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HOW TO REBUILD A LC HEATER BOX..

Started by _mikecatts_ , Jul 15 2015 02:54 PM

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23 replies to this topic

#1 _mikecatts_

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Posted 15 July 2015 - 02:54 PM

Hi all.. Just me..

Thought youd like to see a complete heater box rebuild..

Pics tell the story.. sorry its a double post, posted in my rebuild as welll.

Attached Files

2015-07-06 10.10.25.jpg 43.66K 79 downloads
2015-07-08 10.58.47.jpg 35.57K 35 downloads
2015-07-12 08.30.02.jpg 40.63K 84 downloads
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2015-07-15 07.30.47.jpg 43.68K 30 downloads
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2015-07-15 08.02.01.jpg 40.59K 41 downloads
2015-07-15 08.02.14.jpg 42.66K 33 downloads

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#2 _mikecatts_

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Posted 15 July 2015 - 02:57 PM

more pics.

Black paint is POR 15.. more rust protection the better.. over the zinc.

forget.

had the heater core tested.. alls good there.

Attached Files

2015-07-15 08.02.25.jpg 36.31K 33 downloads
2015-07-15 08.02.32.jpg 28.91K 28 downloads
2015-07-15 08.46.37.jpg 33.27K 39 downloads
2015-07-15 08.47.01.5.jpg 41.76K 31 downloads
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2015-07-15 10.20.17.jpg 26.25K 22 downloads
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2015-07-15 11.22.46.jpg 36.83K 25 downloads
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2015-07-15 11.25.06.jpg 34.5K 27 downloads

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#3 _greg2240_

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Posted 15 July 2015 - 03:26 PM

gr8 as usual Mike, quick querie, you have the black wire going to the fan wire and red one going to the chassis, is that how they go? just bought one myself and would like to test it, T.I.A

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#4 _mikecatts_

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Posted 15 July 2015 - 03:41 PM

There is an extension lead on the motor.. pic is decieving.

if u look there are two plugs inside the case.. one is for neg and the other is for pos... doesnt matter which way to test but have to get right on assembly to run correct way.

The motor itself is isolated form any current and only connected via the two plugs

Attached Files

2015-07-09 19.41.37.jpg 27.13K 25 downloads
2015-07-09 14.12.36.jpg 31.47K 32 downloads

Edited by mikecatts, 15 July 2015 - 03:42 PM.

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#5 _greg2240_

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Posted 15 July 2015 - 05:04 PM

gotcha. cheers

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#6 gad05

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Name:Graham
Location:Brisbane
Car:73 lj 2 door , 74 lj sedan.
Joined: 11-January 09

Posted 15 July 2015 - 09:36 PM

Great work as usual Mike.Just wanted to know where you bought the foam for you're heater box, is it a special type?

Cheers Graham.

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#7 _mikecatts_

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Posted 16 July 2015 - 04:58 AM

Clark Rubber.. The open pored foam is AIRCONDITIONER foam and the gaskets are as close a match as I could get to the original gaskets.. dont get the really heavy rubber, go for the lighter 6mm one as it compressors better..

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#8 gad05

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Name:Graham
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Car:73 lj 2 door , 74 lj sedan.
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Posted 16 July 2015 - 09:49 AM

Thanks Mike

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#9 lx308

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Name:Tony
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Car:Nuffin. Goin touring.
Joined: 25-March 07

Posted 18 July 2015 - 09:04 PM

Do you seal the rubber with anything when fitting the box back in the car, Mike?

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#10 _mikecatts_

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Posted 19 July 2015 - 02:12 AM

Do you seal the rubber with anything when fitting the box back in the car, Mike?

I havnt got that far yet..

Ive pulled a few of these cars apart and as far as I can tell..Originally there was no extra sealer on the rubbers.. Ill probally just use a bit of the strip caulk on the vent in only.. and ALL bolts/screws, etc..

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#11 Indy Orange

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Name:Paul
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Posted 20 July 2015 - 10:28 PM

Could admin relocate this to the LC-LC to the helpful technical articles section .Very helpful.

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#12 Indy Orange

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Posted 20 July 2015 - 10:30 PM

Could Amin pin this to the LC-LJ helpful technical section please.

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#13 _sunburst73-xu1_

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Posted 21 July 2015 - 07:35 PM

Hi Mike

Probably a trivial thing but with all the Heater boxes you have done have you seen any markings on them?(date codes and some sort of inspection code)

I have seen a few different types whether they were made at different places or not who knows??

