Low engine oil pressure

Simon

Here is an article about The Reasons for low engine oil pressure
http://www.filtercouncil.org/techdata/tsbs/83-2R2.html

according to our service manual
For Fiat 16v turbo
Engine oil grade during specification is Selenia 10W40
oil temp at 100Deg C, oil pressure is 1.1bar, at 4000rpm, 5bar

For Fiat 20v turbo
Engine oil grade during specification is Selenia 20K 10W40
oil temp at 100Deg C, oil pressure is 1bar, at 4000rpm, 4bar

Simon

I am thinking, still thinking
換新油, 換新油泵. 出現現象係:
油壓低, 油溫高

Simon

Anyone knows if the 20v turbo oil pressure relief valve is a built-in in the oil pump or is fitted in engine block?

Simon

除一般原因外, 還有可能是
油底內的油泵咀砂網有障礙物. 令吸油不順.
而吸油不順, 令運油量減少, 結果不夠油去冷卻, 油溫因而上升.

可以做的是, 拆下油底, 檢查吸油咀和直至油泵的連接油路.

jockey

3# Simon

油餅的名稱是 Valve, 會否是此東西失效而做成呢?

Simon

我懷疑呢舊野塞左。
不過未知有咩可以塞住。
想問最近有無用野洗引擎內部？

jockey

6# Simon


呢舊都係全新

jockey

7# jockey
塞左唔係壓力大左咩??

Simon

塞左會吸唔夠油上個泵度, 個泵出現氣泡, 壓力低左, 少左油, 油溫自然高.
不過如果新嘅唁應該塞.
我再唸.

Jason16VT

Anyone knows if the 20v turbo oil pressure relief valve is a built-in in the oil pump or is fitted in engine block?
Simon 發表於 2009-5-20 22:33

The pressure relief valve is built-in in the oil pump. That is what's wrong with Letsrock oil pump.

Simon

not let's rock.

letsrock

not let's rock.
Simon 發表於 2009-5-20 23:59

What is the situation then?  coz after the change of oil pump, my pressure at idle is about 2-2.5 bar.  when Rev> 1K, pressure at 3, while oil temp seems to be slightly lower than before, at about 60 average.

coupeelvin

Do you think the Oberon engine flush can help you?

Simon

純粹估下, 可能個油冷有氣.
因為整車時車頭向上, 放油後油冷內油完全放盡.
而入油時油冷頂部空氣未能排出, 令油冷只有半成冷卻, 令油溫高.
又可以試下, 拆下油冷, 掉轉佢, 油喉向天, 鬆開喉咀放氣.