| Author | Message | ||
     Kalali |
Alert to potential buyers that the Front Isolator kit L1501.8 is still missing the so called "snubber" washer. You'll have to order L0503.T separately. | ||
| Onespeedpaul |
got a pic or diagram? i just installed my L1501.8 kit today, seemed pretty complete as per the instructions. | ||
| Onespeedpaul |
annnd, just confirmed. yes the American Sport Bike #17025-B kit (which is also pretty clearly marked L1501.8) has that specific 'snubber' washer. | ||
| Jramsey |
Snubber washer is "built in" on the retro-fit kit.(-79D H-D part) Any 3/32" thick flat washer will work. Its just used to take up the space of the original "D" washer. | ||
| Purpony |
I just installed this new kit from american sport bike and mine just used a plan washer on the top. I was guessing that the "snubber" was built into the new one.... | ||
| Kalali |
Well, Al (at American Sport Bike) was smart enough to include the snubber in the kit that he sells. If you order the "kit" either directly from HD or in my case from LSHD, that part is not included. The pictures in the instruction sheet that comes with the kit do show the snubber. So are you guys saying that with the new design the snubber washer is not needed? I thought it was more than just to fill the space, i.e., support the bottom of the iso, etc. | ||
| Purpony |
mine came with everything pictured here....  | ||
| Hootowl |
The kit I bought from American Sport Bike was in a sealed parts bag from HD. I don't think anything was added. I suppose they could have stuck a washer in there and then resealed the bag. If they did, they did a fine job. Looked factory. | ||
| Onespeedpaul |
same here, sealed bag. and according to the included instructions, it goes on the bottom for a 'notched' steering bead frame. worked great for me, i'm elbow deep in doing the rears, and totally forgot to put the belt on!! so back off the swinger came, it's back in now tho with the belt... | ||
| Hootowl |
"and totally forgot to put the belt on" LOL, I think we've all done that. It's a rite of passage. | ||
| Purpony |
im doing my rears tonight... hopefully i remember the belt... | ||
| Onespeedpaul |
when you get your rears done, post up how low the large allen bolts go? it may just be an optical illusion, but mine look like they're so low to be digging into the rubber. if you see it you'll know what i mean. | ||
| Hootowl |
That's normal. That way the weight of the frame pushing down on the isolator doesn't make the rubber contact the bolt and tear. Gives it extra room to flex. | ||
| Kalali |
"I don't think anything was added." Hmmm. I'm wondering then if HD finally got it right and started including it in the kit. My "sealed" bag certainly did not have it. Oh well, I'll just have to order the part from my local dealer or try a local hardware store. I'm assuming the diameter of the washer is the same as the bottom/flat side of the isolator. | ||
| Hootowl |
I thought the flat side was the top for tubers? Maybe I misread the directions...I haven't installed it yet. | ||
| Kalali |
Could someone take a picture of one (the bottom is easier) installed to put this to rest? | ||
| Harleyms |
I just installed mine, flat side on top, washer between the isolator and the front engine mount(mine's "notched")...works like a charm I have the old one with the D shaped washer, still looks like new as well, I just thought that it would be a good thing to replace while I had the upper end apart. (Message edited by harleyms on May 12, 2011) | ||
| Kalali |
The old design did not have a washer between the iso and the mount. I'm guessing the snubber washer distributes the load more evenly across the surface of the mount. | ||
| Ft_bstrd |
How does this washer look once installed? Mine seems to look funny to me. It doesn't lay flat against the bottom of the isolator. The top of the engine mount isn't flat, so my washer sits at the same angle as the mount rather than flat against the bottom of the rubber isolator. Is this right? Torque was to specs. | ||
| Kalali |
"...The top of the engine mount isn't flat.." I stepped out and looked at my ISO again and saw the angle you mentioned. So the load distribution theory now makes no sense. It would have made more sense to have the snubber on the flat top but it looks like they already have molded a washer into the ISO where the D-washer used to sit. I'm now beginning to consider installing mine without the snubber washer unless someone can explain its purpose. | ||
| Jramsey |
>>>without the snubber washer unless someone can explain its purpose. "...The top of the engine mount isn't flat.." The engine mount is flat, just not parallel with the Iso's mountings surface. The front of the Iso will be compressed about .060 more than the rear. I noticed this miss-alignment about 2-1/2 years ago when I started experimenting with the -67D Iso's. Design flaw or a jig/fixture error IMO. One of the oem heavy washers goes under the bolt head and the other between the Iso and the Iso mount, any decent washer can be used on top of the Iso, because its only there to take up the space of the discarded D washer.  | ||
| Jramsey |
"it may just be an optical illusion, but mine look like they're so low to be digging into the rubber." Not an optical illusion the rear Iso holes are offset for some reason,Big Twin part originally IIRC. Offset is .170 to be exact. Here's a pic of a rear Iso with a stiffener in place to show the offset.  | ||
| Kalali |
"The engine mount is flat, just not parallel with the Iso's mountings surface." Perfectly said. That's why the snubber sits at an angle. Anyway, I'll be heading out to the garage to put it in as soon as I finish my first cup of coffee... | ||
| Kalali |
Well, I'm done. Picked up a comparable "snubber" size washer from Home Depot for 20 cents. A couple of observations. Contrary to my expectation the snubber ended up perfectly sandwiched flush with the bottom surface of the ISO and the top surface of the mount. Also the center bolt is noticeably smaller size than the earlier design and the torque values are also lower; 35 vs. 60 for side bolts and 70 versus 110 for the center. All in all, it was a pain in a butt and I hope I don't have to do it again. |
