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LJ Heater Box seals


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#1 lx308

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Posted 16 April 2012 - 07:53 PM

Hi there,
Has anyone used this seal kit from Ebay on their heater box rebuilds? There dosent seem to be enough pieces in it.
I'm thinking the top part is where the duct goes into the middle of the firewall, the large circluar piece is for the fan motor (mine had nothing) the other 2 parts have me stumped.
The kit appears to be missing the seal for the plastic inlet duct, above the fan. The internal duct seal & the seal between the middle firewall piece & the heater box.

Any light that could be shed here would be greatly appreciated. The parts book dosent show the heater box disassembled...

Cheers.

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#2 _rogered_

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Posted 16 April 2012 - 08:06 PM

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#3 S pack

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Posted 16 April 2012 - 08:15 PM

Hi there,
Has anyone used this seal kit from Ebay on their heater box rebuilds? There dosent seem to be enough pieces in it.
I'm thinking the top part is where the duct goes into the middle of the firewall, the large circluar piece is for the fan motor (mine had nothing) the other 2 parts have me stumped.
The kit appears to be missing the seal for the plastic inlet duct, above the fan. The internal duct seal & the seal between the middle firewall piece & the heater box.

Any light that could be shed here would be greatly appreciated. The parts book dosent show the heater box disassembled...

Cheers.

Posted Image


The seal for the fan plastic cover to plenum is made of rubber not foam, hence it isn't in the kit.
The only thing I can see that could be missing is a third washer shaped seal.

#4 lx308

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Posted 16 April 2012 - 09:03 PM

Ahh soo, the washers are for the plastic duct above the fan?
What about the bottom rectangle piece?

Do you know if the rubber seal is available anywhere?



#5 _BARRY JACKPOT_

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Posted 16 April 2012 - 10:11 PM

That is the piece that goes on the bottom of the heater box

#6 lx308

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Posted 16 April 2012 - 10:34 PM

Oh right, I never had that bit on mine when I removed it either!

#7 S pack

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Posted 16 April 2012 - 10:56 PM

The washer shaped seals fit onto mounting studs protruding from the bottom plate of the heater.
Probably have to look for a good second hand rubber seal.

Have a look at Agent34's build thread. Page 6, Posts 1 & 5.
http://www.gmh-toran...2/page__st__125

Edited by S pack, 16 April 2012 - 11:00 PM.


#8 lx308

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Posted 16 April 2012 - 11:21 PM

Thanks for that. Very informative.
Cheers.

#9 _rogered_

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Posted 17 April 2012 - 12:19 PM

Stand by, i will put some photos up
Cheers
Roger

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Posted 17 April 2012 - 01:25 PM

Attached File  DSCF0034.JPG   712.33K   29 downloadsAttached File  DSCF0034.JPG   712.33K   29 downloads

#11 _rogered_

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Posted 17 April 2012 - 01:33 PM

The seal for the fan plastic cover to plenum is made of rubber not foam, hence it isn't in the kit.
The only thing I can see that could be missing is a third washer shaped seal.

The seal for the fan plastic cover to plenum is made of rubber not foam, hence it isn't in the kit.
The only thing I can see that could be missing is a third washer shaped seal.



Hi Dave

Where do you think the extra washer should go?
Possibly over the lower face hole, looking at this pic, however the heater box i measured off did not have one. and had never been off.the car.
Be interested to hear your thoughts

Cheers

Roger

#12 S pack

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Posted 17 April 2012 - 03:47 PM

Hi Dave

Where do you think the extra washer should go?
Possibly over the lower face hole, looking at this pic, however the heater box i measured off did not have one. and had never been off.the car.
Be interested to hear your thoughts

Cheers

Roger


Hi Roger

In your pics there is a hole in the base plate pretty much straight down from the flap pivot shaft hole. You can see what looks like a circle of corrosion pitting around the hole. There should be a mounting stud fitted to that hole and a seal fitted around it.

That said it is possible that some heaters were released without that extra stud. Who knows, GMH, like other manufacturers, like to or have to make changes to parts/components during production to reduce costs or improve reliability.

Those repro foam seals appear to be a lot thicker that the original seals and there isn't much stud protruding past the seal.
Does the foam compress well or is it fairly dense?

Cheers
Dave.

#13 _sunburst73-xu1_

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Posted 17 April 2012 - 04:25 PM

Hi Roger

In your pics there is a hole in the base plate pretty much straight down from the flap pivot shaft hole. You can see what looks like a circle of corrosion pitting around the hole. There should be a mounting stud fitted to that hole and a seal fitted around it.

That said it is possible that some heaters were released without that extra stud. Who knows, GMH, like other manufacturers, like to or have to make changes to parts/components during production to reduce costs or improve reliability.

Those repro foam seals appear to be a lot thicker that the original seals and there isn't much stud protruding past the seal.
Does the foam compress well or is it fairly dense?

Cheers
Dave.

I came across this when restoring a box the other week,I had a number of tops and bottom plates.The plate I used came off a LC top and was going in my LJ 4 door.The LC plate had this extra stud but there was no hole for it in the LJ.
Maybe a LC/LJ thing. :dontknow:

#14 _rogered_

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Posted 17 April 2012 - 04:46 PM

Hi Roger

In your pics there is a hole in the base plate pretty much straight down from the flap pivot shaft hole. You can see what looks like a circle of corrosion pitting around the hole. There should be a mounting stud fitted to that hole and a seal fitted around it.

