Dodge flathead 230 oil filter pipes...HELP

Hello All

Can anyone help me with this...

When I stripped my Dodge 230 engine I didn't take any photos of the oil pipe routing thinking that I'd remember, but being the wrong side of 40 remembering stuff just doesn't happen.
Can anyone who has a 23" Mopar flathead have a look at theirs and tell me which of the following is correct...

Pipe goes from the vertical hole in the block next to the dipstick in to the side of the filter and the bottom of the filter is connected to the side of the block through a horizontal hole.

Or, The pipe goes from the side of the block (any of the 4 in the main oil gallery) into the side of the filter and out of the bottom of the filter into the vertical hole next to the dipstick.

I don't fully understand the byp*** filtering system to sort out the logic myself.

Thanks, Joe

 

The lower fitting on the block goes to the bottom of the filter and the fitting coming out of the side of the filter can goes to the higher port on the block (the one inline with the oil galley cast into the side of the block).
Filtering the oil on a byp*** system was an after thought back in the day, priority was given to providing the bearings with full oil pressure, any excess oil was p***ed through the filter.
Heres a good site for flathead mopar info
http://www430.pair.com/p15d24/mopar_forum/

 

Here's a picture of an original, untouched '36 engine. The upper pipe on the side of the block comes from the main oil gallery and supplies the filter. The pipe on the bottom of the filter housing is the return line and it connects to the p***age above the relief valve. Oil returns to the pan through a p***age in the relief valve that opens when the engine runs and there is sufficient positive pressure to lube everything else. It is retained in the housing when the engine is not running, or pressure is low, as the return p***age is blocked. Pretty clever.

 

supposidly with a properly working system the rate throughthe filter is 30%. So it takes 3.3 X circulation for the all the oil to p*** through the filter.

Remember back in the day even these filters were optional, and dealer installed. Oil was basically just oil, and roads were in many prts of the country unpaved. And the air was filled with coal particulate from trains , factories, and home heating.

No wonder engine life was 50 K miles if you were lucky.

 

Cheers guys.
that's all a big help. Thanks for the explanations.

Joe

 

New to the forum but had the same question as hotrodderjoe. The picture was a big help but once you use those ports for the filter, where's the best place to pick up pressure for the guage? This is for a FH6 Spitfire in a Dodge WC. Thanks in advance!

 

Originally the gauge piggybacked on the upper filter port. There was a br*** fitting that screwed into the oil gallery, with 2 outlets. One for the filter, one for the gauge.

This was on the byp*** filter.

 

Thanks Rusty... that solves that mystery. One question, would the tee effect the true pressure reading if half the volume/pressue is off to the filter?

 

Look closely at the oil p***age cast into the side of the block. There should be thre accesports on near the front unused, one for the filter, and one for the gauge, near the bellhousing end. might be behid the starter.

 

Thanks for the help... I found the one just below where the pressure is guaged, the other must be behind the starter. Would it run in a line from the other two?

 

yes off the same casting bump.