

[@giuseppelucia2230]

Buonasera video interessantissimo come fare x acquistare stelo del pistone trim volvo dps sx m mi fate sapere Grazie

[@rreale]

Hello, I took my trim cylinders off and are going to have them rebuilt. I wish to make the outdrive go up another 2.5 inches. I believe the cylinders have trim limit spacers in them. For every inch of trim limit spacer removal, what is the translation to outdrive height. I have a DP-SM. thx

[@SlideruleRacingProducts]

If you watched the video, you can see the trim limit spacer in it. That whole spacer is not a whole lot longer than 3". I don't know the exact angle of my rams when in the extended position, but I'd hazard a guess that it's less than 45 degrees, so at the ram attachment point, even if you took the entire spacer out, the ram attachment point is probably not going to be 2.5" higher from a level plane. I'm not sure what part of the drive you want to be 2.5" higher but I'd guess the lower skeg? My suggestion is to remove the shaft between the rams and the drive. Prop the drive up to where you'd like it to be able to go, and then measure the distance between the 2 shafts that the ram attaches to. When you disassemble the rams, you can then easily measure how much you need to remove from the spacer to allow the ram to get to the length it needs to be - if it's even possible at all.

[@corralgang]

You said 400 hp? What engine do you have and is it turbo. I have vp 5.0 gxi-a that’s only 270hp w a dp sx drive.

[@SlideruleRacingProducts]

I have the 8.1 Gxi. No turbo.

[@paulainc]

Hi, My Volvo ram does not have the 4 holes to spin it off so I can rebuild it. I would I remove it?

[@SlideruleRacingProducts]

Best bet is probably to take it to a local hydraulics shop.

[@UtahDennis]

Chris, thank you for the very helpful video. My question is this. My Seloc repair manual for my 2005 Volvo Penta SX-M outdrive states that after installing a new or rebuilt trim cylinder, I should fill it with hydraulic fluid if it wasn't pre-filled PRIOR to the self-bleeding process. However, I haven't seen any video stating that this is necessary. If not...great! If it is, how in the heck to I get fluid into the trim cylinders? The only way that I would guess that it could be done would be to compress the cylinder as much as possible. submerge the two openings for the lines into a container of hydraulic fluid, and pull out the rod to draw the fluid into the cylinder. What is your recommendations?

[@SlideruleRacingProducts]

The way I've primed cylinders the last time I rebuilt them was that I connected hoses to each of the ports and routed them to a container filled with ATF fluid and then I worked the cylinder rod back and forth, tipping the cylinder appropriately to get the air pockets out of the cylinders. Good luck!

[@UtahDennis]

@@SlideruleRacingProducts Good deal. Thanks much for the tip.

[@doubleeh9265]

Hey what kind of caps did you cap your lines with when you pulled the cylinder off? What size are they? Assuming they're flare caps?

[@SlideruleRacingProducts]

I just used vinyl caps. It may drip out a little, but if you dont run the pump it's not too bad.

[@adsbadsb9488]

How do you bleed these when the boat has the old style pump that looked like w coffee cans no little gas tank reservoir for fluid.

[@SlideruleRacingProducts]

You can bleed them on the bench before installing. In fact, I did another set of these and bled them on the bench and it worked much better. Start by pushing the piston almost off of the way in before installing the cap. Then fill the cylinder with fluid and then install the cap. Then connect lines to the cylinder and run them into a bucket/container filled with fluid and manually pump the ram back and forth until no bubbles are coming out of the lines. Then install the rams in the boat. There will be virtually no air in the cylinders.

[@robincline3996]

I Bought the RK-5197 kit from Volvo, it was the same kit used in this video, but it also came with 8 small o-rings. I assume they are use in some way with the Springs and check balls ? Someone please confirm and advise where they go as My stock cylinders only have Springs, plungers and check balls. I do not see any tiny o-rings used in my assemblies

[@SlideruleRacingProducts]

Sounds like the o-rings for the hydraulic lines.

[@immoratality]

I am wondering if you have the model number to your pin wrench. I wanted to order the same one but there seems to be a few different kinds with different pin sizes.

[@SlideruleRacingProducts]

I have this one: www.ebay.com/itm/152172222442

[@immoratality]

@@SlideruleRacingProducts thank you

[@FaithisKey792]

I have the hydraulic lines leaking on the right side of the hydraulic oil reservoir. The plate cover with the hydraulic lines is leaking a white substance. I take it water for in. Now the trim tilt does not go up or down. Can you tell me what i can do please. I have the same out drive.

[@SlideruleRacingProducts]

Not moving could be electrical or hydraulic. You'd need to provide more information.

[@paulr.rickert9006]

Do you have a video for the reinstall (specifically the bleeding?)

[@SlideruleRacingProducts]

No, but I've been thinking about making another video showing how I bleed them. I've found much more success bleeding them in the shop before installing than when I tried to do it on the boat.

