My 409

[63409]

When it idles for more than 5 to 10 minutes it starts to get hot, my next step will be to change the radiator.

 

[W Head]

For a alum. Radiator see these guys Auto City Glass 763-444-5880 autocity@att.net
Purchased one for my 59 El Camino-348 (which I sold) and one for my 59 Impala 409-direct bolt in and great price-check it out. It will cool it down!

W Head

59 Impala 409-2,4s

 

[63409]

Changed the clutch fan and flushed out the whole system and it still got hot.Thanks for the reply I'll look into it.

 

[63 dream'n]

Have you checked timing,seems last couple heat problems have been directly related to timing issues......and if I remember correctly there was a video where you were experiencing detonation??

 

[63409]

Yes I remember you giving me that reply last year. I just started running the car this week that's another thing that I have to check.Thanks.

 

[63 dream'n]

Actually I read that response and remembered it because I liked your car....I had not commented on it previously.just stating that timing seems to be a common issue....good luck

 

[63409]

I'll try the timing this week if I get a chance I'll post another video so you guys can hear it.

 

[boxerdog]

Pulley sizes??

 

[64ss409]

It looks like you are only using one belt? Although I don't think that has an effect on heating while idling.

 

[yellow wagon]

Bump your initial timing up a degree or 2, big aluminum radiator and richen the idle mix screws an 1/8th turn. This modern fuel is complete garbage. You'll get it sorted out!

 

[63409]

Pulley sizes should be stock not under sized but I should check that also.Timing is probably why it's overheating I hope.

 

[boxerdog]

Ideally, you have around a 7" crank pulley and a water pump pulley 6" or smaller, especially in hot weather. JMO.

 

[63409]

Ok thanks I'll check this out today

 

[63409]

I checked the size of the pulleys, the crank pulley looks to be 7 inch in diameter, and the water pump pulley is I think because it's hard to measure 6 inches where the belt sits or maybe 7 inches OD if that makes sense.

 

[63409]

Are these safe to use on a ful tank of gas

 

[63409]

Is this safe one bottle of zinc additive with every oil change of regular 10W-30 oil.

 

[yellow wagon]

Run the Brad Penn oil. No additives needed

 

[63409]

I was using Amsoil Z-Rod 10w-30 synthetic oil , personally don't like it. Even though it says the viscosity is 10W-30 I still find it to thin. I feel the regular oil makes the engine run much smoother. That's just my opinion.

 

[63409]

It's also very expensive something like $18 a quart if I can remember correctly.

 

[boxerdog]

I'd look for a smaller water pump pulley, it is also used on some hi-po SBC engines.