Correct Valve Cover Nut's for F135/145/155? (1 Viewer)

[cruiseroutfit]

Toyota lists the nuts as 90176-08004 for the (editted) 69 through 75 F variant with the stamped steel cover. For years we sold an OEM nut (90176-08004) but that was recently discontinued and unfortunately we sold out of them. As I've search for a quality replacement I've found some discrepancy in the nut itself, some show it as a capped nut, some show it as a standard nut.

(seems to show a standard nut, I realize the EPC isn't always exact in diagrams)

Closed cap nut, similar to what I found available

Double nut with the cap nut on top?

Different yet?

This is what I've found available

I need to do two things, swing over the LCHM and pop some hoods one of these nights and also fire up my microfiche and see how far back they showed the 08004. But it's V-Day eve and I'm supposed to be getting cleaned up to take Mrs CruiserOutfit out to dinner

OR, perhaps someone here knows the answer? What nuts were used and when?

 

[OGBeno]

It would be easy to tell.

Just look for the outlier. Go through all of the schematics and find one that does not begin with 90176-XXXXX.

90176-XXXXX will always be a cap nut even if a regular hexagonal nut is shown in the catalog.

 

[red66toy]

Both F135 engines I have came with standard non-capped nuts on the valve covers.
Interested in finding the answer to this question

 

[cruiseroutfit]

(EDITTED) ~69 through 75 show the same part number in the EPC and paper catalog, 90176-08004 yet there are many examples of what one would assume are original applications. I'll have to dive into the fiche tomorrow.

 

[cruiseroutfit]

Both F135 engines I have came with standard non-capped nuts on the valve covers.
Interested in finding the answer to this question

You feel pretty comfortable they are original? My 65' 40 and 66' 45 also have a standard black nut.

 

[red66toy]

You feel pretty comfortable they are original? My 65' 40 and 66' 45 also have a standard black nut.

Well that I cannot say for sure. One engine is from 1964, the other 1966. Only have a sample size of 2, but they were both the same.
1966 engine

1964 engine:

 

[OGBeno]

My 1967 book shows: 94110-40800 non-cap nut (M8 x1.25)

I would assume that 90176-08004 was introduced somewhere between 1967 and 3/1969?

Other possibilities of cap nuts part numbers: 94171-xxxxx or 94176-xxxxx

I would try the following part numbers:

90176-08030
90176-08051

 

[red66toy]

Post #34 My FJ45 LPB Huckleberry Hauler
So maybe with the f135 it was non-capped and the later F engines had the capped nuts?

 

[cruiseroutfit]

Alright, Mrs hasn't yelled at me yet.

1961, part G

1961 w/ 94110-40800

1967 w/ 94110-40800

1961,3,4,5,6,7 Microfiche shows 94110-40800
I don't own pre 1961 catalog, anybody able to check?
I don't own 1962 fiche but was can 100% assume it was the 94110-40800.
I don't own 1968 fiche
I do own a 1969 paper catalog, it shows the 90176-08004 and seems to indicate that it was used earlier but I think I interpreted that wrong.
So, based on that I'm assuming the 94110-40800 was used until 67 and in 68 it went to the 90176-08004

Edit: SOR shows the 94110-40800 used from 1958-1967 and the 90176-08004 used from 1968-1974

Now, the 94110-40800 has superceded to the 90170-A0001, I happed to have those in the "drawer of un-assigned hardware" and that totally jives with what I see on my 65/66 4x's with the exception of color. But, for all I know my valve covers were rattle canned black over the years along with the nuts.

90170-A0001

Edit: @beno beat me too it, and I added some pics

 

[middlecalf]

Well my ‘64 F motor that’s in my ‘63 45 has capped nuts.

Wait a minute, these are aftermarket (Chrome Crown Nut (pk/6) - Crankcase). Never mind

 

[cruiseroutfit]

Well my ‘64 F motor that’s in my ‘63 45 has capped nuts.
View attachment 1904984

Wait a minute, these are aftermarket (Chrome Crown Nut (pk/6) - Crankcase). Never mind

Tidy garage!

 

[Martyt]

Well that I cannot say for sure. One engine is from 1964, the other 1966. Only have a sample size of 2, but they were both the same.
1966 engine

1964 engine:

Same for 5/69

 

[ToyotaMatt]

Alright, Mrs hasn't yelled at me yet.

View attachment 1904935
1961, part G

View attachment 1904936
1961 w/ 94110-40800

View attachment 1904930
1967 w/ 94110-40800

1961,3,4,5,6,7 Microfiche shows 94110-40800
I don't own pre 1961 catalog, anybody able to check?
I don't own 1962 fiche but was can 100% assume it was the 94110-40800.
I don't own 1968 fiche
I do own a 1969 paper catalog, it shows the 90176-08004 and seems to indicate that it was used earlier but I think I interpreted that wrong.
So, based on that I'm assuming the 94110-40800 was used until 67 and in 68 it went to the 90176-08004

Edit: SOR shows the 94110-40800 used from 1958-1967 and the 90176-08004 used from 1968-1974

Now, the 94110-40800 has superceded to the 90170-A0001, I happed to have those in the "drawer of un-assigned hardware" and that totally jives with what I see on my 65/66 4x's with the exception of color. But, for all I know my valve covers were rattle canned black over the years along with the nuts.

View attachment 1904932
90170-A0001

Edit: @beno beat me too it, and I added some pics

I found these a few Years ago being stocked normally @ my local Home Depot

Yea , Yea , I know , made in china NON-OEM part , But there a Good grade Stainless steel Plug and Play parts

upgrade @ like $2 per 2pc bag i never looked back , and NO rust till this day ............

 

[Splangy]

Both F135 engines I have came with standard non-capped nuts on the valve covers.
Interested in finding the answer to this question

All four of my F120-F135 engines are this way as well

 

[cruiseroutfit]

FWIW

VCC40800 (1958-67) & VCC08004 (1968-1/1975) updated in our system and available.

 

[MoCoNative]

My 4/73 F155 had the capped nuts. However, they had been tightened down so many times to try and cure the leaking cork that a couple had actually started to crack the cap part off. I would be leery of a short capped nut, unless used in a double nut settup, probably not enough thread to get the gasket tight. The fix was an early 2F aluminum cover and its matching nuts sold to me by Merl in Salida in 1997.