That said it is possible that some heaters were released without that extra stud. Who knows, GMH, like other manufacturers, like to or have to make changes to parts/components during production to reduce costs or improve reliability.

Those repro foam seals appear to be a lot thicker that the original seals and there isn't much stud protruding past the seal.
Does the foam compress well or is it fairly dense?

Cheers
Dave.

Hi Roger

In your pics there is a hole in the base plate pretty much straight down from the flap pivot shaft hole. You can see what looks like a circle of corrosion pitting around the hole. There should be a mounting stud fitted to that hole and a seal fitted around it.

That said it is possible that some heaters were released without that extra stud. Who knows, GMH, like other manufacturers, like to or have to make changes to parts/components during production to reduce costs or improve reliability.

Those repro foam seals appear to be a lot thicker that the original seals and there isn't much stud protruding past the seal.
Does the foam compress well or is it fairly dense?

Cheers
Dave.


Chers dave

that it the origional thickness material and, whilst firm, compresses down to nothing.
I agree, thats the only place i can see it fitting, if indeed it had one.
I will look at a couple of cars this week,
my be a case of some had them, and some not.

Cheers
Roger

#15 S pack

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Posted 17 April 2012 - 05:46 PM

I came across this when restoring a box the other week,I had a number of tops and bottom plates.The plate I used came off a LC top and was going in my LJ 4 door.The LC plate had this extra stud but there was no hole for it in the LJ.
Maybe a LC/LJ thing. :dontknow:


A service diagram I have of the LC heater base and seals which is dated September 1971 shows three washer type seals and 3 mounting studs.
Also if you have a look at the link I posted above to Agent34's build thread you can see that his 1972 LJ heater base (I presume that is the original heater from your GTR Grant) has 3 studs and 3 seals.

Cheers
Dave.

#16 lx308

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Posted 17 April 2012 - 06:29 PM

Mine also had the stud in the same spot as agent34's heater base.

#17 _sunburst73-xu1_

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Posted 17 April 2012 - 07:14 PM

A service diagram I have of the LC heater base and seals which is dated September 1971 shows three washer type seals and 3 mounting studs.
Also if you have a look at the link I posted above to Agent34's build thread you can see that his 1972 LJ heater base (I presume that is the original heater from your GTR Grant) has 3 studs and 3 seals.

Cheers
Dave.

Maybe it might have been another factory F*#k up on the 4 door I have,because I dead set had to drill another hole for that stud.I got home tonight and looked at my XU and the 3 stud/nuts are there.

#18 S pack

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Posted 17 April 2012 - 07:44 PM

Maybe it might have been another factory F*#k up on the 4 door I have,because I dead set had to drill another hole for that stud.I got home tonight and looked at my XU and the 3 stud/nuts are there.


Interesting Dane, very interesting!!!

#19 _sunburst73-xu1_

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Posted 17 April 2012 - 08:05 PM

Interesting Dane, very interesting!!!

Yeah this 4 door is a pretty weird car it also has never had the drip trays behind the bonnet hinges either(no holes to be seen for the rivetts),hense why I had to replace the heater box bottom because of rust.
And with the Xu1 lower control arms and the reinforced Engine mounts also.Its a very original car so I think its been like it from new.
Also its a Brissy built car but other then the wiper motor being Preslite,the coil,starter and alternator are all Lucus.
cheers

Edited by sunburst73-xu1, 17 April 2012 - 08:08 PM.


#20 _BATHURST-32D_

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Posted 19 April 2012 - 07:44 AM

roger is that the heater for you ck bathurst car???

cheers gong

#21 _rogered_

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Posted 19 April 2012 - 09:31 AM

roger is that the heater for you ck bathurst car???

cheers gong

roger is that the heater for you ck bathurst car???

cheers gong


Yip

#22 _rogered_

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Posted 19 April 2012 - 09:38 AM

Progress has slowed in the last 18 months.
Im not "flush with cash" at the moment. :nopity:
Might blame the globel finacial crisis, however we are still moving forward

#23 _sunburst73-xu1_

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Posted 19 April 2012 - 07:26 PM

A service diagram I have of the LC heater base and seals which is dated September 1971 shows three washer type seals and 3 mounting studs.
Also if you have a look at the link I posted above to Agent34's build thread you can see that his 1972 LJ heater base (I presume that is the original heater from your GTR Grant) has 3 studs and 3 seals.

Cheers
Dave.

I seen a bottom off a 69 LC GTR last night and its very different to the ones pictured above.
cheers

#24 _BATHURST-32D_

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Posted 19 April 2012 - 07:49 PM

thats right dane.

cheers gong

#25 lx308

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Posted 31 May 2012 - 02:07 PM

Got my gaskets the other day, they look the goods. Pity I hadn't taken a closer look the pictures & waited for them before I fitted the fan & motor back together... Anyhow, made up the puller & it's all good.
My fan motor has a o ring fitted where it goes through the base. Does it have this o ring & the gasket? The parts book has an o ring listed, but piccie of where it goes.

O ring.

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