| Author | Message | ||
     Shawns |
Well...Still not sure if its the pump is part of the problem. According to ECMSPY I have 60psi at 4000 rpm. According to the manual thats within specs. The rear cylinder head is definitely a problem. One of the valves I can see through the throttle body is not moving not sure which is which. if your on the bike it's the right valve. The 2 I can see on the front cylinder move freely. WTF. | ||
| Panshovevo |
If you can see both intake valves moving in the front cylinder, but only one moving on the rear cylinder, that's definitely a problem... Broken cam finger, broken cam, wiped out lobe... I assume the valve is closed, or it would run like crap at all rpm. | ||
| Shawns |
Working out a deal with Paul for a set of heads. I have't tried to pull the cover off yet. I figure I would have to rotate the motor for that. I hope this is the extent of it. What would cause this? Could the previous owner not done valve services? | ||
| Smoke |
don't have to rotate for the rear valve cover or to pull head. pain in the butt to remove header though. real big problem if you have the race header. tim | ||
| Panshovevo |
You'll likely know more when it's apart. What are you doing with the old heads? I might be interested in buying them if the price is right, and you're not using them as trade material. | ||
| Shawns |
Don't know yet. I will keep you in mind. | ||
| Stirz007 |
Shawn - Just pull the valve cover and verify whether cam follower(s) is broken. I'm thinking it probably is. Refer to my earlier post for root cause. You'll have to set rear cyl TDC (procedure described in Service Manual), then look for witness mark on cam gear - if it isn't parallel with top of head, then it has slipped time. Mine slipped just enough that intake valves barely slapped piston. No need to replace heads - I did replace valves, guides, retainers just in case though.   (Message edited by Stirz007 on August 30, 2015) | ||
| Shawns |
Motors coming out now. Rear valve cover bolt under shock mount won't come out. Stripped it so nothing to bite on. FML. | ||
| Panshovevo |
Shawn, any chance of using an alternative method of removing the bolt, like a hammer and small chisel, or maybe a left hand drill bit? | ||
| Shawns |
I'm going to try a chisel tonight. Problem is, it's not a straight shot. | ||
| Shawns |
Yep...Busted. Couldn't get the cover off with the way it is sitting.  | ||
| Stirz007 |
That sucks. PM me if you need help working through this. You should pull the head to see the extent of valve damage. You're going to need to borrow the cam and crankshaft locking tools to reset cam timing. DO NOT replace followers and reassemble - you will promptly break your new followers - yeah, I know this for a fact. I have a couple of extra followers if you have trouble finding some quick. Be sure you recover all the follower bits - if not, may have lost them further down (I was lucky and all the pieces were in the head). You have the service manual? Cost of parts (as I recall, about a year and a half ago) Head gasket about $50, followers about $40 each. The follower shaft is $75 (which is stupid expensive for what it is). (Message edited by Stirz007 on September 01, 2015) | ||
| Panshovevo |
Shawn, how many miles on the motor, and how often did it approach redline? Just wondering what caused them to break. It would be wise to follow Stirz07's advice and check for valve to piston contact and cam timing. I'd be tempted to check the front cylinder also, maybe get the cam fingers Magnafluxed if they look okay. | ||
| Shawns |
Never redlined it, but I purchased it used so who knows what the po did or didn't do. I am replacing both heads and I'll toy with the originals when I have time. Stirz007 I have a crank locking tool around here somewhere. I just hope I can find all the pieces. I am ordering new gaskets and such so hopefully this goes easy. Usually not that way for me tho. We shall see. . | ||
| Shawns |
Are the pistons from 08-09 the same? Just in case. | ||
| Shawns |
Almost ready to drop the motor. Need to figure out a stand. So far I have only seen bits of plastic in the oil pump strainer. I am ordering chain guides as well. Better than metal I guess. My coolant is all rusty, wonder whats up with that. Hopefully not a head gasket, didn't see the milky oil so I hope I'm good. Wish I could get it done in one shot,. A little at a time helps me keep my patience. | ||
| Zac4mac |
Jeff makes them, not too expensive either. http://www.badweatherbikers.com/buell/messages/290 431/736766.html?1441082228 I should have one waiting at the shop if Ross was there Friday... I was racing. Z | ||
| Two_seasons |
And, those bits you see in the oil pump strainer may just be RTV silicone that is used during assembly at the factory. Or if the stator has been replaced or modified as you have an 2009 cr. Others here at BadWeb have reported that what they initially thought was metal turned out to be rubbery bits. | ||
| Shawns |
They were definitely plastic. That's why I gather chain guides. | ||
| Panshovevo |
Shawn, can you get a pic of the plastic pieces? | ||
| Shawns |
 | ||
| Panshovevo |
Shawn, was your bike one of those recalled for the rear cylinder cam chain tensioners? The recall was for 2009 model year CRs built between April 11, 2008, and September 11, 2008. http://www-odi.nhtsa.dot.gov/owners/SearchResults;jsessionid=mgLQVwtDvTvybn1fhV6tplC3yfvGVkL5JRGYGy pb2VhfgB5Hdnpy!675884556?prodType=V&searchType=PRO D&targetCategory=A&searchCriteria.model=1125CR&sta ts=488770%7C662649%2C1%2C3%2C43%2C4%2C1125CR&makeS tats=&jsonBaseURL=%2Fdownloads%2Ffolders%2F&search Criteria.model_yr=2009&searchCriteria.make=BUELL&s earchCriteria.prod_ids=488770%2C662649 (Message edited by Panshovevo on September 09, 2015) | ||
| Shawns |
Mine doesn't show that the recall is applicable. | ||
| Shawns |
There be gold in my motor  | ||
| Shawns |
I know the one head is messed up, but the fine particulates look like brass. What could they be from? The larger pieces are all plastic, I'm guessing chain guides. Hope to have the motor out this week time permitting. | ||
| Panshovevo |
Check all the pieces that aren't plastic with a magnet. I would expect to find pieces of the cam fingers. Maybe some particles from the spacer. | ||
| Shawns |
Not finding any sign of the missing pieces. I can see whats missing tho.  | ||
| Shawns |
Found out where the plastic pieces came from. Still on the hunt for the cam follower pieces.   | ||
| Shawns |
Sooo..... this  Caused this    But thankfully didn't damage these   My question of the day is... Can I still use the case as it is and install new guides? | ||
| Stirz007 |
New cam guides (both cyls), new cam chain, make sure tensioner is working smoothly, reset cam timing and go go go - but that's just me yappin. A complete tear down and rebuild would be ideal, but sometimes you just do what you can do. At least now you know where the mystery bits in the oil drain pan came from. Doesn't look like valves slapped either - also good. Find that last follower bit yet?? |
