Sherman / Grant Air cleaners ?

[Andrew Rowe]

Hi Team, just wondering if these air cleaners are Sherman / Grant, etc, came off a Detroit 671 of the era, there are two different styles , these are available if anyone needs them ?, Cheers Andrew.

[Colin Alford]

Andrew,

GM Diesel used a few different styles of oil-bath air cleaners, but those used for commercial engines with single or dual air-intakes generally have a protruding flange which interferes with their fit on the military triple air-intakes.

Attached are some images from a couple of GM 6046 manuals with the early (small) and later AC, and Donaldson types.

The last image is a GM 6046 engine which I believe is displayed in a French museum ( images was copied from the internet a couple of years ago, proper credit unknown). It shows the interference issue with a mix of military and commercial air cleaners on a triple air-intake.

[Andrew Rowe]

Thanks Colin, so going by what you have produced , I probably have a couple of the air cleaners with the slotted holes for the M4A2 Sherman. On the Detroit engine , model 6004, that I have for the MK5 Valentine , this uses the ones in this current picture , cheers Andrew

[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.