Author Topic: Pardon me... but what's the point of these???  (Read 1352 times)

0 Members and 1 Guest are viewing this topic.

Offline CBJoe

  • Master
  • *****
  • Posts: 1,975
Pardon me... but what's the point of these???
« on: February 02, 2008, 10:56:54 AM »
Pardon my ignorance ???, but I remember staring at these plugs in the crankcase a while back and I still cant figure out what their purpose is (other than to hold the oil in the crankcase! ;)).

Did these serve some point in manufacturing?  Or does oil pool around these plugs that you cant drain via the normal oil change method.

Cheers.....Joe
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline CBJoe

  • Master
  • *****
  • Posts: 1,975
Re: Pardon me... but what's the point of these???
« Reply #1 on: February 02, 2008, 10:57:53 AM »
Sorry, '80 CB650C....
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline Bob Wessner

  • "Carbs Suck!"
  • Really Old Timer ...
  • *******
  • Posts: 10,079
Re: Pardon me... but what's the point of these???
« Reply #2 on: February 02, 2008, 11:06:27 AM »
Maybe to provide access of some sort, but needed to be oil-tight? ???
We'll all be someone else's PO some day.

Offline paulages

  • Old Timer
  • ******
  • Posts: 3,876
  • 1976 cb735
    • DOOMTOWN RIDERS P.R.M.C.
Re: Pardon me... but what's the point of these???
« Reply #3 on: February 02, 2008, 12:05:16 PM »
they are plugging the ends of where the oil galley was bored.
« Last Edit: February 02, 2008, 12:13:37 PM by paulages »
paul
SOHC4 member #1050

1974 CB550 (735cc)
1976 CB550 (590cc) road racer
1973 CB750K3
1972 NORTON Commando Combat
1996 KLX650 R

Offline CBJoe

  • Master
  • *****
  • Posts: 1,975
Re: Pardon me... but what's the point of these???
« Reply #4 on: February 02, 2008, 12:26:34 PM »
Thanks... now i can sleep at night  :)
'07 Bonneville Black
'15 Moto Guzzi California 1400
CB750K2 Hot Rod Revival http://forums.sohc4.net/index.php/topic,171693.0.html
'65 CB77
'66 CM91 (C90'ish)

Offline Raul CB750K1

  • Old Timer
  • ******
  • Posts: 3,881
Re: Pardon me... but what's the point of these???
« Reply #5 on: February 02, 2008, 01:27:49 PM »
they are plugging the ends of where the oil galley was bored.

I have one plug in my CB350 and I always thought it was to provide for a pressure gauge.