Engine woes... Bent Exhaust valves... and....
Posted April 07, 2004 - 12:50 PM
Here's the deal.
I'm trying to keep my honest mechanic honest. Since I'm not a 4
stroke mechanic... and don't wanna be.
I recently had been losing about a quart of oil every 200 miles. In
fact .. I posted about this about a year ago I think. (wow.. it
really was a looong time ago). So I had a mechanic pull the motor
and yank it down to see what's up. Ultimately... it was pretty tired.
Mostly from dune riding. (a tad of sand does horrible things to these
So I replaced EVERYTHING that said "seal" in the engine as well
as "bearing"... let alone a new Barnums Cam and piston, rings,
Carillo rod and crank assembly...etc. The bike went together... and
once started was a tad noisy. Noisy... like it was a CRF.
I still took it on a ride... It didn't sound too bad, and it went together super
nice and smooth. SO.. I rode it! 80 miles in fact into Mex. And...
the damn thing lost most of it's compression within 10 of those
miles. But it still started. So I kept riding. At the 80 mile mark...
it died. Yup... died. I could bump start it (this is after I took all
kinds of things off or checked to make sure it wasn't something
stupid) and it'd run... but not very good. I ended up towing it for
about 30 miles of the 80. Then said screw it and rode it to the
Once apart... I was told I had bent exhaust valves. Bent??? What
the??? Anyway... being we were both busy at the time, I didn't get
why or who's responsibility it was.
SO here's what I'm asking; (finally huh?!)
1- Were the valves bent ya think due to timing being off??
Thanks in advance... I truly am bummed. I haven't ridden the XR in
a loooong time. 10 months or so!!!
Posted April 07, 2004 - 01:06 PM
Posted April 07, 2004 - 01:44 PM
Posted April 07, 2004 - 01:54 PM
And I bought the cam from Rob at Barnums Pro Products. He's an awesome guy to work with... I'll call him to see if he mentions this issue.
I've got a mild cam grind (from Rob as well) and I know that may also effect the clearances... we'll see.
Thanks for the help.
Posted April 09, 2004 - 02:51 AM
"NO FEAR" If you have no fear, you didnt go as fast as you could have ...
Posted April 11, 2004 - 07:18 AM
Just to clear the air... please re-read the post. I think some things got misconstrued. I see Frog asks about the motor being newly rebuilt. Yes, the mechanic took it down to nothing and rebuilt it. All for a killer price as he knows friends of mine and helped me out. And Jet... he's not a sleaze bag and hasn't charged me. He's a straight up nice guy with great mechanic talent. All that's happened so far is I bought the parts and dropped them off with the bike. We haven't discussed a price or even if he'll charge me on the fix.
SOOOoo... With that, like I said... I was just looking for advice on what might have been wrong to cause the problem being the motor was brand new top to bottom. AND it ran fine for the first 10 miles. THEN... it started to lose compression when I kicked it over. AND.. if the mechanic should eat any costs or offer up his labor and parts cost since IT WAS just rebuilt. That's all!
Does that make more sense??
Posted April 21, 2004 - 01:04 PM
I was trying to work out the issue with The Barnums (Denise mostly) of Barnums Pro Products... but it seems there's more finger pointing going on than anything. I'm gonna give the Barnums a day or two to offer a better resolution as this forum only knows half the story on the total chaos I've recently dealt with... It deals with not only the valves, but a cam gear... and other things.
I'm sure you'd all be very surprised to hear and read what I've been told...
Posted April 26, 2004 - 02:22 PM
Why is it barnums fault your mechanic is just a parts changer? Couldnt he hear the valves hitting the piston when he started the bike after re-building it? Monkey. What about the rod, the gaskets, the vavle clearence? Its a freakin race engine...you dont just bolt it together and go to Baja and ride it till it dies. gimme a break. Did you put oil in it?????! You a monkey, not Barnum. Barnum a former team Kawasaki mechanic. D 37 #1 plate holder. Hard working small business man. Honest and good guy who supports our sport. You a snivelling little girl that tried running with the big dogs and fell on your face.
Why is it Barnums fault you took a ticking bike to Baja and rode it till it died?
I point the finger at naive johhny air time.
He needs a good slap.
Posted April 26, 2004 - 02:49 PM
Being I just replied to you in the other posting... I've got to tell ya... You are a #1 supporter of MAJOR ass kissing!!!
I hope Rob discounts your next motor rebuild... He does do your work right? How embarrasing as it sounds like you know more than anyone out there.
Like I said, I don't doubt Rob's ability at all. Maybe you need to "read between the lines"... oops, you did already. GO back and re-read... maybe you'll understand your 5th time through.
And I'll line up with you anyday. But if I'm faster... does that make you a slow ass monkey?! Ahh, I wouldn't give you the time of day. I've already replied to you too much and taken too much of my time with you.
Have fun at the 500. Make sure to listen for odd noises before you ride. Like voices in your head. Karma works wonders. And... those booby traps... oh, they're a doozy when not heeded. Lastly... make sure we don't see a DNF on final results.
Good luck Iron Butt.
Posted April 26, 2004 - 06:48 PM
For the past 4 years i have been paying full price to Rob Barnum. I say positive stuff about his shop becouse i have had such a positive experience. I respect his efforts as a small businessman, a 650 racer, and a great mechanic.
If you check the archives you will see that the one time i did have trouble with a Barnumpro issue (it was a clogged Edelbrock carb) i did bring it up on this forum.
SO little john-john, you are--once again--wrong. I am well known on TT for calling it like i see it. No sugar coating. Straight up. My two pesos are that Barnumspro.com is the best overall place to go for XR650 stuff. He is the only shop at the races, he's a thumpertalk supporter, and IMHO an honest small businessman giving it a go.
John-john---i learned most of what i know about bikes from my father. He is a mechanical engineer who started racing desert in 1970. I grew up making my own expansion chambers, racing 70's mini mx, and riding "Gorman" before it was a ORV park!
As for my knowledge of the 650--i have said time again that i wish i only knew half of what Qadson knows. I am the guy to go to for info on racing BITD and SOCRE/Baja. The insights i have on the 650 come mostly from reading the internet--but also from racing the bike, and from working as a Baja guide for Chris Haines, and now with Tim Morten of Bajaboundmoto. And finally, yes, from Rob as well.
You stand corrected.
Johnny :cry:air :cry:time...
Posted April 26, 2004 - 09:08 PM
Posted April 27, 2004 - 02:14 AM
I find it even more interesting how I'm getting emails from supporters, but they don't want to post on the forum due to harassment. That sucks. Too much finger pointing and badgering from people like IronDude.
And Quadsan... nice informative person. With a lot of knowledge. I'll take info from him any day... especially since he doesn't throw it out there and belittle people like IronDude (who has no right since he knows nothing of me personally).
So... let's not beat the dead horse already. As you'll read, I'm not "blaming" Barnums directly for anything but bad customer service.
Posted April 27, 2004 - 07:00 AM
Posted April 27, 2004 - 08:47 AM
The good news, my piston wasn't damaged nor were any other parts. So I'll have a bike that runs this weekend... maybe to enjoy some "Weekend Street Warrior" time... with a tad bit of dirt. I've got too many other things to do to ride Mex again this weekend. ..blah.. ..blah..
Posted April 27, 2004 - 02:57 PM
Posted April 28, 2004 - 03:29 PM
Hat's off to ya for one of the most mature replies I've read. (maybe IronDude can learn from it). Anyway...
Back to cleaning my bike.
Posted April 28, 2004 - 03:38 PM
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