Upgrading Slash for BL

[BrianG]

Well, the upgrades are complete.

To get around the "big bore" shock issue, I added a piece of heatshrink tubing to the shock and used Slash spring retainers. The heatshrink was the perfect thickness to take up the slack on the top retainer.

The only things left to do:

- Come up with a decent way to seal the diff so I can tune it. There was an article in an R/C mag I saw at the LHS that describes how to do it. Basically, you dremel down the outdrive raised part flush with the rest of the diff. Then, countersink the outdrive hole and put an 8th scale o-ring in there. The o-ring should stick out as far as the original raised section that was dremeled off. Then add a thin shim, then outdrive bearing. To seal the diff cover, some RTV silicone. I have an extra diff that I'll be trying this on. But I'll wait to actually replace it until the existing diff goes out.

- Change the top shock mounting scheme. I want to replace the shoulder bolts with long bolts/nuts and use some type of spacer/shim to use in the shock cap.

But she's running now and am quite happy. Even with punch control at 70%, timing = low, and start power = low, it still has too much power for those Slash tires. Perfect!

[rootar]

Originally Posted by BrianG

- Come up with a decent way to seal the diff so I can tune it. There was an article in an R/C mag I saw at the LHS that describes how to do it. Basically, you dremel down the outdrive raised part flush with the rest of the diff. Then, countersink the outdrive hole and put an 8th scale o-ring in there. The o-ring should stick out as far as the original raised section that was dremeled off. Then add a thin shim, then outdrive bearing. To seal the diff cover, some RTV silicone. I have an extra diff that I'll be trying this on. But I'll wait to actually replace it until the existing diff goes out.

where?????? i wanna see it ive just been filling mine with 3k and 7k and then after a month or so ill pull it out and wipe out the tranny and fill it again......makes it handle worlds better. but if there is a way to keep it in there longer im all eyes and ears.

[BrianG]

Originally Posted by rootar

where?????? i wanna see it ive just been filling mine with 3k and 7k and then after a month or so ill pull it out and wipe out the tranny and fill it again......makes it handle worlds better. but if there is a way to keep it in there longer im all eyes and ears.

Can't remember exactly. The guy at the LHS said he remembered seeing it in some "Xtreme RC" mag (or something like that). He flipped through several mags before he found it.

[MetalMan]

Originally Posted by BrianG

- Come up with a decent way to seal the diff so I can tune it. There was an article in an R/C mag I saw at the LHS that describes how to do it. Basically, you dremel down the outdrive raised part flush with the rest of the diff. Then, countersink the outdrive hole and put an 8th scale o-ring in there. The o-ring should stick out as far as the original raised section that was dremeled off. Then add a thin shim, then outdrive bearing. To seal the diff cover, some RTV silicone. I have an extra diff that I'll be trying this on. But I'll wait to actually replace it until the existing diff goes out.

A friend/coworker is coming over to my "shop" today, and we are going to modify his Slash diff in this exact fashion. If there's time we might get around to modding the diff in my Rustler but that's not so important.

Do you have a drill press Brian? I think that will make drilling the countersunk hole a lot more precise.

[ZippyBasher]

[QUOTE=MetalMan;243150]A friend/coworker is coming over to my "shop" today, and we are going to modify his Slash diff in this exact fashion. If there's time we might get around to modding the diff in my Rustler but that's not so important.[QUOTE]

Mind Taking a few snapshots? Mine Unloads badly after about 5-10 packs through it. you can even see the grease on the output yoke bearing. Horrible... Thank you Sir.