Renault

ENGINE BEARINGS
	CON ROD BEARING SET
	Part#
	4B7820H	4B7820HX
Sizes	STD, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Identical Halves
Material	Tri-metal Hardened steel backs
Min Std Shaft Size	1.8898 in / 48.000 mm
Max Std Shaft Size	1.8905 in / 48.020 mm
Min Std Tunnel Size	2.0310 in / 51.587 mm
Max Std Tunnel Size	2.0315 in / 51.600 mm
Max Wall at Crown	0.0696 in / 1.768 mm	0.0691 in / 1.755 mm
Max Overall Length	0.807 in / 20.50 mm
Notes
Diagram        (Top View)

Engines Renault 4 cylinder 1.7 1.8 2.0 petrol and 1.6 1.9 diesel engines
(F8M and F8Q diesel, F1N, F2N, F2R, F3N, F3P, F3R, F7P, F7R)

ENGINE BEARINGS
	MAIN BEARING SET
	Part#
	5M7807H	5M7807HX
Sizes	STD, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Identical Halves
Material	Tri-Metal
Min Std Shaft Size	2.1569 in / 54.785 mm
Max Std Shaft Size	2.1573 in / 54.795 mm
Min Std Tunnel Size	2.3122 in / 58.731 mm
Max Std Tunnel Size	2.3128 in / 58.744 mm
Max Wall at Crown	0.0765 in / 1.945 mm	0.0760 in / 1.933 mm
Max Overall Length	0.728 in / 18.50 mm
Notes
Diagram        (Top View)

Engines Renault 4 cylinder 1.6 1.7 1.8 1.9 2.0
(F1N, F2N, F2R, F3N, F3P, F3R, F4R, F7P, F7R; F8M, F8Q - diesel)

Part number 50009880.
Kolbenschmidt plain bearing measuring tape / plastic gauge kit (10 pcs.).
Measuring strips for the determination of bearing clearance for plain bearings

1. Remove the bearing cap, wipe the journal and bearing shell clear of oil.
2. Place a piece of Flexigauge across the bearing at the crown (see Figure 1).
3. Install the bearing cap and using a Torque Wrench tighten the bolts to the correct tension.
4. DO NOT REVOLVE THE SHAFT OR BEARINGS.
5. Remove bearing cap. The Flexigauge will be adhering either to the bearing or shaft.
6. Compare the width of the flattened Flexigauge with the graduation of the envelope. The figure within the graduations indicates the clearance in thousandths of an inch of millimetres, depending on which side of the envelope is used. (See Figure 2).
7. Taper is indicated when Flexigauge is wider at one end than the other, the amount of taper being the difference between the readings. The widest part of the Flexigauge represents the area of least clearance. “Barrelling” of the shaft when the Flexigauge is wider in the centre of the bearing.