Skoda Fabia

Since 2000 of release

Repair and car operation

2.13.4. Compression check

THE GENERAL DATA

The compression and difference of its values on cylinders shows degree of deterioration of the engine. Measurement of a compression is better for spending at servicing deport.

Definition of degree of deterioration of the engine on a compression

The engine	Compression, МПа
	The new engine	Deterioration limit	Maximum permissible difference of values in cylinders
Petrol 1,0 l, 37 kw and 1,4 l, 50 kw	Not more low 1,2	0,75	No more than 0,3
Diesel 1,9 l, 74 kw	2,5 – 3,1	1,9	No more than 0,5

PERFORMANCE ORDER

1. Remove the top casing of the engine (subsection 2.1 see). 2. At petrol engines of 1,0 l, 37 kw and 1,4 l, 50 kw disconnect колодку 1 with wires from the module of 2 ignitions, turn out spark plugs (subsection 10.3.3 see) and take out a safety lock №35 of the block of safety locks. 3. At the diesel engine of 1,9 l, 74 kw disconnect колодку a plait of wires of pumps-atomizers from a plait of wires, turn out candles накаливания and instead of candles screw a special adapter. 4. Connect the device for compression measurement. 5. Scroll the engine a starter until on a device scale pressure is not stabilised. Thus at the petrol engine it is necessary to press an accelerator pedal against the stop. 6. Similarly check up a compression in other cylinders. 7. Disconnect the device for measurement of a compression and establish all removed details. 8. Clear memory of malfunctions of the block of engine management.

The inhaling moments, Нм

Engines of 1 l, 37 kw and 1,4 l, 50 kw:
– шатунный a bolt of the engine of 1,0 l	20 to tighten on 90
– A nut шатунного a bolt of the engine of 1,4 l, 50 kw	40
– A bolt of fastening of the case of covers of radical bearings of the engine of 1,4 l, 50 kw	75
– A bolt of fastening of the holder of a back epiploon	8
– A bolt of fastening of a flywheel	30 to tighten on 90
– A fastening bolt теплоизоляционного the screen	5
– A bolt of fastening of the gauge of a detonation	20
– A bolt of fastening of the receiver of the oil pump to the block of cylinders	8
– A bolt of fastening of a pulley of a cranked shaft	100
– A bolt of fastening of a cover of distributive gear wheels	5
– A bolt of fastening of gear wheels of a camshaft	25
Engines of 1,4 l, 55 and 74 kw:
– шатунный a bolt	20 to tighten on 90
– A bolt of fastening of the receiver to the oil pump	10
– A bolt of fastening of the receiver to the block of cylinders	10
– A bolt of fastening of the gauge of a detonation	20
– A bolt of fastening of disks of coupling	60 to tighten on 90
– A bolt of fastening of the oil pump	12
– A bolt of fastening of an arm of the generator	50
– A bolt of fastening of the tension device:
• М8	20 to tighten on 90
• М10	45
– A bolt of fastening oil картера	13
– A stopper маслосливного apertures	30
– A nut of fastening of a tension roller	45