Author Topic: Purpose of special washer  (Read 2118 times)

Tinkerr

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Purpose of special washer
« on: June 01, 2019, 01:01:26 AM »
I'm installing the heater assembly and pg. 52 of the 68 assembly manual shows a #7 spl washer. Any ideas on the purpose? When you order the repo nut and screw kit it doesn't include said washer. It looks like it goes between the blower cover and the firewall like a shim. Thanks

Spooky

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Re: Purpose of special washer
« Reply #1 on: June 01, 2019, 02:35:17 AM »
https://www.amkproducts.com/search-result/?ser=3868762

looks like it is a seal in the shape of a washer

67CruiseMaster

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Re: Purpose of special washer
« Reply #2 on: June 01, 2019, 03:35:01 AM »
Spl is split washer. Possibly of lock washer
67 SS/RS with original Cruise Control
67 Tuxedo Black Convertible.

Tinkerr

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Re: Purpose of special washer
« Reply #3 on: June 01, 2019, 05:28:52 PM »
Ricks Camaro has a heater box to firewall fastener kit that has 5 nuts and 5 of those special washers. They weren't included in the kit when I put this thing together 10 years ago. I'm not sure where 5 of them go. In the assembly manual picture it appears 1 goes between the firewall and the heater box. What are the other 4 for? Thanks Paul

jacmac

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Re: Purpose of special washer
« Reply #4 on: June 01, 2019, 11:14:08 PM »
Reading the AIM I see "P Washer"  "L Washer" "SPL Washer". I always thought "L" was a basic lock washer.
UPC-12 A5 note 8- L Washer is an external star washer for grounding purposes.
69 Z10,69 ss396Chevelle, 71 Corvette

Tinkerr

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Re: Purpose of special washer
« Reply #5 on: June 02, 2019, 12:04:41 AM »
I looked at a restored 67 Camaro today, when the owner reassembled the heater he put the washers(kind of a felt texture but firmer) between the firewall and the blower motor cover on each stud when it came through the firewall. I have never seen those washer used on any other Camaro or GM product for that matter. Has anybody else seen these washers on any original cars. Thanks Paul

jvb6648

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Re: Purpose of special washer
« Reply #6 on: June 02, 2019, 12:16:01 AM »
I bought this kit. They're a "special washer", felt like material that goes on each stud as a seal or gasket.
https://www.classicparts.com/1967-74-Heater-Box-Firewall-Mounting-Kit/productinfo/HA-0132/
Jim
68 Z/28

Tinkerr

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Re: Purpose of special washer
« Reply #7 on: June 02, 2019, 12:47:14 AM »
That is a similar kit to the one Ricks is selling. I've never seen those washer used on any GM heater covers. I guess I'll order the kit. I'd like to see a original car to verify. The Camaro Nationals are in a couple weeks about 10 miles up road, I may wait until then to get a look at original car. Thanks Paul

jvb6648

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Re: Purpose of special washer
« Reply #8 on: June 03, 2019, 03:27:55 AM »
This is how mine turned out.
Jim
68 Z/28

 

anything