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Author Topic: Does this look like metal?  (Read 797 times)

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Offline theslayedsaint

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Does this look like metal?
« on: March 17, 2015, 03:57:50 PM »
Ok so just pulled my oil pan to find this! At first I thought metal.. But the engine rebuilt and only be on for about 1 min. My thought is its from the gasket glue I put on the screws to mount the pan. Eveything seemed cleaned but this seem really dirty. I tried feeling it and it doesn't "feel" like metal.
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #1 on: March 17, 2015, 04:02:00 PM »
Also oil seems really muddy
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline LesterPiglet

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Re: Does this look like metal?
« Reply #2 on: March 17, 2015, 04:02:48 PM »
What was rebuilt? It could be natural "rubbings" from the new components bedding in.
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'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


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Offline Lurch77

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Re: Does this look like metal?
« Reply #3 on: March 17, 2015, 04:03:51 PM »
It's hard to tell from the picture. But it almost looks like gasket or seal material. Does a magnet pick any of it up?
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Offline theslayedsaint

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Re: Does this look like metal?
« Reply #4 on: March 17, 2015, 04:19:00 PM »
Ok that solves if it's metal! #$%* me what the hell could it be? The whole engine is rebuilt other then gears and rockers and arms.
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline LesterPiglet

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Re: Does this look like metal?
« Reply #5 on: March 17, 2015, 04:42:16 PM »
New bearings/rings/pistons/camshaft/rockers? What? We need to know then we can eliminate certain possibilities. We know it's magnetic so that narrows it to a ferrous metal.
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'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


Les Ross.            Certified by a Professional

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #6 on: March 17, 2015, 04:51:29 PM »
First I just found out even though I primed the oil pump it had got stuck! So I'm glad I didn't run the engine that much! However I know this is the worst thing! I planed so hard to make sure this didn't happen so mad now! If this ruins the engine im going to scream!

New parts
-reborded to 849
-all around new chains
-new rods
-balanced and lightened crankshaft
-new tensioner
-and some other things I can't think of at the moment
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline flybox1

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Re: Does this look like metal?
« Reply #7 on: March 17, 2015, 04:55:29 PM »
If you properly lubed (assembly lube) your top end during the build, and poured oil up top to help prime the system, you're probably ok..
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #8 on: March 17, 2015, 04:59:20 PM »
Yes I did that for sure! But then again already found metal in the engine so not sure at this point what to do! My thought is keep going get bike running and heated up then do another Oik change and hope I get all the metal out and there's no damage or this is going to be one expensive paper weight lol
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline LesterPiglet

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Re: Does this look like metal?
« Reply #9 on: March 17, 2015, 05:00:13 PM »
If was starved of oil then the first place to look is at the camshaft area. You may spot something...or not through the tappet covers with the aid of a lamp
« Last Edit: March 17, 2015, 05:02:08 PM by LesterPiglet »
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'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


Les Ross.            Certified by a Professional

Offline Stev-o

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Re: Does this look like metal?
« Reply #10 on: March 17, 2015, 06:04:28 PM »
Oils looks like mud?  Did you blast the cases??
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #11 on: March 17, 2015, 06:12:00 PM »
No just cleaned the bottom and head the top glass beaded. So is there any way to know if I did any damage or do I just have to pray. I'm going to let the bike warm up and then check to see what the oil looks like and if it's dirty I'll try and do another oil change and test again
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #12 on: March 17, 2015, 06:28:05 PM »
One more qustion. Is there anyway to tell if the egaine is getting enough oil?
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline LesterPiglet

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  • 1977 CB550F2
Re: Does this look like metal?
« Reply #13 on: March 17, 2015, 06:30:22 PM »
Oil should spatter out with the engine running and the tappet covers removed.
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'Then' and 'than' are completely different words and have completely different meanings. Same with 'of' and 'have'. Set and sit. There, their and they're. Draw and drawer. Could care less/couldn't care less. Bought/brought FFS.


Les Ross.            Certified by a Professional

Offline flybox1

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Re: Does this look like metal?
« Reply #14 on: March 17, 2015, 06:32:51 PM »
Bubbles and slow flow in the side tank
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline scottly

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Re: Does this look like metal?
« Reply #15 on: March 17, 2015, 07:53:38 PM »
Perhaps the metal in the pan came from the miss-assembled clutch? ::)
http://forums.sohc4.net/index.php/topic,146001.0.html
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Don't fix it if it ain't broke!
Helmets save brains. Always wear one and ride like everyone is trying to kill you....

Offline theslayedsaint

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Re: Does this look like metal?
« Reply #16 on: March 17, 2015, 08:25:29 PM »
Thanks guys for all the help! At this point I've reinstalled the oil pump, also found that I believe the clutch cover was the issues pulled it off and pushed the bike in gear and it wouldn't move, so I put it back on and tested it and it seems to be working. I really think I installed the plates right. Now the Bike starts up with one kick and runs great! Needs a little tuning but sounds like a beast. I pulled the oil nut and checked the oil seemed to look fine, a little dark but not bad. So I have no clue where the metal came from and if its a big deal or not. At this point I'm praying that I had enough Oil and lube on it from the install. After I finish some other things I'll go for a test ride and see. Any thoughts or ideas on if this is a good idea?
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1974 CB750 custom build cafe racer
-849cc big bore
-Webcam 63a
-APE rods
-4-1 stainless exhaust
-GSXR front end

Offline spotty

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Re: Does this look like metal?
« Reply #17 on: March 17, 2015, 09:15:00 PM »
nah, this is what metal looks like....



sorry couldn't help it, hope your motors ok
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i blame Terry
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