A couple of pics of 2 different ones I have seen.

Cheers Dane

Attached Files

heat1.jpg 144.85K 11 downloads
heat2.jpg 145.7K 16 downloads

Edited by sunburst73-xu1, 21 July 2015 - 07:36 PM.

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#14 _Agent 34_

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Posted 21 July 2015 - 07:44 PM

Dane,

do you recon that this mark is an " engine bay inspection date" or a completion date on assembly line ?

It just seems weird that you would stamp a heater box as it's just a component of the engine.

could it be that the " total of all the other marks in the engine bay " result in this final stamp ?

just a thought - i have absolutely no evidence of this

g

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#15 _mikecatts_

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Posted 22 July 2015 - 03:01 AM

Only marks I seen were some texta in black on the inside of the LJ one, cant remember what it was. Ill look next time I open as it needs sealing...

No white writing, then again the heater boxes I fixed were pretty weathered...

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#16 _sunburst73-xu1_

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Posted 22 July 2015 - 06:27 AM

Thanks Mike

Hi Grant

I would be assuming that theses marking and date codes would of been stamped on there prior to fitting and installing to the car, each component that's in the engine bay for example sake has their own date code to when they were made not fitted to the car.

Just my thoughts

cheers Dane

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#17 _Gr8LJ_

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Posted 27 May 2020 - 12:31 PM

This is an insanely helpful thread. Thank you!
Question, did you buy new fixings? Referring mainly to the 3 long Coach bolts. If so where did your purchase? I’ve had a hard time trying to find them. Bolt places tell me I won’t have any luck. Will need the clips too.

Cheers,

Brent

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#18 71xu1

Dave

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Location:Western Australia
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Joined: 24-August 06

Posted 27 May 2020 - 07:41 PM

Inspection date was done on final inspection of vehicle that's why the stamp is upside down.

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#19 nanbar

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Name:Nando Barbanera
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Car:LC 2 door V8
Joined: 06-February 19

Posted 13 November 2024 - 04:34 PM

What type of grease lubricant should be used for the the inner rotating linkage mechanism. I have seen pictures of a white grease but I dont know what type it is.

Cheers

Nando

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#20 S pack

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Name:Dave
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Car:73 LJ
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Posted 13 November 2024 - 04:41 PM

What type of grease lubricant should be used for the the inner rotating linkage mechanism. I have seen pictures of a white grease but I dont know what type it is.

Cheers

Nando

The white grease is typically a Zinc Oxide grease.

What is zinc oxide grease used for?

It can be used as a multi-purpose grease for many applications (up to 110oC). It protects moving parts against wear from shock loads in high load service conditions. Zinc Oxide Grease prevents scuffing and further assists in wear prevention due to the high performance EP additives.

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#21 nanbar

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Name:Nando Barbanera
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Car:LC 2 door V8
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Posted 13 November 2024 - 04:47 PM

The white grease is typically a Zinc Oxide grease.

What is zinc oxide grease used for?

It can be used as a multi-purpose grease for many applications (up to 110oC). It protects moving parts against wear from shock loads in high load service conditions. Zinc Oxide Grease prevents scuffing and further assists in wear prevention due to the high performance EP additives.

Thanks Dave. I was just reading about lithium grease, this could also be an option. I have a mate who used to work for Castrol selling lubricants, I am waiting for him to call me back also.

Cheers

Nando

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#22 meanmachine72

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Name:Jono
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Posted 14 November 2024 - 08:33 AM

I had my heaterbox done by a fella on this forum, he did a great job

he had stickers made up to go on heater fan motor and also got a

Inspection stamp made up to stamp some white ink on side of heater box

so i picked a date that would match my car and as a personal Touch

i had My Initials Added as being the inspector that gave it the OK

DSC01682.JPG 99.12K 1 downloads

Edited by meanmachine72, 14 November 2024 - 08:34 AM.

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#23 ewe-one

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Name:Ross
Location:Wellington NZ
Car:LJ
Joined: 16-August 08

Posted 14 November 2024 - 01:16 PM

Thats the third type of insp stamp I've seen. Alway thought this was the inspection date of the heater box but makes sense that it is the vehicle inspection date. Thinking about it the heater inspection date is actually on the fan motor. BTW the first pic (25-5-73) is off a trentham built LJ.