Oil flow issue
- G3L1946
- Member
- Posts: 542
- Joined: Tue Feb 25, 2020 1:57 pm
- Location: North Yorkshire UK
Oil flow issue
Hi all,
Just started up my latest acquisition, a 1947 G3L. I think it has been in dry storage for some time so I’ve changed the engine oil and given it a good inspection. Eventually started it ( different procedure than my ‘55 ) and ran fine. However, inspection of the oil return to tank revealed no return. Waited about 3 minutes with no return so turned engine off. Did I wait sufficiently long enough? What’s the next step to check oil circulation without running risk of damage!
Thanks for any advice, no matter how obvious,
Steve
Just started up my latest acquisition, a 1947 G3L. I think it has been in dry storage for some time so I’ve changed the engine oil and given it a good inspection. Eventually started it ( different procedure than my ‘55 ) and ran fine. However, inspection of the oil return to tank revealed no return. Waited about 3 minutes with no return so turned engine off. Did I wait sufficiently long enough? What’s the next step to check oil circulation without running risk of damage!
Thanks for any advice, no matter how obvious,
Steve
- ajscomboman
- Member
- Posts: 3961
- Joined: Mon Jan 01, 1990 12:00 am
- Location: HAMPSHIRE UK
Re: Oil flow issue
Heart stopping isn't it. If you drained the tank and sump it takes for an eternity to see a return flow. Start it and watch the oil level, if it's dropping it'll do no harm to let it idle till the return eventually decides to scavenge.
- G3L1946
- Member
- Posts: 542
- Joined: Tue Feb 25, 2020 1:57 pm
- Location: North Yorkshire UK
Re: Oil flow issue
I think my heart did stop mate! I soon break into a sweat if I think it’s all going pear shaped!
So, need to wait a bit longer then? The old oil was completely drained out along with the sump. This was made easier as a previous owner has replaced the sump bung with a nice, miniature, brass tap!
Steve
So, need to wait a bit longer then? The old oil was completely drained out along with the sump. This was made easier as a previous owner has replaced the sump bung with a nice, miniature, brass tap!
Steve
- ajscomboman
- Member
- Posts: 3961
- Joined: Mon Jan 01, 1990 12:00 am
- Location: HAMPSHIRE UK
Re: Oil flow issue
it'll feel like you've run a marathon! I think Clive Turner clocked around 5-8 mins before his decided to cough and splutter! I have gone 5 mins before a return has belched into life. Just let it do it's thing, as long as the oil is dropping it's going into the motor.
- jackstringer
- Member
- Posts: 323
- Joined: Thu Oct 08, 2009 6:09 pm
- Location: Somerset UK
- Contact:
Re: Oil flow issue
Going on some back of the sandwich packet maths (lunch time). ~5ml/s at tickover, the engine has ~1ltr of oil in it so I would expect it to take 3m 20s just to fill the bottom of the crank etc.
Thankfully the oil drips down to the crank so all the bits that need it get some oil not long after starting but it takes a while before there is enough for the engine to pump back into the tank.
Thankfully the oil drips down to the crank so all the bits that need it get some oil not long after starting but it takes a while before there is enough for the engine to pump back into the tank.
- G3L1946
- Member
- Posts: 542
- Joined: Tue Feb 25, 2020 1:57 pm
- Location: North Yorkshire UK
Re: Oil flow issue
Hi guys,
Thanks for the reassurance. Heart re started and is now ticking over nicely. A hot cup of Yorkshire tea and I’ll give it another go.
Jack, your maths is better than mine!
Steve
Thanks for the reassurance. Heart re started and is now ticking over nicely. A hot cup of Yorkshire tea and I’ll give it another go.
Jack, your maths is better than mine!
Steve
- Ralph
- Member
- Posts: 87
- Joined: Tue Jan 07, 2020 7:00 pm
- Location: UK
Re: Oil flow issue
Slacken the rocker feed oil should reach there much quicker as its on the feed side, it takes longer for this oil
to drain back to the engine sump and back to the tank, it also as to fill the filter before showing at the tank.
if it's coming out of the rocker feed nip it back up and wait a bit longer at least you know the pressure feed
is very likely ok.
to drain back to the engine sump and back to the tank, it also as to fill the filter before showing at the tank.
if it's coming out of the rocker feed nip it back up and wait a bit longer at least you know the pressure feed
is very likely ok.
- G3L1946
- Member
- Posts: 542
- Joined: Tue Feb 25, 2020 1:57 pm
- Location: North Yorkshire UK
Re: Oil flow issue
Thanks Ralph,
Giving it another go tomorrow when she’s finished giving me ‘important jobs’ to do !
Steve
Giving it another go tomorrow when she’s finished giving me ‘important jobs’ to do !
Steve
-
- Member
- Posts: 8559
- Joined: Wed Sep 01, 2004 1:00 am
- Location: WEST SUSSEX UK
Re: Oil flow issue
Relax. You're not alone. It's a Frequently Asked Question.
To put your mind at rest see Clive's experience posted in 2014 and others' comments here in the ..........'Frequently Asked Questions' forum:
viewtopic.php?t=13368
To put your mind at rest see Clive's experience posted in 2014 and others' comments here in the ..........'Frequently Asked Questions' forum:
viewtopic.php?t=13368
'There is a tide in the affairs of men
Which taken at the flood............'
Which taken at the flood............'
- G3L1946
- Member
- Posts: 542
- Joined: Tue Feb 25, 2020 1:57 pm
- Location: North Yorkshire UK
Re: Oil flow issue
Ahhhh! What a good thread, should have found that! Explains ,hopefully, my experience is, by no means, unique!
Steve
Steve