marco02_

Yes i do remember the water pump having the bypass you speak about but i will reconnect the heater just to make sure everything is ok. I still don't see how a bypass would help my problem because it doesn't prevent the coolant inside of the engine from expanding due to heating up.

Is that a l79 327? If so those engines are sweet. It also looks like it was in a tri five chevy previously because of the front motor mounts.

I will connect my heater hoses back on my car but my intake manifold doesn't have a provision for a bypass fitting. So ill just have to connect the heater hoses for now and hopefully it fixes my problem.

Hopefully it isn't anything too bad but i need to reinstall the bypass for the cooling system. But thanks for your help i will try checking tempuratures.

I tried this but didn't let it run for too long and even though the coolant level was low pressurized steam still wants to come out of the radiator. Ill try to get some air out of the cooling system and maybe pulling the thermostat. Thanks

One think i did to the heater hoses is i plugged them at the water pump completely. Dont know if that could be the cause of the problem since could let it build too much pressure inside the engine before the thermostat opens.

Ok ill try this and see how it ends up working. It might be a while until i get a chance. Thanks

No, actually no oil gets in the coolant. This only occurs when the thermostat opens up due to the heated up coolant that expands.

also every time it does this is spews about a gallon of coolant out of the overflow and afterwards just spews steam. Ive never owned a car with a open cooling system so the system seems strange but maybe some of you could help me on getting it working correctly because something seems wrong to me.

The radiator i am running right now has no way of building pressure at all. It has a vent to atmosphere at all times and the radiator fill cap. I will attach a photo i found from Don Coatney on the website.

Thanks for the quick response. So on a open system it is normal for the coolant to spew out of the radiator when the engine heats up? Also how was the original cooling setup. Did it have a overflow tank from the radiator?

Also since a newer engine was swapped into the car does that have an effect on the radiator and would i need to switch to a pressurized system?

So i just got my 1948 d24 running after 40 years. The car has a 283 chevy and powerglide that was swapped in it .I got the original non pressure radiator rebuilt and a new water pump. I topped off the coolant and started it up and let it run for about 7 minutes when the thermostat opened and started spewing coolant from the overflow on the radiator. Is this a normal thing for these cars and if so how is the overflow routed originally so it doesn't spew over my engine again?

Hi i am looking into converting my D24 from an automatic back to a manual and ive sourced most parts but some pictures and diagrams of the assembly would help as well. Thanks

Thanks i was wondering because i have a 1948 dodge d24 but some of the trim was stolen off of it like the fender moldings, rocker panel moldings, mirrors, and the splash guard that covers the space between the bumper and grille. I have a junkyard near me that has a 1948 plymouth p15 and they look fairly similar. Would some of the interior parts interchange as well like the gas pedal, arm rests, rear trunk latch mechanism, sun visors maybe even the window glass?