| Author | Message | ||
     Emptimind |
Hey all, I tried to do an XB conversion today, and now I'm gushing oil. I followed all torque specs in the service manual, and put in all new gaskets, what the hell did I do wrong? Took it all apart and put it all back together a second time to make sure I didn't miss anything, and it's leaking in the same spots. Front cylinder is leaking from every gasket, and rear is leaking from the one between the box and the head. Using the same rockers I had before, and there was only a small leak out the rear from where the seal was broken. So I don't see how it could've warped from me putting in new seals. Help please! | ||
| Kilroy |
Did you use ft-lbs instead of in-lbs | ||
| Reepicheep |
Did you get the HD gasket kit? They throw every gasket possible in there for multiple generations of Evo heads, with no instructions, and it can be really hard to tell which you are supposed to use. Maybe you used the wrong gasket... been there, done that. | ||
| Ratbuell |
Or you put the gaskets in upside-down. Yes, it matters. | ||
| Jramsey |
XB seals on the left,early style on the right.  | ||
| Emptimind |
I got the orange head to rocker solid rubber coated metals and put them front head up on the front, rear up on rear. The brown rubber seals with tabs down, and the white seals for the center. Didn't over torque, used an inch pound wrench and did any foot pound conversions I needed to. | ||
| Oldog |
did you clean any residue present off and have you checked clearance to be sure that nothing internally is hitting The brown and white items are for the older rocker boxes IIRC. (Message edited by oldog on May 17, 2013) | ||
| Reepicheep |
Emp, I think that is wrong. And I think its similar to what I did wrong. Just use the gaskets shown in the left on the picture above... None of the ones on the right. (Somebody correct me if I am wrong please... I worked it out on mine but forget which I ended up with, I just remember I used too many parts the first time...) | ||
| Emptimind |
It's an s3 with xb covers. When I asked on here about it folks told me to use the older tuber gaskets. | ||
| Jramsey |
Don't know who told you that but they're WRONG. The 17036-91A set above comes with seals to do either old style 3 piece or the 2 piece XL/XB covers. They both use the same coated steel shim between the lower cover and the head. | ||
| Emptimind |
So I need the orange xb ones? | ||
| Ratbuell |
You can "buy a tuber set"...but it includes the orange XB gaskets as well as the black tuber gaskets. Yes. You need to use the right gaskets. (Message edited by ratbuell on May 17, 2013) | ||
| Emptimind |
Okay, odd. I bought the rocker covers used and they had used gaskets, the same exact type I picked up from Harley. Which were the brown rubbers and white inners. | ||
| Dannybuell |
there are two XB rocker box versions the later are the gaskets on the left. My XB rocker box conversion was done over 10 years ago, the rocker boxes use the older gaskets. Alignment is everything, you need to get to eye level and poke and prod with a feeler gauge until perfectly aligned. did you get the new washers for the rocker box cover? | ||
| Emptimind |
Yeah, I poked and prodded all over. Got new washers as well. I hope you're all right that it's the gaskets, but the used gaskets that were still attached to the covers were the exact same as what I was using. | ||
| Jolly |
98s1W, converted to xb style rockers about 2 years ago, if that long...I used the ones on the right and not a single leak, in fact, I don't even think my kit came with the ones on the left... | ||
| Emptimind |
Alright, so the gaskets I'm using have worked for others? If that's true, then what else could be wrong? | ||
| Preybird1 |
If it is like the X1 you need 2 of the steel rubber coated orange ones. part#16800-84A for head against rocker box And the 2 black ones and the 2 white gaskets from the kit on the right. The brown one is for the lower rocker box part containing the umbrella valves. That section will be deleted with the gasket all together. If it is the same as the X1 is. Also the only way you can screw this up is if you loosen the lower rocker box(s) while they are under valve tension. This can twist the aluminum. But even thnit is still hard to screw up. Sounds like the wrong gaskets are in place. On a plus note!! It will be really easy to do again!!! Since you have already done it before. JK it is aggravating but that job is not hard to do again. | ||
| Bigslug |
Have you checked the clearance between the front motor mount and the top cover? Both of my bikes needed a notch filed into the cover or they hit the motor mount. Also I have always used the old style gaskets and the only leak I have had was when the gasket moved out of the groove during assembly. Mike | ||
| Jolly |
+1 to Bigslug, the front cover needs to be filed down on a corner. the kit that Al sells has this already done so I forgot about that step. | ||
| Loki |
I guess I get to figure this out for myself shortly. | ||
| Emptimind |
Front corner grinded down to fit. Wasn't able to get it on before I did. Pretty sure my gaskets stayed in the grooves both times. I can see the rubber all around the edges. Nothing is crumpled or folded. This is frustrating. Far as I can tell, I've done everything right first and second time, but it's clearly telling me I haven't. | ||
| Bsanorton |
I just did the conversion and am leak free. The proper gaskets that were suggested on this site and also by HD are the ones on the right in the picture posted. The inner gasket is the white/clear one also shown. I had a little trouble with the rear cover until I tried from a different angle and no grinding needed. My pic below of the brown ribbed gasket that fits nicely in the groove.   Also my leak turned out to be between the cover and the head so that was replaced as well. Those get brittle. You can see the oil pooling where the gasket cracked in two places on the rear head. Good luck.  | ||
| Emptimind |
Well, I don't know what else to try. Gaskets have been reset three times now, all torque values appropriate. Scraped the living crap out of the boxes and around the head where the old gaskets had fused. Do I just need new boxes? Or is there another option I haven't found yet? | ||
| Kevmean |
Did you just replace the top two original sections with the new single piece XB type or did you remove the complete rocker assembly as well? .......... If you replaced the complete assembly did you follow the correct procedure as to having the cylinder at TDC before slackening off the rocker box and also the correct procedure for allowing the hydraulic tappets to bleed down as you tightened the rockerbox again? If not you may well have warped or damaged something. | ||
| Littlebuggles |
+1 on Kev's question, from your description it sounds like maybe you've still got three pieces there, conversion deletes top two layers of the tuber rocker boxes. Post pictures so we can see where you're at and we'll be more help to you as well. | ||
| Emptimind |
Only rocker and cover, and I took my spark out and rotated the rear wheel in fifth until the push rods were in their lowest position before I removed or replaced the boxes. If there was another step needed there I may've missed it. | ||
| Kevmean |
Still slightly confused here as to what exactly you have changed. if you removed the complete rocker assembly ( that is the only time you need to position engine correctly ) then you need to replace the gasket on top of the head as well with the new style metal gaskets, looking at the photos aove the metal gasket is not part of the rocker COVER kit. | ||
| Emptimind |
I didn't buy a kit. None of the photos are mine. I bought individual seals. Got the rubbery coated metal ones, the brown between box and covers, the inner whites and the black pcv ones. | ||
| Littlebuggles |
Still, if you pulled the whole rocker box off instead of just removing the top two and replacing with the XB covers, it would explain why you are loosing oil out the top. There is a metal gasket that goes between the head and the lower rocker box. They used to use a paper one that would crack, if you still had a paper one in there and pulled the lower rocker box off it needs to be replaced with the upgraded part. Can you post pics or email pics to one of use to post for you so we can properly assist you in diagnosing your bike's problem(s)? |
