Author Topic: I think I blew my oil pump at 75mph, Pre case split findings, with gory pics? (Read 8951 times)

Spanner 1 · « **Reply #50 on:** July 31, 2010, 09:14:29 AM »

Lighten-up Manjisann.... no-one is calling you a liar..... it does look unbelieveable now , doesn't it

Jerry Rxman Griffin aka MuthaF'er · « **Reply #51 on:** July 31, 2010, 09:32:03 AM »

Quote from: cb650 on July 31, 2010, 06:02:35 AM

I bet the intake valve broke then beat the piston to death and let parts come up the intake. And down in the case for that hole.

That's what mine looked like when I broke the valve. Plus I had pieces of piston in my exhaust too. Parts engine now.

754 · « **Reply #52 on:** July 31, 2010, 09:33:13 AM »

I bet you can see a frshly nicked rod, when you look in the plug hole...
oh, and the plug is pretty beat up, isnt it?

TwoTired · « **Reply #53 on:** July 31, 2010, 10:16:31 AM »

Imagine flying along in your airplane and the engine starts making really awful noises and shaking the plane violently, I mean shaking so bad that when you glance out the window you see the wing tip flapping up and down 1 or 2 feet. This is what happens when your 360 Cu In 4 cylinder becomes a 3 cylinder.
The autopsy revealed that the exhaust valve broke off and banged on the piston and cylinder until it was bent and small enough to fit down the exhaust track. Found the remains in the muffler.
But, I was "lucky". It didn't hole the piston, allowing the rest of the engine to survive and drag the well shaken cabin occupants bake to a safe landing.

754 · « **Reply #54 on:** July 31, 2010, 10:28:12 AM »

Were there pods, on that plane...

TwoTired · « **Reply #55 on:** July 31, 2010, 10:35:42 AM »

Quote from: 754 on July 31, 2010, 10:28:12 AM

Were there pods, on that plane...

No. Those are illegal to install on this (most) aircraft.

You'd hate working on certificated aircraft, 754. You can't change anything about the design but paint color. Even then, you have to have a weight and balance calculation added to the maintenance log and have government certified sign off.

Soos · « **Reply #56 on:** July 31, 2010, 01:33:04 PM »

I'm bringing my camera tomorrow Brandon!
Thats just freaky!

l8r

Jerry Rxman Griffin aka MuthaF'er · « **Reply #57 on:** July 31, 2010, 03:51:45 PM »

See what I mean?!

manjisann · « **Reply #58 on:** July 31, 2010, 09:02:45 PM »

Jerry, that's not a piston, that's a donut!

I got down to getting the camshaft off and found something interesting. The intake rocker arm for cylinder 1 had the part that comes in contact with the lobe of the cam worn concave. I'll post pics tomorrow, I was in a bit of a rush today. Unfortunately I couldn't find the right tools to remove the part with the valves in it to see if my piston looks like Jerry's or not. So for now I'm still not totally sure what went wrong but I'm beginning to think Jerry and 650 are right and something went wrong and the valve punched a hole in the piston.

I wonder if the ticking noise I was hearing was the valve hitting the top of the piston? The biggest thing that confuses me about this all is the ticking noise went on for at least a hundred miles, more likely 200, so shouldn't I have felt a loss of performance or something before it went all fubar on me? Aside from the obvious "Brandon, pay attention to ticking noises, it's either mechanical failure or someone put a bomb in your engine" is this something I could/should have seen coming?

Thoughts?

Brandon

Jerry Rxman Griffin aka MuthaF'er · « **Reply #59 on:** July 31, 2010, 09:59:47 PM »

Mine didn't tick like a time bomb, it just went boom and locked up. Missed power shift to 2nd. VERY high revs. TOO high revs.

ekpent · « **Reply #60 on:** July 31, 2010, 11:18:50 PM »

I nominate Jerry's piston as best explosion picture of the Month---

Almost pretty in a way--Hammered aluminum--

Frankenkit · « **Reply #61 on:** August 01, 2010, 12:56:09 AM »

BEPM

Seconded, unless Manjisann can come up with a better blow-up.

