Preparing 58 for Judging in October - Couple questions

[Thomas H.]

Going through judging sheet and checking things. I have a couple questions: (Car is a March 58 car)

1. Under Engine Cooling System it lists water pump pulley and support washer - what is the support washer?

2. Lacquer warning sticker - I have heard three different things, on fan shroud, inside glove box door or non at all for this build date.

3. For the operations part, the gauges all work but the OP runs high - almost full scale at start. The engine is fresh - maybe 50 miles so far. Will this be considered a failure?

4. Does anyone make a "correct" oil filler decal? Orange with a dot, not a line........

Thanks,

Tom

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[Bob D.]

Re: Preparing 58 for Judging in October - Couple questions

Tom

I can't speak to the first couple of questions you have, but regarding the oil pressure on start up, I doubt it would be a fail. Since you are not doing a performance verification, there is no requirement that it be "perfect". It should be fine as long as it registers. Perhaps someone with more experience on '58s can chime in.

Bob

[Richard M.]

Re: Preparing 58 for Judging in October - Couple questions

Tom, The support washer may be the pulley reinforcement. Not positive.

Oil Pressure shouldn't be a OP's fail, but it seems like they put a high pressure pump in it. My '59 has one, but it didn't fail OPs.

Not sure about #2 or #4.

Rich

[Stephen C.]

Re: Preparing 58 for Judging in October - Couple questions

Tom as Bob replied the op should be fine for flight judging but not for a PV, you may have a high volume oil pump on your engine. Also if you are using synthetic oil the op reads higher. The support washer (reinforcement washer) fits between the water pump and the water pump pulley this gives the proper fan belt alignment (moves forward)

[Thomas H.]

Re: Preparing 58 for Judging in October - Couple questions

Tom, The support washer may be the pulley reinforcement. Not positive.

Oil Pressure shouldn't be a OP's fail, but it seems like they put a high pressure pump in it. My '59 has one, but it didn't fail OPs.

Not sure about #2 or #4.

Rich

Hi Rich,

I was thinking that the spacer / washer behind the water pump pulley was what was being referenced also.

I put the engine together and used the M55 pump - NOT the M55HV pump. I was expecting to see values in the 30 -40 psi range and dropping somewhat at idle. I should probably hook up an external gauge to verify what I'm seeing on the original gauge is correct.

Nice job on that C2 BTW!

Tom

[Thomas H.]

Re: Preparing 58 for Judging in October - Couple questions

Tom as Bob replied the op should be fine for flight judging but not for a PV, you may have a high volume oil pump on your engine. Also if you are using synthetic oil the op reads higher. The support washer (reinforcement washer) fits between the water pump and the water pump pulley this gives the proper fan belt alignment (moves forward)

Thanks Steve - confirmed the suspicion on the water pump washer.

Using std oil pump and Rotella oil.

Tom

[Bob R.]

Re: Preparing 58 for Judging in October - Couple questions

I think the standard oil pump now comes with a 60 psi spring in it and will show high pressure but it shouldn't be a problem for flight judging. The only fix is to change the spring in the pump. My car also ran at 60 psi with an m55 pump with a new spring it now runs at 35psi.

[Dan D.]

Re: Preparing 58 for Judging in October - Couple questions

Bob is right. Those pumps come with a high pressure spring. Ya gotta get the green spring. If I remember correctly Duke says even that spring has higher pressure than originals ones do.

If you still have the old pump the spring is probably okay even jf the pump is trashed. Otherwise you can get a green spring from Melling. I wish they would include a green spring with the pump and some instructions, but they don't.

Make sure you have the correct pick-up tube. There are two different ones, depending on what oil pan you have. Did you set it for 3/8 clearance to the bottom of the pan?

-Dan-

[Joe R.]

Re: Preparing 58 for Judging in October - Couple questions

Lacquer warning sticker in the glove box between the seats.

At least that's where my original sticker was found.

JR

[Thomas H.]

Re: Preparing 58 for Judging in October - Couple questions

Lacquer warning sticker in the glove box between the seats.

At least that's where my original sticker was found.

JR

Thanks Joe. What was the approx build date of your 58? Mine is SN 5330 mid March 58.

Tom

[Thomas H.]

Re: Preparing 58 for Judging in October - Couple questions

I think the standard oil pump now comes with a 60 psi spring in it and will show high pressure but it shouldn't be a problem for flight judging. The only fix is to change the spring in the pump. My car also ran at 60 psi with an m55 pump with a new spring it now runs at 35psi.

Here I thought by installing the std pump (not the HV pump) I was doing the "right thing"........... Oh well, not dropping the pan at this point.

Tom

[Thomas H.]

Re: Preparing 58 for Judging in October - Couple questions

Bob is right. Those pumps come with a high pressure spring. Ya gotta get the green spring. If I remember correctly Duke says even that spring has higher pressure than originals ones do.

If you still have the old pump the spring is probably okay even jf the pump is trashed. Otherwise you can get a green spring from Melling. I wish they would include a green spring with the pump and some instructions, but they don't.

Make sure you have the correct pick-up tube. There are two different ones, depending on what oil pan you have. Did you set it for 3/8 clearance to the bottom of the pan?

-Dan-

Correct pick up and spacing. I may have one of those green springs here somewhere, but at this point unless there is an OP or engine issue, I'm not changing anything.

Thanks for the help.

Tom

[Joe M.]

Re: Preparing 58 for Judging in October - Couple questions

Thomas, the JG states that 1958 models through #5000 had the warning label affixed to the radiator fan shroud. "Late '58 through 1960" the labels were installed inside seat separator. Since your VIN is after 5,000, I think you would be good with the label inside the seat separator.

My 283 was rebuilt 11 years ago and the oil pressure at driving speed has always been 60 psi. My mechanic told me that he did not install a high pressure pump. The earlier posts lead me to believe that I do have a low pressure pump with a high pressure spring. I have been running at 60 psi for 11 years and seem to have no detrimental effects. That doesn't make it right.