Author Topic: 67 289 thermactor gaskets at heads  (Read 525 times)

Offline 67gta289

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67 289 thermactor gaskets at heads
« on: December 31, 2019, 06:21:12 PM »
Referencing the attached picture, I'm looking for what to do with items 37 (C7OE-9C436-A) and 39 (C7OE-9C435-A or C7DE-9C435-A).  The MPC lists C7OZ-9C435-A and C7OZ-9C435-B for these.

I'm not finding them available for purchase.  Any suggestions? Thanks
John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

Offline 67gta289

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Re: 67 289 thermactor gaskets at heads
« Reply #1 on: December 31, 2019, 06:26:13 PM »
I should mention that I did a fair amount of searching, as well as looking at pictures of unrestored cars.  Nothing really helpful thus far.
John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

Offline 67gtasanjose

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Re: 67 289 thermactor gaskets at heads
« Reply #2 on: December 31, 2019, 07:05:18 PM »
I should mention that I did a fair amount of searching, as well as looking at pictures of unrestored cars.  Nothing really helpful thus far.
These are made of copper.
I found the small ones in a Napa store brake caliper hose attaching banjo nut seal assortment.
If memory serves, the large ones I sourced some that would work by i.d. size, I could not match the o.d. size. Hydraulic hose banjo bolts, think tractors, Bobcats, farm implements.
I believe I ended up using my old ones over again.
Richard Urch

1967 (11/2/66, S.J.) GTA Luxury Coupe, 289-4V w/Thermactor Emissions, C-4, Int./Ext. Decor +many options

2005 (04/05) GT Premium Convertible, Windveil Blue, Parchment Top w/Med. Parchment interior,  Roush Body Appointments

Offline 67gta289

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Re: 67 289 thermactor gaskets at heads
« Reply #3 on: December 31, 2019, 07:45:09 PM »
That helps a lot, thanks Richard
John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

Online 7R02A

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Re: 67 289 thermactor gaskets at heads
« Reply #4 on: January 01, 2020, 01:04:26 AM »
I went thru this a couple of years ago.  Like Richard, I reused the 2 small washers and I only had 1 of the large ones.  I could not source one, so I made one.  Luckily, I measured and recorded the measurements of both washers. 
Small washer:  OD-.633”, ID- .330”, thickness- .030”
Large washer:  OD-.1.130”, ID- .860”, thickness- .030”

This is for the car listed in my signature.
Hope this helps a little,
John
John
1967 Fastback, A code, automatic transmission, Deluxe interior, AC, PS, P disc brakes, tilt, consoles, exterior group, fold down, DSO 71.
San Jose build, Actual build: Dec 17, 66.

Offline 67gtasanjose

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Re: 67 289 thermactor gaskets at heads
« Reply #5 on: January 01, 2020, 07:32:12 AM »
I went thru this a couple of years ago.  Like Richard, I reused the 2 small washers and I only had 1 of the large ones.  I could not source one, so I made one.  Luckily, I measured and recorded the measurements of both washers. 
Small washer:  OD-.633”, ID- .330”, thickness- .030”
Large washer:  OD-.1.130”, ID- .860”, thickness- .030”

This is for the car listed in my signature.
Hope this helps a little,
John
Most excellent!
I did not cite dimensions because I didn't record them.
Honestly, I seem to recall starting a thread before, maybe in the wanted section.
Richard Urch

1967 (11/2/66, S.J.) GTA Luxury Coupe, 289-4V w/Thermactor Emissions, C-4, Int./Ext. Decor +many options

2005 (04/05) GT Premium Convertible, Windveil Blue, Parchment Top w/Med. Parchment interior,  Roush Body Appointments

Offline 67gta289

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Re: 67 289 thermactor gaskets at heads
« Reply #6 on: January 01, 2020, 10:04:59 AM »
Agreed, thanks John.

Comparing your numbers with those from the MPC, they look reasonably close for the function served.

John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

Offline bgp429

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Re: 67 289 thermactor gaskets at heads
« Reply #7 on: January 01, 2020, 11:42:55 AM »
Have you tried Ace Hardware?

Offline 67gta289

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Re: 67 289 thermactor gaskets at heads
« Reply #8 on: January 01, 2020, 02:23:10 PM »
Not yet. The smaller one is fairly common.  The large one not do much.  I found something close online, but I need to measure the part to ensure it will fit.
John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660