Radiator / Coolant Problems and Leak
Thread Starter
Aaron
Joined: Mar 2008
Posts: 33
Likes: 0
From: Anchorage
Radiator / Coolant Problems and Leak
Today I installed a new engine in my 1980 RX7. The engine that I installed was from a 1982 RX7, and looked to be in good condition. Unfortunately, I've run into a HUGE problem. It seems that there is a bad seal inside the engine, and coolant has mixed with the oil. I've been looking for a cheap way to fix this, and I found this. http://www.rotaryresurrection.com/1s..._seal_fix.html I don't have the time or money to buy a different engine or do a rebuild, so I'm tempted to try this fix for the time being until I can find a different engine for the car. Any feedback on this idea would be appreciated.
Aaron
Anchorage, AK
Aaron
Anchorage, AK
Last edited by akman360; Jun 22, 2008 at 04:34 AM.
Rotary Freak
Joined: Sep 2002
Posts: 2,815
Likes: 0
From: SF BayArea
Many of us have had a coolant leak and many have used that solution with good luck. I've done it myself a couple of times.
Usually the way the leak manifested itself was that the engine overheated and subsequently coolant would be lost through the engine and out the tailpipe. After the engine started the exhaust would emit clouds of white smoke. One would have to add about a cup of coolant to the radiator every day.
In your case it's hard to predict if the problem is the same. It sounds like all you know is that there is coolant in the oil. Perhaps there is a different cause: perhaps the block is cracked from getting frozen with insufficient antifreeze.
Can you actually run the engine? You'll be required to run the engine several times to apply the seal temporary fix.
Usually the way the leak manifested itself was that the engine overheated and subsequently coolant would be lost through the engine and out the tailpipe. After the engine started the exhaust would emit clouds of white smoke. One would have to add about a cup of coolant to the radiator every day.
In your case it's hard to predict if the problem is the same. It sounds like all you know is that there is coolant in the oil. Perhaps there is a different cause: perhaps the block is cracked from getting frozen with insufficient antifreeze.
Can you actually run the engine? You'll be required to run the engine several times to apply the seal temporary fix.
Thread Starter
Aaron
Joined: Mar 2008
Posts: 33
Likes: 0
From: Anchorage
Many of us have had a coolant leak and many have used that solution with good luck. I've done it myself a couple of times.
Usually the way the leak manifested itself was that the engine overheated and subsequently coolant would be lost through the engine and out the tailpipe. After the engine started the exhaust would emit clouds of white smoke. One would have to add about a cup of coolant to the radiator every day.
In your case it's hard to predict if the problem is the same. It sounds like all you know is that there is coolant in the oil. Perhaps there is a different cause: perhaps the block is cracked from getting frozen with insufficient antifreeze.
Can you actually run the engine? You'll be required to run the engine several times to apply the seal temporary fix.
Usually the way the leak manifested itself was that the engine overheated and subsequently coolant would be lost through the engine and out the tailpipe. After the engine started the exhaust would emit clouds of white smoke. One would have to add about a cup of coolant to the radiator every day.
In your case it's hard to predict if the problem is the same. It sounds like all you know is that there is coolant in the oil. Perhaps there is a different cause: perhaps the block is cracked from getting frozen with insufficient antifreeze.
Can you actually run the engine? You'll be required to run the engine several times to apply the seal temporary fix.
Lives on the Forum
Joined: Jun 2004
Posts: 11,359
Likes: 14
From: Grand Rapids Michigan
Here's what worked for me. Mine was very very bad, throwing up clouds so thick that traffic behind me had to pull over until it cleared. 
https://www.rx7club.com/1st-gen-archive-71/engine-coolant-seal-repair-maybe-750774/
https://www.rx7club.com/1st-gen-archive-71/engine-coolant-seal-repair-maybe-750774/
Full Member
Joined: Jun 2008
Posts: 71
Likes: 0
From: Clarksville, TN
Glad you found it and fixed yours.
Mine was more like $24 for the bottle though. And it was also for heater core fixes.
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