|
300/66 Series General Forum for the Volvo 340, 360 and 66 cars |
Information |
|
piston blow-by flow ratesViews : 1269 Replies : 2Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Oct 14th, 2002, 15:40 | #1 |
Member
Last Online: Jun 16th, 2020 17:21
Join Date: Jan 1970
Location: reading
|
piston blow-by flow rates
My 340 has a lot of crancase pressure when idling ,noticed by removing oil filler cap . I have measured it with a rotameter flow meter at 7 litres per minute but do not know what it should be.
The only figure I can find is for diesel engines which they quote 27 litres per minute . Any body got any rough figure for petrol engines in general. The cylinder pessures are all in spec at 160 psi but blow-by rates is a better test for worn rings. Thanks, Steve |
Oct 15th, 2002, 09:19 | #2 |
Forum Support Team
Last Online: May 28th, 2024 10:43
Join Date: Jan 1970
Location: Glasgow, London
|
RE: piston blow-by flow rates
I'm sorry I don't have any figures for that, but IMO you should be getting air drawn IN through the filler cap if all is in order with the PCV system. Maybe there is a block somewhere. Check and clean.
Sorry I can't be more help. Andy |
Oct 29th, 2002, 23:39 | #3 |
Master Member
Last Online: Feb 24th, 2019 17:59
Join Date: Dec 2001
Location: Northampton
|
RE: piston blow-by flow rates
I agree with the above. 27 litres per minute for a diesel though?? Thats a litre every 2 seconds which is one hell of a volume of gas for any ventilation system to deal with on the tiny orifice on a manifold. Cheers Nige
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|