Hi folks,
I appreciate any help from the Toyota repair guru's out there ... I'm far from a guru so please excuse any wrong words/descriptions. Thanks for your help!!.
I'm working on a 1986 Corolla Sedan, Auto 3spd, power steering, 4ac engine with 205,000 miles, unknown history, and a severe oil leak.
I traced the leak down to the the lower timining chain cover and area around the harmonic balancer. When I removed the balancer, I was shocked to find that it was litterally scraping and creating a gouge in the timing chain cover (it's plastic, and this caused an entire side of it to break off) and also found the balancer rubbing along the oil pan edge (amazing it didn't catch fire or something).
I have no idea how this could happen as I'm not familiar with Toyota engines. Were spacers left off at some time in the past, or has this well used engine simply worn internally so severely that it's beyond tolerance/clearance? The funny thing is, other then the oil leak, the car runs really well.
So, I'd appreciate some advice. Should I replace the lower timing chain cover and let the balancer rub in again? Are there shims I can use somehow? I'm worried that if I pull the timing chain cover in it's damaged condition, it wont be replaceable unless i use a new one, so i want to be sure I'm doing the right thing.....help!!
Zac