Author Topic: Cobra motor disassembly and rebuild (Read 108821 times)

Medyo Bastos · « **Reply #675 on:** November 21, 2016, 05:21:18 PM »

Billy I've got a bag full of pins wrapped up and tucked away under the bed

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Jerry Rxman Griffin aka MuthaF'er · « **Reply #676 on:** November 21, 2016, 06:40:22 PM »

Quote from: Bill/BentON Racing on November 20, 2016, 05:56:57 PM

Yep, I realized how lucky I was......It was running so good, love the color of the top of pistons

Mike oughta be able to clean up that chamber

Bill/BentON Racing · « **Reply #677 on:** November 21, 2016, 06:51:26 PM »

Frank, I'll work on that....be a good start on your build.

, Bill

dragracer · « **Reply #678 on:** November 21, 2016, 06:59:07 PM »

Quote from: Bill/BentON Racing on November 21, 2016, 06:51:26 PM

Frank, I'll work on that....be a good start on your build. , Bill

Now we'll get to see how much power those rods can take. This ain't gonna be strictly a N/A build. I see lots of potential down track clutch slippage coming unless I use heavy duty springs or a lockup. Wondering how deep in the nines we can get this one.

Bill/BentON Racing · « **Reply #679 on:** November 22, 2016, 04:06:37 AM »

You hoofing gas! Lol Frank's 750 Nitrous Express! Someone for sure going 9's! LMAO, Bill

PeWe · « **Reply #680 on:** November 22, 2016, 09:56:56 AM »

About RC lighter (thinner) wrist pins.
This setup worked better without failure back in the days whith Golden rods, right? The softer metal with more flex and less force banging the wrist pins than a newer steel rod. A kind of shock absorber in the rod.

I searched for alu rods when I have read at the hiPo froum and Internet that Nitro engines use aluminum rods.
http://www.dragzine.com/tech-stories/engine/debunking-aluminum-rod-myths-with-grp/

Bill/BentON Racing · « **Reply #681 on:** November 23, 2016, 05:13:11 PM »

Here you go, just played Ronnie Wood's I'm a lucky man! Just damn....never see one like this, N/A engine Wow!

Bill/BentON Racing · « **Reply #682 on:** November 23, 2016, 05:24:34 PM »

I know that's not where I left that ring!
I believe this piece broke the primary chains, it's wedged in tight!

BPellerine · « **Reply #683 on:** November 23, 2016, 06:11:41 PM »

after all the engines you have taken apart,if you haven't seen it nobody has!wow.billp

MRieck · « **Reply #684 on:** November 23, 2016, 07:10:20 PM »

Quote from: PeWe on November 22, 2016, 09:56:56 AM

About RC lighter (thinner) wrist pins.
This setup worked better without failure back in the days whith Golden rods, right? The softer metal with more flex and less force banging the wrist pins than a newer steel rod. A kind of shock absorber in the rod.

I searched for alu rods when I have read at the hiPo froum and Internet that Nitro engines use aluminum rods.
http://www.dragzine.com/tech-stories/engine/debunking-aluminum-rod-myths-with-grp/

My understanding was there was no manufacture known for the pins. They were old..... and .....well....you get it. No guarantee on them.

MRieck · « **Reply #685 on:** November 23, 2016, 07:12:10 PM »

Short pins ...etc.....etc..... etc......etc We get it.

Bill/BentON Racing · « **Reply #686 on:** November 23, 2016, 07:18:39 PM »

Here's some more "short" pins!,
A piece of the pin found in the cases.

dragracer · « **Reply #687 on:** November 23, 2016, 08:20:21 PM »

Since you brought up the subject of forgetting to add oil, here's the results of my screw up from several years ago. MTC was proud of that one piston they had to cut for me to match the originals. Almost as much as a set of 4.

Medyo Bastos · « **Reply #688 on:** November 23, 2016, 08:49:54 PM »

Quote from: Bill/BentON Racing on November 23, 2016, 05:13:11 PM

Here you go, just played Ronnie Wood's I'm a lucky man! Just damn....never see one like this, N/A engine Wow!

Billy there is a problem with this oil pump ~> http://forums.sohc4.net/index.php?action=dlattach;topic=153782.0;attach=339817;image those socket head bolts are not anodized red

754 · « **Reply #689 on:** November 23, 2016, 09:09:43 PM »

So bill, it appears these were rescue cases ? Previous chain damage, and on their second life...

dragracer · « **Reply #690 on:** November 23, 2016, 09:29:27 PM »

I'm going to be sure to have my wife fabricate some engine diapers for us by next season. Got one on my top gas Kawasaki we can use as a basic example. They may not be NHRA/SFI approvable but if they contain several ounces of oil, it'll at less give you an opportunity to roll to the side of the track without completely oiling it down and will keep the slick stuff off the tire so the rider stays upright til the bike stops. I'll get this going while she's on Christmas break from her tutoring business.

Retro Rocket · « **Reply #691 on:** November 23, 2016, 11:21:58 PM »

Geeze Bill, this reminds me of an old British Paints advertisement from the 1970's here in Australia, it went like this "If a jobs worth doing, its worth doing well "

PeWe · « **Reply #692 on:** November 24, 2016, 03:14:59 AM »

Newer pistons coating should evolve so no damage will happen for a small detail as no oil

Jerry Rxman Griffin aka MuthaF'er · « **Reply #693 on:** November 24, 2016, 10:17:02 AM »

Quote from: dragracer on November 23, 2016, 09:29:27 PM

I'm going to be sure to have my wife fabricate some engine diapers for us by next season. Got one on my top gas Kawasaki we can use as a basic example. They may not be NHRA/SFI approvable but if they contain several ounces of oil, it'll at less give you an opportunity to roll to the side of the track without completely oiling it down and will keep the slick stuff off the tire so the rider stays upright til the bike stops. I'll get this going while she's on Christmas break from her tutoring business.

What kind of fibers will she use Frank? If Bill can destroy a Carrillo........

Bill/BentON Racing · « **Reply #694 on:** November 26, 2016, 04:11:35 PM »

LMAO, OK, here you go , it's all boxed up now! A few last pics Think I'll go sweep the garage floor......

BPellerine · « **Reply #695 on:** November 26, 2016, 04:36:30 PM »

what a shame to see the teeth on the crank!billp

dragracer · « **Reply #696 on:** November 26, 2016, 05:46:21 PM »

Just hang it all under the Christmas tree 🎄. Santa might bring you a shiny new one.

Bill/BentON Racing · « **Reply #697 on:** November 26, 2016, 06:12:43 PM »

Well look what I swept up, Merry Christmas Frank! These,are nice...Kenny says hello.

dragracer · « **Reply #698 on:** November 26, 2016, 06:42:28 PM »

They look good Bill. Tell Kenny we're going to put these under a load sometime next season. I might have need of one of his lockup clutches so put him on alert.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #699 on:** November 26, 2016, 09:48:45 PM »

Bill, what do you think the outcome will be for the 3 'other' Carrillos?

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Author Topic: Cobra motor disassembly and rebuild (Read 108821 times)