Heater

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Categories: Heating And Ventilation Systems | Body Electrical System

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Revision as of 09:15, 20 February 2016 ddgonzal (Talk | contribs) (->Operation) <- Previous diff		Revision as of 01:26, 9 April 2016 ddgonzal (Talk | contribs) (->Operation) Next diff ->
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-	USA 1972 [[Owners manual]] (see pages 18-19 for details):	+	&nbsp;&nbsp;1972 USA owner's manual (see pages 18-19):
-	<br>[http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972 http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_00_cover.jpg] [http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/18.jpg http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_18.jpg] [http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/19.jpg http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_19.jpg]<blockquote><hr>Comfort and Convenience<hr></blockquote></td></tr></table>	+	&nbsp;&nbsp;[http://datsun1200.com/modules/mediawiki/index.php?title=Owners_manual#Contents http://s297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_00_cover.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/18.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_18.jpg] [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/19.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1972/th_19.jpg]<blockquote>Comfort and Convenience</blockquote></td></tr></table></blockquote></td><td></td></tr></table>
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	TIP: Pull heater level out to switch fan speeds.		TIP: Pull heater level out to switch fan speeds.

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Revision as of 01:26, 9 April 2016

Heater was optional in the Standard model for most countries. All USA models came with a heater (by law).

Contents 1 Overview 2 Operation 3 Heater Inspection 4 Control Mechanism 5 Heater Cock 5.1 Part Numbers 6 Core 6.1 Part Numbers 7 Heater Hoses 7.1 B110 7.2 B120 7.3 B210 8 Removal 8.1 Heater Bypass 9 Alternatives 10 Heater Motor & Fan 10.1 Wiring

Overview

Coolant Flow to Heater

Heater Hose Dimension
ID: 13mm
OD: 18mm

Radiator hose inlet
ID: 22.5mm
OD: 27mm(flare 29mm)
Diameter at block end: 26mm
Length: 162mm

Heater hose inlet
ID: 14mm
OD: 16mm(Flare 17.5mm)

Operation

1972 USA owner's manual (see pages 18-19):    Comfort and Convenience

TIP: Pull heater level out to switch fan speeds.

Also see: Ventilation

full

full

album

PUSH control knob 27017-G1000
full

Heater Inspection

Heater core:

• Leaks (before removing, check for leaks in passenger area, under carpet, on firewall cardboard, etc)
• Flow (ensure it is not plugged). You can test similar to radiator blocked test
• Clean out debris in exterior of core

Hoses: Check for cracks, overly soft hoses, tight clamps

Flow valve: ensure it opens & closes easily through entire range. Also check linkage for easy and complete movement (before taking apart)

Air ducts: Ensure they are clean and connected properly

Electrical: Ensure fan spins at both High & Low speed

Coolant Thermostat: Test

Control Mechanism

TEMP (lever with temp switch), MODE (defrost/heater lever)

CONTROL ASSY 27130
27135-H1000 JAPAN
27135-H1600 COMP-CONTROL HEATER USA

HOSE
27161-G1000 < 27161-H1001 HOSE-DEFROSTER < 27161-H1000

ヒーター ブロアー スイッチ Heater Blower Switch

full

full

full

Heater Cock

photo

photo

also see: photo gallery

Alternative: 1989-1990 Commodore part from Repco can be used for the hose to this version of the heater cock non-Japan heater cock

Part Numbers

Heater cock

• X2160-30600, X2161-30600 ASSY-VALVE WATER CONTROL B110 USA $18 USD
• 27017-B8520 COCK- ASSY-FRONT HEATER 7510- B120

B120 Sunny Truck

B110 Coupe/Sedan

B210

• 27017-H5000 B210
• 27017-N5000 B210 w/Aircon

Compare to other similar units:

• Datsun 240Z

  

Core

The heater core is like a small radiator. The heater fan removes heat and blow it into the passenger compartment.

Part Numbers

Same part number 1970-1994 1200 sedan/ute/coupe JDM and USDM markets.

• 27013-H1001 CORE ASSY-FRONT HEATER

  

B210 is 27013-H5000, so a different part.

Heater Hoses

The heater hoses are 1/2 inch inside diameter hose. However, the original Nissan hoses were thin wall. Standard 1/2 inch hose is thick wall and will work but has to be forced through the firewall grommets.

Also, the original Nissan thin-wall hoses had a braided cover like this:

Original long heater hose is braided. Compare to the rear heater hose, which has been replaced with a plain hose.

