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Fiat / Lancia

Lancia Delta Integrale 2.0 HF ACL Race Series connecting rod bearings 4B2904H
ENGINE BEARINGS
rods.jpg

CON ROD BEARING SET

MAIN BEARING SET

Part# Part#
4B2904H

4B2904HX

 
5M2908H

 
5M2908HX

 
Sizes STD, .025, .25 STD STD, .025, .25 STD
Oil Clearance Standard + 0.001" Extra Standard + 0.001" Extra
Half Type Identical Halves Upper & Lower
Material

Tri-metal Hardened steel backs

Tri-Metal
Min Std Shaft Size

1.9995in / 50.787 mm

2.0862 in / 52.991 mm

Max Std Shaft Size

2.0003in / 50.807 mm

2.0866 in / 53.000 mm

Min Std Tunnel Size

2.1219 in / 53.897 mm

2.2330 in / 56.717 mm

Max Std Tunnel Size

2.1226 in / 53.913 mm

2.2337 in / 56.735 mm

Max Wall at Crown

0.0605in / 1.536 mm

0.0600in / 1.523 mm

0.0726 in / 1.843 mm

0.0720 in / 1.830 mm

Max Overall Length

0.768 in / 19.50 mm

0.817 in / 20.75 mm (2908H/HX)

0.955 in / 24.25 mm (2909H/HX)

Notes - -

Diagram       
(Top View) 

2904H_000.jpg

2908H & HX - Positions 1,2,4,5

2908H_000.jpg

2909H & HX - Position 3

2909H_000.jpg

 THRUSTWASHER SET
Part# Material
Sizes Notes -
€89.00
Kolbenschmidt plain bearing measuring tape/plastic gauge 50009880

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

€13.00
ACL plain bearing measuring tape/flexigauge AG-1 (Green)
  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.
    DO NOT REVOLVE THE SHAFT OR BEARINGS.
  4. Remove bearing cap. The Flexigauge will be adhering either to the bearing or shaft.
  5. 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)
  6. 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.


€15.00
Permatex Ultra Slick assembly lubricant for engine bearings 118ml

Part number 81950
Permatex Ultra Slick assebly lubricant, lube oil for engine bearings.
Capacity 118 ml

€12.00
Lancia Delta Integrale 2.0 HF ACL Race Series main bearings 5M2908H
ENGINE BEARINGS
rods.jpg

CON ROD BEARING SET

MAIN BEARING SET

Part# Part#
4B2904H

4B2904HX

 
5M2908H

 
5M2908HX

 
Sizes STD, .025, .25 STD STD, .025, .25 STD
Oil Clearance Standard + 0.001" Extra Standard + 0.001" Extra
Half Type Identical Halves Upper & Lower
Material

Tri-metal Hardened steel backs

Tri-Metal
Min Std Shaft Size

1.9995in / 50.787 mm

2.0862 in / 52.991 mm

Max Std Shaft Size

2.0003in / 50.807 mm

2.0866 in / 53.000 mm

Min Std Tunnel Size

2.1219 in / 53.897 mm

2.2330 in / 56.717 mm

Max Std Tunnel Size

2.1226 in / 53.913 mm

2.2337 in / 56.735 mm

Max Wall at Crown

0.0605in / 1.536 mm

0.0600in / 1.523 mm

0.0726 in / 1.843 mm

0.0720 in / 1.830 mm

Max Overall Length

0.768 in / 19.50 mm

0.817 in / 20.75 mm (2908H/HX)

0.955 in / 24.25 mm (2909H/HX)

Notes - -

Diagram       
(Top View) 

2904H_000.jpg

2908H & HX - Positions 1,2,4,5

2908H_000.jpg

2909H & HX - Position 3

2909H_000.jpg

 THRUSTWASHER SET
Part# Material
Sizes Notes -
€145.00