Topic: CB750, Went to change oil for first time and found this

[KB02]

I just did a quick search on evilbay for "oil pan CB750. Here's what I've found:

eBay Auction #1:
   
Honda CB750 CB 750 SOHC Engine Oil Pan

eBay Auction #2:
   
Honda CB750 CB 750 Oil Pan

Hope it at least some what helpful.

[MRieck]

 Drill through the drain bolt and tap it for a 8mm bolt. Put a copper crush washer under the bolt. That's the cheapest thing I can think of.

[GNXFan]

I have a 73 K3 oil pan if you want to change out the whole pan.

[turboguzzi]

don't want to aggravate, but what's even more serious is: when was the last time the guy changed the oil?

Wouldn't be a bad idea to pull the valve cover off and see how's the cam like, it's among the first things to suffer from bad oil an relatively, easy to access.

Dont ask me how I know please....

make sure you put there the best oil that you can get at least.

[dusterdude]

Drill through the drain bolt and tap it for a 8mm bolt. Put a copper crush washer under the bolt. That's the cheapest thing I can think of.

or tap it 1/8 inch pipe

[johnny-from-bel]

If it was mine. Id put the pan in my workshop oven put it on 350 degrees celcius for a few hours. The scrape the JB weld of patch it up with wax and sancast myself a new one

[firecracker]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

[dusterdude]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

oh #$%*

[turboguzzi]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

oh #$%*

oh #$%* indeed..... don't want to kidnap this thread + there are tons of oil threads in sohc4 + what I can get in Italy is not necessarily available in the US and viceversa.

enough said :-)

[Gordon]

Wouldn't be a bad idea to pull the valve cover off and see how's the cam like, it's among the first things to suffer from bad oil an relatively, easy to access.

You must not own a 750, then.

[MRieck]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

Slippery stuff.

[BobbyR]

Oh Boy, oil and guns are the hot buttons here. Should take us through the winter.

[cleveland]

$15 shipped is pretty cheap, so that's the way that I would go.   

BTW, scanning the gasket is plain genius!
 

[antiq]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

I'm using Mobil1 synthetic for one of my bikes and Exxon 20-50 in another. Use the best you can afford from a brand you trust. Just be sure it doesn't have extra additives. I forget what they're called just now. Bikes have wet clutches that can be adversly affected by those additives.

[Gordon]

Uh-oh!  Someone took the bait!!!!

[cleveland]

 

[BobbyR]

Yep

[firecracker]

Sorry, I thought this       was a dead give-away at my intended sarcasm.


I feel so bad, I wanna shoot myself.

What type of gun would you recommend?

       

[BobbyR]

I would suggest a small caliber with a hollow point bullet. This way the undertaker can putty up the hole and you can have the lid open and be properly viewed. Fellows may also wish to come by place a small sprig in there. 

[mkramer1121]

He didn't say kill, just shoot....I'm sure a small caliber rifle won't leave too much of a hole in your foot...

[mrbreeze]

make sure you put there the best oil that you can get at least.

What kind of oil do you recommend?

 

I'm using Mobil1 synthetic for one of my bikes and Exxon 20-50 in another. Use the best you can afford from a brand you trust. Just be sure it doesn't have extra additives. I forget what they're called just now. Bikes have wet clutches that can be adversly affected by those additives.

Oh sh!t!!!!!!!......here we go again!!!!!!!!!!

[jtb]

Well... It's obvious, if the PO had used decent oil, this would never have happened.

[super pasty white guy]

Speaking of, did you all see the "expert's" admonition to "Don't use synthetic in any CB750 honda.  The clutch will slip and you'll be wasting your money" published in this month's Classic Bike (page 89)?

I haven't yet gotten around to writing a reply, but maybe we should flood them with responses...

Dave

[Gordon]

Well... It's obvious, if the PO had used decent oil, this would never have happened.

Meh, not quite contentious enough.  You'd  have to say something like, "if the PO had used synthetic oil, this would never have happened", to really get things going.

[BobbyR]

Just to keep adding fuel to the fire here is a note forwarded to me from a HD owners group. The spelling is on par for a HD group:

Ken - from P2P - found a Harlely Forum on the net and found out that Harley is no longer suggesting SYN 3 (somewhat synthetic - its a group III)  Mobil 1 , 20W-50 for bikes is a group IV, better oil for less $, but that is not what the fuss is all about.  The SYN 3 oil is too light of a vis for the tranny.  After reading for hours on this forum we came up with - Mobil 1  20W-50 for bikes or Mobil 1 15W-50 for race cars, $20.00 for 4 qts. at Wal Mart.  The only advantage is in the 15W and it gets to the upper parts of the engine sooner and thats where most wear occurs.  It also has less Molly and is less acidick.  We are putting Mobil 1 - 75/90 Gear Oil in the trans.  Makes it last longer and run cooler and quiter.  The reason for Harleys switch is they were getting reports of a lot of metal fillings when changing the trans.  Mobil 1 will stop that.  The forum also agrees that any good cheap dyno oil will do in the primary as it only lubs the chain.  20W-50 non synthetic was suggested.
Read the oil and related topics and make up your own mind.  I suggest a lot of research on this.


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Lifes journey is not to go to the grave in a perfectly preserved body.......... but to slide in sideways, totally worn out yelling..........Good God What A Ride!!!!!




Pete