Outlet (long) heater hose

Outlet Connector (fits in between the two lower radiator hoses):

• 27051-E0100 CLIP-WATER (2) [for radiator hoses]
• 08723-12000 CLAMP-HOSE (1) [for heater hose]

Inlet connector fitting (back of cylinder head)

B110

• 27021-H1000 HOSE-WATER [to outlet, front of engine] $7.50
  • 27078-B2000 CLIP (2) [Fixing hose to air cleaner bracket]
  • 08510-51012 SCREW-TAPPING (2)
  • 08915-43510 WASHER-PLAIN (2)
• 27075-H1000 CONNECTOR-WATER OUTLET [lower radiator hose T-connector] $9.97
• 27070-H1000 CONNECTOR-WATER INLET [rear of cylinder head] $4.13
• 27020-G1900 27020-H1000 HOSE-WATER [from inlet to cock] $9.88
• X2160-30503 HOSE-WATER [from cock to core] $11.13
• B7017-B8500 X2161-30600 X2160-30600 ASSY-VALVE WATER CONTROL $18.17
• 27363-18200 27363-18001 GROMMET-HEATER (2) $0.53
• 08723-12000 CLAMP-HOSE (5) $2.40
• 08723-13600 CLAMP-HOSE (2) $2.57 [fixing hose to cock]

Complete set is about $80: 21501-H1000,21506-H1101,B7017-B8500,27022-H1000,27020-G1900,27075-H1000,B7021-H1002,27363-18001,01555-00841,01555-00281,27070-H1000

B120

Late from Oct 1989

• 92402-95W00 HOSE-FRONT HEATER, 5 [outlet (long) hose] NICHIRA B517
• 27363-18200 GROMMET-RUBBER (2)
• 01555-00221 CLAMP (4) 8910-
• 92520-G1900 [for rear portion of hose]
  • 08120-61228 BOLT
• 92520-G1900 CLAMP 9810- [for strut tower]
  • 08543-61012 SCREW
• 27078-B2000 CLAMP [to air cleaner bracket]
  • 08110-61610 BOLT
  • 08911-10637 NUT

B120 early to Oct 1989

• 92402-G1900 HOSE-FRONT HEATER, 5 NICHIRA B517
  • supercedes 92402-G1601, 92402-G1660, 92402-G1661
• 27363-18200 GROMMET-RUBBER (2)
• 08723-12000 CLAMP (3) -8910
• 08723-12200 CLAMP (1) -8910
• 01553-00013 CLAMP -8910 [clamp to hot air tube]
• 27078-B2000 CLAMP [to air cleaner bracket]
  • 08110-61610 BOLT
• 

  Mid-year B120.

  • 1. Inlet hose 4
  • 2. Outlet hose 5
  • 3. Outlet hose connects to block water pipe

B120 Inlet Hose

• 27020-H1000 HOSE FRONT HEATER, 4 [inlet (short) hose] 7510-8109
• 27070-H1000 CONNECTOR-WATER RETURN 7510-8109
• 27020-G1900 HOSE FRONT HEATER, 4 [inlet (short) hose] 8110-
  • 27070-H5000 CONNECTOR-WATER RETURN 8110-
• 27022-H1000 HOSE-WATER

  

• 27017-B8520 COCK ASSY-FRONT HEATER

B210

By comparison, B210 parts are mostly different to Datsun 1200.

USA B210

REGULAR
X9525-30120 HOSE-WATER COCK TO CORE (NICHIRA)
27020-H5000 HOSE-WATER
27021-H6200 HOSE-WATER
HEAVY DUTY 
27020-H6110 HOSE-WATER
27021-H6211 HOSE-WATER
14801-30503 HOSE-WATER,U TYPE
X9525-30082 HOSE-STRAIGHT 

JDM Late B210

27020-H5000 HOSE-WATER HEATER 1
27021-H5000 HOSE-WATER HEATER 2

Removal

Heater was optional. If you wish to remove the heater, how is it done?

1. Drain engine coolant
2. Remove heater hose from the fitting behind the cylinder head and plug this fitting with a 1/2" rubber cap
3. Remove heater hose from the lower radiator hose tee. Plug this fitting with a 1/2" rubber cap
4. Remove heater from inside car, & plug the two holes in the firewall

Plugs can be purchased at your local auto parts store. They have a selection - just ask!
1/2" plug Firewall plug

You can either remove the fitting from the back of the head & put a plug in there, or get heater blank off rubbers & plug them both. You can get these from local Auto stores, it is 1/2" heater hose.
00931-30610 PLUG-HEATER OUTLET HOLE
Heater hose plug for cylinder head (as fitted to no-heater models)

Or the simpler way: Run a new longer hose from front to back of engine.

The most elegant way: Remove both lower radiator hoses and the heater adapter, and replace with a single-piece lower radiator hose.
buy at Bprojects

Discussion: A-series heater removal

Heater Bypass

If the heater core is leaking, the easiest fix is to bypass the heater. Connect the long heater hose to the back of the cylinder head.

You may leave it this way temporarily or permanently -- the engine runs fine either way. Just depends on whether you need the heater for de-misting the windshield.

Alternatives

Maddat sells a Universal Heater Box which is smaller than the stock unit.

Heater Motor & Fan

See Heater Motor

Wiring

See Heater Wiring

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