Oil Pump Applications

[VFFFrank]

My "research"(using the Mopar Passenger Car Parts List, #D-14928) regarding the applications for the 1314 609 Oil Pump, spans the years from 1934 to 1954 (the limit of this particular book), non Hy-Drive equipped cars, however, it appears that '41 or '42 was the last year of the gear-type pump and the gerotor (trochiod Pump) was employed after that.

 

Looking at replacement pumps, the span is from 1934 to 1959, all being the Gerotor version. This would imply that the two are interchangeable. Would I be correct that a '46 and later pump can directly replace the pre-war gear-type? That's my take on it but I thought I should ask the experts.

Frank

[Don Coatney]

I cannot answer your question. But if you have not yet done so do a forum search for "full flow oil filter". There is much information there.  As I mentioned to you others here have done the full flow conversion. 

[dpollo]

Yes,  the newer pump will fit the earlier engines, in fact it was a recommended upgrade in the Chrysler

manuals with a footnote that higher oil pressure would likely be noticed .

[VFFFrank]

Thank you dpollo,

I'm aware that certain High-end Chryslers, namely the New Yorkers, used a full flow filter from '46 to 50 with a filter known as a "sealed can" type. It may have been optional for a few upper end models as well. I didn't think that it was adaptable to the engines in other models not so equipped from the factory. I tried the search that Don suggested without any results. However, I'm a techno dork, so it could just be me. If you could steer me to any conversations about that conversion, I'd be grateful.

Thanks,

Frank

[Don Coatney]

Any 25" Desoto or Crashler engine that has the diamond shaped raised boss to the right of the distributor as pictured below has capabilities to easily convert to full flow. using the canister also pictured below.

 

 

[Don Coatney]

This link might or might not work for you

 

http://p15-d24.com/index.php?app=core&module=search&section=search&do=search&fromsearch=1

 

The link does not appear to work so try to type in "full flow oil filter" on the link

[dpollo]

The block like Don Coatney pictured above was used from 49 to 54 and had a full flow filter, also pictured,  which had a replaceable element.  Chrysler engines from  46 to 48 also had full flow filters but the fittings to the block were threaded and piped. (3/8  I think)

 Other engines used Bypass type filters and some of these were the sealed can type but many had replaceable elements. These engines can be run without a filter at all.

 

Despite the desirability of a full flow filter, frequent oil changes will ensure long life and is probably cheaper than converting an engine

which is usually done by drilling the block above the oil pump  and piping the oil through a filter before delivering it to the oil gallery via another hole drilled in a boss just behind the generator. (25 inch engines... you can just see that boss behind the alternator in the picture but it would not be used in this block since it is already full flow.)

Full flow conversions can be done and I am sure there are people who can direct you.