Sherman / Grant Air cleaners ?

[Colin Alford]

Andrew,

I believe the air cleaners in your latest image (one round air inlet as opposed to an oblong inlet) are specifically for mid-to-late production Valentines. I can post some supporting images this evening.

Colin

[Colin Alford]

Andrew,

I just re-read your last post, and think I may have initially misunderstood it.

I believe that the tall air cleaners shown in your first post are commercial versions due to the rim/flange which stands approx an inch proud of the vertical sides of the main body of the air cleaner. Due to the spacing of the intake holes on the military triple air-intakes, I believe there is insufficient room for these styles of air cleaners to fit side-by-side as the rims/flanges will prevent a proper fit.

I have not yet determined if the rim/flange can be removed, or if the internals are suitable to provide parts for the military versions.

I will provide more images this evening.

Colin

[Andrew Rowe]

The slotted hole ones were pulled from a triple hole manifold on the blower, so they were sitting side by side with no problem, cheers Andrew.

[Colin Alford]

Originally Posted by Andrew Rowe

The slotted hole ones were pulled from a triple hole manifold on the blower, so they were sitting side by side with no problem, cheers Andrew.

Andrew,

Very interesting! I had not attempted to put this style on a triple air intake as the proud flange looked like it would cause a problem. Does this mean that the body is a smaller diameter? I have access to most, if not all, of the types under discussion and I intended to get to them this afternoon to take some comparison images, but my day did not go as planned (hopefully tomorrow).

Here are some images from 1947 and 1949 GM Diesel Industrial model parts books, and a 1957 Detroit Diesel parts book, showing various evolutions of air cleaners. I note that for both the AC and Donaldson types, the holes moved from the lower housing/shell in the wartime parts books to the upper element assembly in the post-war parts books (that I can access).

[Colin Alford]

Andrew,

Here are a couple of images regarding the early, and later types of Valentine air cleaners. (I fully acknowledge that you have extensive experience with Valentines).

[Andrew Rowe]

Thinking back , I may have pulled the slotted ones off a duel intake manifold
rather than a triple, so extra gap ? between them. So these look like they could be commercial of that era 1947 to 1949 , Thanks for the input.....nice Valentine
book that you have.......Cheers Andrew.

[Colin Alford]

Andrew,

I managed to get some images of the various air cleaners and intake manifolds.

These three images are to illustrate the difference in the spacing of the holes in the double vs triple air-intakes.

In all three images the centre hole of the triple is aligned with the left hole of the double ( I didn’t have a tape measure handy)