Rotary Car Club - View Single Post - Radiator mod for v-mounts

speedjunkie · 02-23-2014, 01:18 AM

I got a replacement VM radiator from RX7store since my original one was seeping coolant. I finally got it, installed it, started pouring in coolant and it sounded like I was pouring it right on the floor, because I might as well have been. When they drilled the hole on top for the coolant inlet, they drilled a hole about 1/4" right into the core. I talked to Jason about it and asked if they pressure tested their radiators and he said they used to do them all but now they do one out of every ten or so. I tried to get it repaired because I was trying to make it to SevenStock, and my buddy that has a shop and was trying to fix it said the guy that originally did the modification HAD to know he drilled that hole because it was right below where you weld the elbow on. My buddy tried to fix it but it never was quite right, still leaked a little. It was then that I realized how easy it would be to make your own VM radiator, but Jason still owed me a radiator so he sent me a new one and this one was good, but I made sure to pressure test it myself to verify before I installed it. If I ever have to replace this one, I'll just get a regular one from Koyo and modify it myself or have it done locally.

02-23-2014, 01:18 AM	#8
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	I got a replacement VM radiator from RX7store since my original one was seeping coolant. I finally got it, installed it, started pouring in coolant and it sounded like I was pouring it right on the floor, because I might as well have been. When they drilled the hole on top for the coolant inlet, they drilled a hole about 1/4" right into the core. I talked to Jason about it and asked if they pressure tested their radiators and he said they used to do them all but now they do one out of every ten or so. I tried to get it repaired because I was trying to make it to SevenStock, and my buddy that has a shop and was trying to fix it said the guy that originally did the modification HAD to know he drilled that hole because it was right below where you weld the elbow on. My buddy tried to fix it but it never was quite right, still leaked a little. It was then that I realized how easy it would be to make your own VM radiator, but Jason still owed me a radiator so he sent me a new one and this one was good, but I made sure to pressure test it myself to verify before I installed it. If I ever have to replace this one, I'll just get a regular one from Koyo and modify it myself or have it done locally.