Rotary Car Club - View Single Post - CPU water leak recall, horn, turn signals, warning system

rx4ur7 · 10-20-2009, 01:49 PM

I would think this is old news. I thought I saw a post that was relating to this issue.
RECALL #031/86 10/3/86
CPU Damage from Water Leak

Some early RX7's have had CPU damage caused by water leakage. Symptoms include:

erratic or no horn
erratic turn signal and emergency light operation
erratic or no 'beep' warning signals

Leakage occurs around a metal flange (upper left inner body under left fender)
Fix from Mazda:more sealant applied to area during production and protective coating added to inside of CPU.
Field fix; sealant applied to area, replace CPU if damaged beyond cleaning.

I have had to repair a few of these, I would think they have all been taken care of by now. Need to check CPU and fuse block for water damage also.

10-20-2009, 01:49 PM	#1
rx4ur7 Rotary since 1972 Join Date: Nov 2008 Location: Tucson Posts: 231 Rep Power: 17	CPU water leak recall, horn, turn signals, warning system I would think this is old news. I thought I saw a post that was relating to this issue. RECALL #031/86 10/3/86 CPU Damage from Water Leak Some early RX7's have had CPU damage caused by water leakage. Symptoms include: erratic or no horn erratic turn signal and emergency light operation erratic or no 'beep' warning signals Leakage occurs around a metal flange (upper left inner body under left fender) Fix from Mazda:more sealant applied to area during production and protective coating added to inside of CPU. Field fix; sealant applied to area, replace CPU if damaged beyond cleaning. I have had to repair a few of these, I would think they have all been taken care of by now. Need to check CPU and fuse block for water damage also. Last edited by rx4ur7; 10-21-2009 at 01:04 PM.