[@TheNickgee33]

Cannot find this rebuild kit online can you please help? Thank you

[@SlideruleRacingProducts]

www.ebay.com/itm/Volvo-Penta-Trim-Cylinder-Ram-REBUILD-KIT-SX-DPS-M-3857471-3857470-UPGRADED/231921156263?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

[@4-Runner]

Great video! Any idea on the torque setting for the bolt on the dampener?

[@SlideruleRacingProducts]

I could not find the spec anywhere so I just gave it a pretty good push. The threads are substantial, so I think it's unlikely you'd accidentally over tighten it to the point of a problem.

[@4-Runner]

@@SlideruleRacingProducts Thanks Chris. Just received the new seals from [e-mail]. The quality is great and they answered all my questions fast. Your video helped a lot too! Thanks again.

[@4-Runner]

@@SlideruleRacingProducts The new seals have held up great all summer long, but one concern is they are squealing pretty good when trimming either up or down near the lower half of the trim position. Did you have any issues like that? I confirmed it's not the pivot points where the rams connect to the drive unit.

[@SlideruleRacingProducts]

@@4-Runner Hi Brook, I didn't, sorry that I can't be more help.

[@4-Runner]

@@SlideruleRacingProducts No worries Chris. I'm going to pull them apart this fall just to confirm the seals are seated properly.

[@Cj032188]

Another question, what are you using to polish?

[@SlideruleRacingProducts]

I used a fine scotchbrite pad.

[@immoratality]

Do these cylinders self bleed

[@SlideruleRacingProducts]

They do by running the cylinders up and down. There are procedures to pre-bleed, but in my experience, it's not necessary.

[@russellcampbell76]

Wow, just skipped getting them off the outdrive!. Kind of an important part, from my perspective.

[@SlideruleRacingProducts]

Well, actually, I spoke to it in the Outdrive rebuild video I made, but here you go: 1. Remove plastic caps with screwdriver. If you aren't careful, you will break the plastic tabs! 2. Use small screwdriver to pry out 4 e-clips 3. Remove hoses from back of cylinders 4. Support Outdrive. 5. Remove shafts.. If your shafts are seized (mine were), then you're in for a bad day. I had to remove the entire transom mount so that I could press the seized shaft out with my press, heat and penetrating oil. Honestly though, if you can't figure this out without a passive aggressive comment to get a simple guide, you probably aren't going to be very successful rebuilding the cylinders. Good luck!

[@russellcampbell76]

@@SlideruleRacingProducts What you should be doing is referencing your other video that shows this in the comments you assign to the video. I get impatient with folks who can't link to other important info. That's what the Internet is all about. So, yeah, I get impatient, but, hey, you provided it now, along with your own snide remark. Thanks.

[@dirtrocket9]

do you have kit part number thanks?

[@SlideruleRacingProducts]

Sorry, I didn't have a kit number, just the seller. There are plenty of kits that mimic the OEM design from 5-star and others, but this was the only one that had the poly seals that I found.

[@Alexa-sk3pn]

Would it be easier to do this with one side of cylinders still attached

[@SlideruleRacingProducts]

The moment you disconnect the hoses, the other cylinder will collapse and shoot oil everywhere, so I wouldn't advise it.

[@Alexa-sk3pn]

I meant support the lower unit and leave the stationary side of cyclinders attached to the boat. Leaving the bottom of cyclinders attached and hoses still attached

[@SlideruleRacingProducts]

​@@Alexa-sk3pn Oh, I understand what you're poking at now. Well you could try to get the pistons out while the cylinders are attached to the drive, but you will have limited access with the pin wrench and you may have a difficult time getting the piston out with the cylinder wobbling around, but if your lower/inner piston mounting shaft is seized (as mine was before the rebuild), then it might be a better option. If you try it and it works out well, please report back!

[@immoratality]

@@SlideruleRacingProducts This is excatly what i have to do with mine as the bottom pin that holds both of the rams in place is seized pretty good. Let me know how it goes as I will tackling this project in May 2020

[@immoratality]

@@Alexa-sk3pn let me know how that works

[@Cj032188]

Do you have the part number for the kit?

[@SlideruleRacingProducts]

Five star marine sells a very similar kit on ebay with the seals that are designed like the original. I recently rebuilt another set of rams and could not find the same kit I used before, so I used the kit from Five star and the process is nearly identical except for the 3 piece seal vs 1 piece seal. Maybe I should do another video with their kit and how I primed the cylinders to purge all air...

[@FaithisKey792]

What o ring kit is this.

[@SlideruleRacingProducts]

It was on ebay from volvopentasupplies. No p/n. Not sure if he is still selling, but you can get OEM style seals from fivestarmarine ? (I think that's their store) and I've used those as well. Essentially the same process.

[@Neriovlogs925]

Hello Chris

[@Neriovlogs925]

I have a question