Re: [HSS] Re: 29 Hudson Oil Circuit

Unknown

NO, there is no possibility of the pump just delivering oil to the gauge, as

the outlet for the engine is internal, delivering to the housing via an

internal hole. The problems we had with Lew's car were due to the fact

that it had an early pump fitted, with the deflector plate for the later

pump still in place. The early pumps had the delivery port flush with the

mounting surface of the pump, and there was a tendency for the oil to splash

up and come out around the base of the distributor. Later on, I'm not sure

of the exact change-over date, the delivery hole was recessed back into the

pump housing, and there was a deflector plate across the mounting surface

which meant the oil was deflected downwards into the housing. The pump

consists of two ball valves, one top and one bottom, the main piston which

has a tapered spring to return it, and a pressure valve plunger with a

spring on top. This develops pressure against the spring which is

reflected on the dash gauge, and then lifts so the oil can be delivered to

the engine. If, as happened with Lew's car, the outlet hole is blocked or

too strong a pressure spring is used, the dash gauge self -destructs. I can

blow up the picture of the pump and email it it to you if you want.

Geoff.

----- Original Message -----

From: "James Coats" <jamcoats@uab.edu>

To: <HudsonSuperSix16-29@yahoogroups.com>

Sent: Friday, March 17, 2006 5:41 PM

Subject: [HSS] Re: 29 Hudson Oil Circuit





> Geoff,

>

> After reading your response to the gentleman's question something hit

> me like a poorly mounted headliner. I emailed you some time ago about

> problems with repeated rod bearing failures. I was just thinking that

> somewhere in the past I have read that if the oil pump is

> misassembled, it will only deliver oil to the pressure guage, and

> nowhere else. Am I dreaming this? If I'm not, I think I may have

> located the problem, or at least part of it (the rod pour job was

> lousy anyway.) I have never had the pump off until now to disassemble

> the engine, and I want to make sure I get it back together correctly

> if you could offer advice or maybe where to find an illustration.

>

> Best Regards,

> James Coats

> --- In HudsonSuperSix16-29@yahoogroups.com, "Geoff Clark"

> <geoffclark@...> wrote:

>>

>> It sounds like somebody has fiddled with the basic set-up. There

> are only

>> two pipes - one below the pump coming from the crankcase, and one

> above,

>> going to the oil pressure gauge. The oil is drawn from the sump,

> through the

>> pump and delivered internally to the pedestal, from whence it goes

> down

>> through the timing case, into the trough assembly, circulates

> through each

>> trough back to No. 6 where the remainder is flung against the side

> of the

>> crankcase and dribbles down the cut-out in the side of the rear

> trough and

>> hance back to the sump. Mains are fed by gutters in the crankcase

> directing

>> the oil to holes in the bearings. there should be nothing going to

> the top

>> tappet cover, these are oiled by the fillable resevoirs above each

> rocker.

>> The only filter is a gauze around the intake pipe. If you want I can

> take a

>> pic of my engine and email it to you.

>> Geoff.

>> ----- Original Message -----

>> From: "jjpippers" <HARPER@...>

>> To: <HudsonSuperSix16-29@yahoogroups.com>

>> Sent: Friday, March 17, 2006 7:59 AM

>> Subject: [HSS] 29 Hudson Oil Circuit

>>

>>

>> >I am trying to figure out how my 29 Hudson lubrication works. I got

>> > me engine in pieces, and I'm confused about the copper lubrication

>> > lines.

>> >

>> > It looks like the oil is drawn from a (5/16"?) suction line that

>> > goes into the block and through a large tube in the oil collector

>> > pan. There is no filter on this line, it simply sucks from the

>> > bottom (beside the float switch).

>> >

>> > The pump pressure line (1/4"?) runs down the side of the head and

>> > then must tee off into the dash pressure gauge and also to somewhere

>> > on the head to lubricate the top end. (Not sure quite how this part

>> > works).

>> >

>> > Oil then flows down through the head and into the lower collector

>> > where the dippers fling it up. When the lower collector is full oil

>> > then runs into the oil pan through the screen filter.

>> >

>> > There also appears to be oil drippers in the top of the valve cover

>> > that I think would be manually filled to drop oil into the push-rod

>> > pivots.

>> >

>> > 1. Is this basically right?

>> >

>> > 2. Is there a drawing of all this (it is not in the manual that I

>> > have)?

>> >

>> > 3. Anyone have a picture of the oil pressure lines on the top end of

>> > the engine?

>> >

>> > jj

>> >

>> >

>> >

>> >

>> >

>> >

>> >

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>> >

>> >

>> >

>> >

>>

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