Help interpreting compression numbers
#1
Help interpreting compression numbers
I was having hard starts when the car was warm... 2005 RX8 , 130K miles.
Figured I'd replace the starter motor but the dealer really wanted to test compression. Initially, I said no because I wasn't going to rebuild it if it was bad. However, I reconsidered and these are the numbers. Rotor 1 (front) 670,720,590 (kPa) Rotor 2 (rear) 720,700,710. So the dealer says I need a rebuld for $10K and by the way your battery is bad too. Well I replaced the battery (another thread) and for 3 months, no problems. After a nice hot SoCal summer, its starting to be more difficult but will still start within 1-2 tries. Two questions 1. Is it worth installing the rebuilt starter motor I already bought?
2. How soon should I looking to rebuild given the compression results. Extra credit - When will BHR start rebuilding engines? - I threw that in for fun!
Figured I'd replace the starter motor but the dealer really wanted to test compression. Initially, I said no because I wasn't going to rebuild it if it was bad. However, I reconsidered and these are the numbers. Rotor 1 (front) 670,720,590 (kPa) Rotor 2 (rear) 720,700,710. So the dealer says I need a rebuld for $10K and by the way your battery is bad too. Well I replaced the battery (another thread) and for 3 months, no problems. After a nice hot SoCal summer, its starting to be more difficult but will still start within 1-2 tries. Two questions 1. Is it worth installing the rebuilt starter motor I already bought?
2. How soon should I looking to rebuild given the compression results. Extra credit - When will BHR start rebuilding engines? - I threw that in for fun!
#2
Thanks for your response. I was kinda hoping you would answer I have not had the fuel pump assembly replaced. Probably a good time to replace the pump as well?
For looking at a rebuild with this mileage, I assume there are other "should replace" while your at it jobs. I was thinking the clutch, BHR ignition, and now fuel pump assembly. After 10 years, this car is still my daily driver and I'm hoping to hold on until the RX 9 comes on board!
Also, what are your thoughts on mild street porting/polishing? Is this something to consider for a daily driver?
Thanks for your time and expertise in answering questions on the forum. Thinking it would be cool if my car would be one of your first rebuilds in your new facility. I'll email you late September to see if that's possible
For looking at a rebuild with this mileage, I assume there are other "should replace" while your at it jobs. I was thinking the clutch, BHR ignition, and now fuel pump assembly. After 10 years, this car is still my daily driver and I'm hoping to hold on until the RX 9 comes on board!
Also, what are your thoughts on mild street porting/polishing? Is this something to consider for a daily driver?
Thanks for your time and expertise in answering questions on the forum. Thinking it would be cool if my car would be one of your first rebuilds in your new facility. I'll email you late September to see if that's possible
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