Skonnie Boy · « **Reply #62 on:** August 01, 2010, 01:07:25 AM »

Quote from: Kit on August 01, 2010, 12:56:09 AM

BEPM Seconded, unless Manjisann can come up with a better blow-up.

I would second that. Tear sh!t up and let's see.

Terry in Australia · « **Reply #63 on:** August 01, 2010, 01:11:43 AM »

I think Brandon's internals are gonna be pretty impressive, considering the smashed engine case and bits of piston in the inlet port!

manjisann · « **Reply #64 on:** August 01, 2010, 03:52:23 AM »

Well, if I can't make Bike of the Month, may as well over achieve at Destroyer of the Month

Brandon

Terry in Australia · « **Reply #65 on:** August 01, 2010, 05:35:48 AM »

Who knows mate? "Blow up" of the month this month, and maybe bike of the month next, it's a crazy old world, ha ha!

Frankencake · « **Reply #66 on:** August 01, 2010, 08:17:44 AM »

Quote from: Jerry Rxman Griffin on July 31, 2010, 03:51:45 PM

See what I mean?!

That. is. awesome. I love what you've done with your piston modification.

I got my popcorn right here. Come on Manjisann; three pages and very few pics? Out with it. We're all like a bunch of slobbering dogs waiting for a bone here.

manjisann · « **Reply #67 on:** August 01, 2010, 09:43:57 AM »

Haha, sorry to make everyone wait to see the innards but I've been focused on getting the spare engine in the bike and getting her running and rideable again. I'm afraid it may be a few more days before I can open her up, but when I do I promise as many and detailed of pics as my little camera will take

Brandon

Hush · « **Reply #68 on:** August 01, 2010, 11:54:48 AM »

Re your 100 mile tinkling noise Brandon, these 650's will show very little drop in performance when running on only 3 cylinders especially when the throttle is wide open, that means a snapped off inlet valve head could have been dancing all over your #1 piston all that way.

manjisann · « **Reply #69 on:** August 01, 2010, 01:46:43 PM »

Man if this was a horse I would call that loyalty, but since it's a motorcycle it's not quite as endearing. Well I'll just be a little more paranoid when I hear such noises ( Like I really needed help being paranoid

)

Hush, do you think maybe it was that NZ air filter I found that caused this?

Brandon

Soos · « **Reply #70 on:** August 01, 2010, 04:33:48 PM »

Hey Brandon, dropped those cases off.
That engine looks trashed!
I wonder if the conn. rod of the piston failed.
(all his valves look to be there, but I could be wrong)

l9r

Trav-i · « **Reply #71 on:** August 01, 2010, 07:20:09 PM »

Man last time I saw damage like this I was working on a 3406E CAT diesel engine in a Kenworth tractor. The guy spun a cam bearing dropped 3 valves in 3 different cylinders and just kept going. Needless to say it was a wonder that it ran at all. Even though he said he stopped driving it as soon as it happened, his engine computer told me different, it showed me that he over revved the engine 12 hours before he brought it to the shop (I love computers).

Anyway back to the topic at hand, I'm just as curious as everyone else to find out what happened.

manjisann · « **Reply #72 on:** August 02, 2010, 04:02:42 AM »

Soos, HUGE thanks for the cases and other bits man. I sure feel bad for all the other 650 owners since Soos doesn't live near them

I'm hoping to tear into the engine Thursday, unfortunately I'm heading out of town today.

Soos, I guess this answers which engine will be getting those shiney pistons you machined down for me eh

Brandon

manjisann · « **Reply #73 on:** August 02, 2010, 09:13:42 PM »

Ok, so I changed my plans and won't be leaving till tomorrow morning. I REALLY wanted to try riding my bike with the replacement motor in it, so I did

When I got back I tore into the top of the engine to see what the verdict was.... it was as bad or worse than I had thought. Here's the pics you've all been waiting for.

Brandon

manjisann · « **Reply #74 on:** August 02, 2010, 09:15:27 PM »

News:

Author Topic: I think I blew my oil pump at 75mph, Pre case split findings, with gory pics? (Read 8951 times)