Engine breaking vs. oil consumption?

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Engine breaking vs. oil consumption?#2185

By Peter 53 - Thu May 16, 2013 12:17 pm

- Thu May 16, 2013 12:17 pm #2185

Hi good folk,

Is there any relation between engine breaking and excessive (or more than usual) oil consumption? Something to do with increased vacuum? Compression is ok, piston rings replaced 18 months ago, just wondered if this is normal... I do go down through the gears before hitting the brakes quite a lot. Any comments appreciated.

Engine breaking vs. oil consumption?#25007

By Peter 53 - Thu May 16, 2013 1:46 pm

- Thu May 16, 2013 1:46 pm #25007

My mistake - I meant engine BRAKING, not breaking.

Engine breaking vs. oil consumption?#25008

By Dennis C - Thu May 16, 2013 2:13 pm

- Thu May 16, 2013 2:13 pm #25008

In a good unworn engine it will make no noticeable difference but if the inlet valve stem/guide is worn oil will be sucked down the gap and burnt in the engine, unless of course you have stem seals fitted. The tell tale here is most noticeable after descending a hill with the throttle closed you will get smoke evident when the throttle is opened again.

Engine breaking vs. oil consumption?#25010

By Alan R - Thu May 16, 2013 5:45 pm

- Thu May 16, 2013 5:45 pm #25010

Hi guys------ yes PETER, it's good practice to fit an inlet valve stem seal for exactly the reasons that DENNIS C gave... Conversely you don't want one on the exhaust side as this being the hottest part of the engine you need all the lube. / cooling you can get....

Engine breaking vs. oil consumption?#25016

By Peter 53 - Thu May 16, 2013 8:42 pm

- Thu May 16, 2013 8:42 pm #25016

Thanks guys, that makes sense. But what's with the links for adverts that have suddenly appeared? If you look at the words 'brakes' and 'course' they are links to some totally unrelated stuff. Is this a way for our hosts to make a bit of extra cash?

Engine breaking vs. oil consumption?#25017

By Alan R - Thu May 16, 2013 10:06 pm

- Thu May 16, 2013 10:06 pm #25017

Not on my screen !!------

Engine breaking vs. oil consumption?#25018

By Leon Novello - Thu May 16, 2013 10:19 pm

- Thu May 16, 2013 10:19 pm #25018

It is usually recommended to close the throttle regularly(as they say,`don`t run at a constant speed, vary it up and down.`) when running-in a new or rebuilt engine as this sucks up oil to the top of the cylinder aidng cooling and providing a bit of extra lubrication.

Engine breaking vs. oil consumption?#25019

By Paul M H - Thu May 16, 2013 10:22 pm

- Thu May 16, 2013 10:22 pm #25019

Quote (Not on my screen !!------) Not on mine either.

Engine breaking vs. oil consumption?#25027

By Peter 53 - Fri May 17, 2013 12:53 pm

- Fri May 17, 2013 12:53 pm #25027

This is weird! I don't have those links at my work computer, only at home... maybe one of the kids has downloaded some weird application that turns certain words into adverts? The same thing on Alan's thread with Sofiaspin's reply - the word 'smoking' is a link to some b******t advert. Cheers for your replies once again.