HI ,

I have Shinka RX8 2005 special edition with 95K miles on it.
I have been having Hot Start Problem from past couple of months.
So I got a compression test done from Mazda Dealer and i am attaching the results.
Can anyone interpret the results and tell me whether this can be fixed by an engine rebuild?

Dealer suggested to replace the engine for 5100$ or better yet sell the car.

I do NOT want to sell this car

Please help

Location: Newark NJ

 

the differential compression fails as well as the hot cranking numbers for the front rotor.

you can try a decarb and drive it for a few weeks and cross your fingers.

even a rebuilt engine will run you the same as a mazda remanufactured engine, no way around that and the results can be as sketchy as a mazda reman would be. all in all to fix the compression would run you at minimum $2300 even if you remove and reinstall the engine yourself.

 

Hi karack,

I used bg44k around a month back and did long run on it...but issue still persisted so i took it for a compression test.

So whats my best way out of this situation?

 

Low compression like that is just a result of wear from mileage. Unfortunately there isn't any quick, easy, cheap fix for that. Like Karack (haven't used that name in a WHILE!! lol) suggested, you have two options: 1) replace the engine with one from Mazda, 2) Have it professionally rebuilt by a *competent* rotary shop.

Shop wise, you've got two reputable ones "near" you: IR Performance (Metuchen, NJ) and Speed1 (Lenhartsville, PA). They are both easily googled, I'd give them both a call and discuss your options with them.

Either way, I would also consider having your irons sent out for lapping and re-nitrating (Chips Motorsports is very competent wrt the lapping/nitrating).

 

Contact Rotary Resurrection. With those numbers I doubt you have any core damage. Most likely your apex seals are worn and the slight expansion of the metals when warm are causing a drop in compression. If you can pull and strip the engine yourself he can rebuild it for far less than the cost of a reman.

 

with 100k+ miles you will also probably have to worry about rotor housing replacements, which run from $300+ used to $1500 new. every reman engine from mazda i have received all had brand new rotor housings and the engines cost $2001(why not an even $2k i don't know....).

many people have issues with mazda remans though, but i suspect the issue mainly rests on the installations and not as heavily on the engines as many people suggest. i have not had a single issue with any mazda reman i have installed.

there are other options mentioned if you choose to have it rebuilt. i only rebuild blocks with less than 70k miles because beyond that i can't beat mazda's prices and with many other rebuilders you will likely run into the same situation. just that most tend not to trust mazda remans as much as i do.

 

Are you talking about 13B-REW engines here, or 13B-MSP's as well?

I'm curious because I know for a fact that they are using new parts on the FD remans due to lack of availability of reusable cores being turned in. I wasn't sure if the rx-8 engine was in the same boat or not though.

 

My rebuilt engine from Mazda in IL cost $3,400....

 

Thanks for the input guys....
In conversation with IR Performance.
Sent them my compression result.
Waitin to hear back from em..

 

this is the RX8 forum, if i were to mention an RX7 engine i would specify that.

all the 13B-MSP RX8 remans i received had new housings. the irons were reused and likely most every other major component though.

if that was just for the engine/gasket kit then you got ripped off, suggestion to anyone is to call around to dealers and get various prices because they all won't necessarily be the same due to different markups at different dealers. if that included engine replacement labor then that is actually very good for dealership pricing.

 

Last september the price on the Mazda remans went up too, it's not at $2,001 any more. A big jump to $3,300 and change. Rebuilding may be cheaper than buying a reman under more circumstances than before.

 

hi guys, my car rx8 2004, and now I got problem with hot not start, what can I do with it
please help I don't want to spent much money for it
thanks...

 

Get a compression test.

 

Glad to see that Mazda wants to boost up the prices.

My bill was for labor and the engine. They even allowed me to bring in a new clutch that they threw in for free, since the engine was out.

I lucked out, and had an extended warranty on my car (still do for the next year), which means I only paid $100. Though, he told me what they billed the warranty company.

 

that sucks, i haven't priced one since then but that is a rather rediculous price hike.

but i guess i shouldn't be complaining, just means more potential business even though i'm not a huge fan of rebuilding the MSP anyways due to the larger than average potential for compression issues.

 

dropped my car on wednesday at IRPerformance....

 

Sandeep, did you get it back?

IRPerformance did some work for me last week. Good guys, solid rotary experience. I was impressed with them and their shop.

 

yup i got it back
better than new.
They are awesome