Author Topic: Oil issues  (Read 1337 times)

Offline Seabeowner

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Re: Oil issues
« Reply #15 on: April 20, 2018, 09:34:16 AM »
Steve, the three screws holding the pump can be tough. Maybe do it on a warm engine with a good fitting impact driver. I'd try changing the pressure switch first as that will be quick and on the pump anyway.
Phil
1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline Nurse Julie

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Re: Oil issues
« Reply #16 on: April 20, 2018, 10:01:08 AM »
Hey Julie could I get a set of O-rings as well?
PM sent
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Offline Nurse Julie

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Re: Oil issues
« Reply #17 on: April 20, 2018, 10:08:18 AM »
Can you PM me details as well pls Julie.
PM sent
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
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Offline MrDavo

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Re: Oil issues
« Reply #18 on: April 20, 2018, 10:18:49 AM »
Quote
The oil pump is like the human heart, parts start wearing out and leaking after 40+ years but you don't know you have a problem until, possibly, it's too late.

Do you have heart rebuild kits?
Are they primed by filling with vaseline first?

Your peformance with the oil light is how my CB750 was behaving before it was stripped, pure and simple low oil pressure, in my case caused by running with wrong clearances after a rebuild.
« Last Edit: April 20, 2018, 10:21:14 AM by MrDavo »
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Offline Nurse Julie

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Re: Oil issues
« Reply #19 on: April 20, 2018, 10:20:56 AM »
Quote
The oil pump is like the human heart, parts start wearing out and leaking after 40+ years but you don't know you have a problem until, possibly, it's too late.

Do you have heart rebuild kits?

Are they primed by filling with vaseline first?

I'm still working on those kits Dave  ;D ;D ;D
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline SteveW

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Re: Oil issues
« Reply #20 on: April 20, 2018, 10:21:51 PM »
Steve, the three screws holding the pump can be tough. Maybe do it on a warm engine with a good fitting impact driver. I'd try changing the pressure switch first as that will be quick and on the pump anyway.

Thanks, I'll warm it up first and take it easy.

Where abouts in Maidenhead are you? I spent all my Childhood in Littlewick Green.
1974 CB550 K0
1980 CB650
2000 CBR929RR Fireblade
1966 Lambretta LI150 Series 3
1981 RD350LC
1972 Raleigh Chopper
1974 Raleigh Tomahawk
2011 Henry Hoover

Offline Trigger

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Re: Oil issues
« Reply #21 on: April 20, 2018, 10:52:37 PM »
Steve, the three screws holding the pump can be tough. Maybe do it on a warm engine with a good fitting impact driver. I'd try changing the pressure switch first as that will be quick and on the pump anyway.

You should never use a impact on a oil pump, they can crack very easy. Use a PH3 bit, tap it home and turn with a socket. Try this while the pump is still on the bike because, once the pump is off, it is very hard to clamp it to stop it moving while trying to get those 3 little suckers out  ;)

Offline Seabeowner

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Re: Oil issues
« Reply #22 on: April 21, 2018, 09:28:09 AM »
Steve, I'm out the other side, about 1/2 mile north of the Thames bridge.
Trig, You've done more than me and I haven't had to use it on the cover, but I have found them to be the most stubborn screws on the whole bike, particularly if someone has already been at them and are slightly mangled. Most of the engines I have done have been well neglected and butchered by previous owners and maybe lying in a shed for 20 years. Nothing else has worked for me.

Phil
1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline paulbaker1954

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Re: Oil issues
« Reply #23 on: May 11, 2018, 12:55:36 AM »
Steve, I'm out the other side, about 1/2 mile north of the Thames bridge.
Trig, You've done more than me and I haven't had to use it on the cover, but I have found them to be the most stubborn screws on the whole bike, particularly if someone has already been at them and are slightly mangled. Most of the engines I have done have been well neglected and butchered by previous owners and maybe lying in a shed for 20 years. Nothing else has worked for me.

I am with Phil here.

On my rebuild I intended to change the o ring etc but whatever I tried I could not shift those 3 screws and eventually gave up. Thankfully all was ok but I dread ever having to get them off at a future date. They were without doubt the worst 3 fastenings in the whole engine!!!
If you think there's light at the end of the tunnel it's usually another train !!

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Offline SteveW

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Re: Oil issues
« Reply #24 on: May 11, 2018, 08:58:23 AM »
I couldn’t shift the 3 screws either. I took the risk and drilled the heads off, once the pump was out the way the studs could be wound out by hand.

My strange oil light fault seems to have been fixed, not sure if it was the o rings or the pressure switch or a combination of the two.
1974 CB550 K0
1980 CB650
2000 CBR929RR Fireblade
1966 Lambretta LI150 Series 3
1981 RD350LC
1972 Raleigh Chopper
1974 Raleigh Tomahawk
2011 Henry Hoover

 

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