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[Datsun 1200 encyclopedia]

Cowl

From Datsun 1200 Club

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Category: Body

The cowl is the part of a car body between the engine compartment and the dash face. The cowl includes the firewall, cowl top panel, and upper & lower dash panels -- but not the dash itself. For the Datsun 1200, the cowl is where fresh air for ventilation is drawn.

Contents

Also See

* Bonnet (hood) for engine covering
* Cowl Top Grille 
* Ventilation
* Tunnel which is built of Lower Dash + Front Floor

Firewall & Dash

The steering post bracket bolts to the firewall.

These parts make up the Cowl:
23934.jpgAlbum 23934

  • Cowl Top
  • Dash-Upper
  • Dash-Lower
  • Dash-Side

19384.jpgAlbum 19384

The dash-side has openings for the optional speaker and the upper and lower door hinges 28828.jpgAlbum 28828 28838.jpgAlbum 28838

10146_4bfa3c29a9c04.jpgPost 318721

View from engine compartment:
1759.jpgAlbum 1759

View from inside cabin:
11732.jpgAlbum 11732

The water box is also known as the ventilation plenum -- it is where air enters the cabin. The large oval hole in the center is for the heater (or ventilator). The cowl vents are located at the base of the windshield due to aerodynamic reasons.

Cabin air Inlet
174_5bf7ce2b1d58c.jpgPost 489971

Normally, rainwater goes in through the top through the Cowl vents and falls onto the topside of the Upper Dash panel. From there it runs out a vent hole on the outside of the panel near the guards (fenders).

174_5bf7ce83697dd.jpgPost 489971 174_5bf7cef472726.jpgPost 489971 174_5bf7d05063b25.jpgPost 489971

Lower Dash panel:
4663.jpgAlbum 4663 4661.jpgAlbum 4661

In this photo, the Reinforcement has been removed, and you can see how the hoodledge joins with the firewall and radiator panel to form the engine compartment:
4665.jpgAlbum 4665

How the hoodledge (inner fender) ties in to the A-pillar:
23935.jpgAlbum 23935

The dash unit mounts via three brackets welded to the firewall
5044.jpgAlbum 5044

Insulation

174_5ac2dab230d16.jpgPost 487976

  • Low-density Fibreboard (LDF) insulation is used on the inside of the firewall.
  • Medium-density fibreboard is used on the Kick Panel
RHD 4-DR SEDAN, WAGON, EARLY UTE
67900-H1000 ASSY-DASH INSULATOR LH
67901-H1000 ASSY-DASH INSULATOR RH
LHD 2-DR SEDAN, COUPE
67900-H1600 ASSY-DASH INSULATOR RH
67901-H1600 ASSY-DASH INSULATOR LH

Repairing Water Box

Water comes in though the vents behind the bonnet, then runs down to a hole that is there to let it out. If this is rusted, it will instead leak down onto the fenders.

Part Numbers

* 66301-H1000 PANEL-cowl top JAPAN
* 66301-H1600 PANEL-COWL TOP USA
* 66810-H1001 PLATE-BAFFLE COWL TOP RH
* 66811-H1001 PLATE-BAFFLE COWL TOP LH
* 24426-H1001 ASS'Y-BRACKET, battery
* 24427-H1001 STAY-BATTERY BRACKET
  * 24427-H1000 STAY-BATTERY BRACKET
  * 77720-89910 BOLT-SPECIAL

RHD

67300-H1000 ASS'Y-PANEL, dash, lower
67300-H1021 ASS'Y-PANEL, dash, lower Automatic
* 74306-H1020 ASS'Y-PANEL, A/T floor cover, front
46570-H1001 ASS'Y-BRACKET, pedal & steering post
* 81-10620-62 BOLT-with lock washer (fixing reinforcing & stay) (8)
46575-H1001 BRACKET-clutch cable
46582-H1000 PACKING-clutch cable bracket
* 83-10614-62 SCREW (3)
* 89-15436-1 WASHER-plain (3)

LHD

67300-H1600 ASSY-PANEL DASH LOWER
67300-H1601 ASSY-PANEL DASH LOWER
67300-H1922 ASSY-PANEL DASH LOWER
67300-H1921 ASSY-PANEL DASH LOWER
46570-H1600 ASSY-BRACKET PEDAL & STEERING POS 

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This page has been accessed 11,953 times. This page was last modified 10:22, 22 May 2023. Content is available under Datsun 1200 Club.