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question: Short block replaced

Old 07-21-2011, 10:47 PM
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question: Short block replaced

Hey guys, sup?

I looked at a 2005 RX8, the carfax showed a replacement of the short block(at 2011).

Dealer told me it's a recall by Mazda.

I am not really sure what is the short block. Should I take this replacement as a positive one or negative?

Lots of thanks
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Old 07-21-2011, 10:51 PM
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I believe that's showing the engine was replaced under the extended 8 year/100k mile warranty.
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Old 07-21-2011, 10:53 PM
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BTW, I looked at their photoes, and noticed there are rusts on tyre inner cycle (showed below). carfax is totally clean, but could this be a clue of flooding history?

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Old 07-21-2011, 11:11 PM
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^ no, that was a known issue and there was a TSB about it. Some dealers repainted them, some did nothing. You have a 4 port engine so if it was replaced that is a good thing, just make sure you drive it often and get it hot.
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Old 07-21-2011, 11:36 PM
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Originally Posted by 9krpmrx8 View Post
^ no, that was a known issue and there was a TSB about it. Some dealers repainted them, some did nothing. You have a 4 port engine so if it was replaced that is a good thing, just make sure you drive it often and get it hot.
good to know, thanks very much.

When you say "drive it often", how often do you recommend? I am looking for an '08 mostly for a secondary vehicle or "party" vehicle, probably wont drive everyday(little concerned about the gas consumption).

BTW I go to my GF's now and then(who lives very close, 10 min walking distance), there are many stop signs on the route, so I guess it could be 5 min driving. is this too short to warm up the engine?
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Old 07-21-2011, 11:40 PM
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Originally Posted by szjalo View Post
Hey guys, sup?

I looked at a 2005 RX8, the carfax showed a replacement of the short block(at 2011).

Dealer told me it's a recall by Mazda.

I am not really sure what is the short block. Should I take this replacement as a positive one or negative?

Lots of thanks

Yes, the engine was replaced this year.
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Old 07-22-2011, 10:45 AM
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Originally Posted by szjalo View Post
...BTW I go to my GF's now and then(who lives very close, 10 min walking distance), there are many stop signs on the route, so I guess it could be 5 min driving. is this too short to warm up the engine?
As long as the car is warm enough for the temperature gauge to reach normal (two tics left of center) you'll be OK. If most of the drive is stop signs and idling, rather than driving, you might do the 10 second rev thing described in the quick start manual.

You don't need to drive it every day. Lots of people have 8s as weekend toys. Just drive it as often as you would any other car...you don't want anything to regularly sit for a month and have to jump start it every time.

BTW - "short block" is the usual term they use when Mazda replaces an engine under the powertrain or extended core warranty. They transfer all the external parts from the old engine, so even though the rotary has no heads it's kind of analogous to short block for a conventional engine.

Ken
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Old 07-22-2011, 11:09 AM
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Driving for 5 minutes will not get your oil up to temp. Your coolant may get up to temp but not the oil, so make sure you change it often because even when you do change it you are still leaving several quarts of used oil in the systems so that new oil is instantly diluted by old oil. Oil that does not get up to temp does not have a chance to burn off contaminants.
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Old 07-22-2011, 11:27 AM
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Originally Posted by ken-x8 View Post
BTW - "short block" is the usual term they use when Mazda replaces an engine under the powertrain or extended core warranty. They transfer all the external parts from the old engine, so even though the rotary has no heads it's kind of analogous to short block for a conventional engine.

Ken

I didn't know this. Thanks. I was wondering what short block meant in the context of the Wankel. I thought they'd just say motor or engine.
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Old 07-07-2017, 01:31 PM
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My car also has a short block replaced on carfax at 58,000 miles I called the dealer it was under powertraim or extended core warrantee....my question is......does this mean it was a new block or is it a Mazda remanufacture?
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Old 07-07-2017, 01:36 PM
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Re-manufactured.
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Old 07-07-2017, 02:09 PM
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The only way to get a new engine would be to invent a time machine and go back in time to steal one from an un-sold '8 (or just grab one coming off the assembly line in Japan).
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Old 07-07-2017, 06:04 PM
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It will have a blue and sliver tag on the top front cover if it is a reman engine. You may be able to see it if you look between the alternator and air intake hose. Should have a date on the tag too.

RDHjapan has a new one listed on their site if you have 6K laying around..

https://www.rhdjapan.com/mazda-oem-1...k-se3p-mt.html
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Old 07-08-2017, 02:37 AM
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Originally Posted by ken-x8 View Post
As long as the car is warm enough for the temperature gauge to reach normal (two tics left of center) you'll be OK. If most of the drive is stop signs and idling, rather than driving, you might do the 10 second rev thing described in the quick start manual.

You don't need to drive it every day. Lots of people have 8s as weekend toys. Just drive it as often as you would any other car...you don't want anything to regularly sit for a month and have to jump start it every time.

BTW - "short block" is the usual term they use when Mazda replaces an engine under the powertrain or extended core warranty. They transfer all the external parts from the old engine, so even though the rotary has no heads it's kind of analogous to short block for a conventional engine.

Ken
I got even smarter 2 years ago and added a semi-permanent Battery Tender setup for a 1 crank start every time... The only way an Optima Battery lasts a couple years.
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Old 07-08-2017, 04:17 PM
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I couldn't find the yak I even took off the air box hose, either way it runs like a top with 8.1 8.0 compression across the board......a reman from 2015 has to be better quality than the older ones right?
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Old 07-08-2017, 09:32 PM
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Originally Posted by Rxmark View Post
I couldn't find the yak I even took off the air box hose, either way it runs like a top with 8.1 8.0 compression across the board......a reman from 2015 has to be better quality than the older ones right?
It really depends on who built it, the remans are sort of a crap shoot. From what I have read some of them come with 100% new internals while other get just a gasket & seal kit. 99% of the time they do come with new rotor housings but who knows if they resurfaced the end plates or just reused them.....
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Old 07-09-2017, 08:41 AM
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Mazda remans have the bare minimum to get the engine running again.

Any rebuild under $2500 will be the same. Probably similar for most rebuilds under $3500 since that's the cost of the parts alone (not including labor) for seals, housings, etc through Mazda Motorsports Development.
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