Author Topic: CB836 - Oil line routing  (Read 2000 times)

0 Members and 1 Guest are viewing this topic.

Offline dakota

  • Enthusiast
  • **
  • Posts: 103
CB836 - Oil line routing
« on: January 25, 2017, 11:10:13 AM »
Hi all,
I am busy preparing a cb7550 f2 1978. I have installed a dp836 piston kit, webcam 41, ....
I have also installed a oil cooler.
I have put 4 litres oil in the tank, but when I rev up to 6000rpm, there's not much oil coming back into the tank.
Are the oil lines okay?





Regards,
gp

Offline slikwilli420

  • Master of Disaster
  • Master
  • *****
  • Posts: 2,362
Re: CB836 - Oil line routing
« Reply #1 on: January 25, 2017, 11:13:48 AM »
Your pictures dont even show everything hooked up. The return line does not even have a fitting on it. Post an updated pick with all three lines installed.
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline Lammers000

  • Full Member
  • *
  • Posts: 55
Re: CB836 - Oil line routing
« Reply #2 on: January 25, 2017, 02:14:17 PM »
What sort of oil cooler are you running? I'm doing a similar build, and looking for a good cooling setup right now. Thanks.
Be an Engineer they said. It will be fun they said.

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,807
Re: CB836 - Oil line routing
« Reply #3 on: January 25, 2017, 03:19:31 PM »
Tank to oil-pump in sump........filter adapter return feeds to oil-cooler..........then cooler to oil-tank.  What is the line on the right side of the motor for?
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan

Offline Bodi

  • Really Old Timer ...
  • *******
  • Posts: 5,693
Re: CB836 - Oil line routing
« Reply #4 on: February 05, 2017, 04:01:32 PM »
The pump feed should not go above the tank to avoid airlock. The pump is not so efficient at pumping air. You should have a free gravity feed to the pump.

Offline Haybus

  • Enthusiast
  • **
  • Posts: 177
Re: CB836 - Oil line routing
« Reply #5 on: February 06, 2017, 12:58:11 PM »
Can't see the feed line, but it's probably just hidden in the 2nd picture. The plumbing looks the same as mine, except my cooler lines are above the cooler. I remember it taking awhile to fill the cooler and lines before seeing much flow back into the tank. Might be worth rigging up a pressure gage to make sure the pump is supplying decent pressure. Mine runs at a 70-80psi.

Alan
75 CB750
76 KZ900

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,560
  • Big ideas....
Re: CB836 - Oil line routing
« Reply #6 on: February 06, 2017, 04:14:54 PM »
What size hose is that.....-8 , -10?
Owner of the "Million Dollar CB"