Dedicated to everyone who will "never drive a rotary again!"…
07-29-2007, 05:32 PM
#51
Not if you don't have any internal damage. A failed Renesis is only plaigued with excessive carbon build-up inside the engine. In this case, it cost next to nothing to refresh the carbon infested engine rather than spend 1,800-2,200 for a junk yard engine. Nothing internally will be out of spec. Been there done that with great success. Even Kevin Landers at Rotary Resurrection will back that up. If I were you, I would be opening all these engines and doing an internal cleaning. That's all they really need.
Last edited by T-von; 07-29-2007 at 05:50 PM.
07-29-2007, 05:35 PM
#52
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"None of the RX-8's times touched those of our old 255-hp, 2884-pound twin-turbo RX-7, which put out 5.2-second rushes to 60 mph and 0.93-g skidpad runs. But neither do the RX-8's frustration levels touch the RX-7's. We made nine unscheduled stops in the RX-7 to the RX-8's three. After the converter and A/C fixes, the RX-8 ran flawlessly, with only its oil addiction and scheduled service stops to crack the hood. There were three of the latter, costing $25 to $30. There was one $90 rip-off, and the big 37,500-mile service ran $411 and changed out the filters and spark plugs as well."
07-29-2007, 05:46 PM
#53
Car and Driver, long term test, 40K miles, 9/05…
"None of the RX-8's times touched those of our old 255-hp, 2884-pound twin-turbo RX-7, which put out 5.2-second rushes to 60 mph and 0.93-g skidpad runs. But neither do the RX-8's frustration levels touch the RX-7's. We made nine unscheduled stops in the RX-7 to the RX-8's three. After the converter and A/C fixes, the RX-8 ran flawlessly, with only its oil addiction and scheduled service stops to crack the hood. There were three of the latter, costing $25 to $30. There was one $90 rip-off, and the big 37,500-mile service ran $411 and changed out the filters and spark plugs as well."
"None of the RX-8's times touched those of our old 255-hp, 2884-pound twin-turbo RX-7, which put out 5.2-second rushes to 60 mph and 0.93-g skidpad runs. But neither do the RX-8's frustration levels touch the RX-7's. We made nine unscheduled stops in the RX-7 to the RX-8's three. After the converter and A/C fixes, the RX-8 ran flawlessly, with only its oil addiction and scheduled service stops to crack the hood. There were three of the latter, costing $25 to $30. There was one $90 rip-off, and the big 37,500-mile service ran $411 and changed out the filters and spark plugs as well."
That's one car and one test what's your point? Please go back and read my post again. I'm speaking only of the excessive carbon build-up related issues with the internal design change and the number 1 source of all the rx8's related engine problems. The excessive carbon build-up is what's killing these engines. Also for the record, as complicated as the Fd's 13brew was, it was never recalled for total engine replacement. I'm not trying to compare which engine is better here.
Last edited by T-von; 07-29-2007 at 06:00 PM.
07-29-2007, 06:35 PM
#54
I agree about the rotary not being to user friendly for the average consumer however, the Renesis rotary's major source for the recall has been due to this engines (Renesis) excessive amounts of carbon build-up and plug fouling that hurts the engines compression. From day one I always felt the side exhaust port could cause these problems. Mazda never had such a serious problem like this on it's older peripheral exhaust ported rotary's. If Mazda of America knew anything about this engine, they could have easily prevented all these unnecessary recalls and just simply had the dealers perform carbon cleanings from day one as a required part of this engines maintenance.
Originally Posted by T-von
Do any of you even know what Mazda is actually doing with the remans they send to have rebuilt? Low mileage engines are opened and cleaned, get new apex seals, teflon coated rotors to fight carbon build up, and a new gasket kit. Sounds pretty simple huh? That's really all the engine needs. Everything else inside the engine isn't even worn down enough to warrant replacing since everything else will be well with-in spec.
Originally Posted by T-von
In this case, it cost next to nothing to refresh the carbon infested engine rather than spend 1,800-2,200 for a junk yard engine. Nothing internally will be out of spec. Been there done that with great success. Even Kevin Landers at Rotary Resurrection will back that up. If I were you, I would be opening all these engines and doing an internal cleaning. That's all they really need.
Ultimately, it is more cost effective to just yank the motor and drop in a replacement.
A refresh will take a dealer tech a minimum of 9 billable hours and $800 to $1600 in seals, gaskets and O-rings. (On top of the 13 billable for the RnR.)
It doesn't matter - the housings are "out-of-spec", even without catastrophic apex seal failure.
07-29-2007, 09:00 PM
#55
It doesn't matter - the housings are "out-of-spec", even without catastrophic apex seal failure.
That doesn't make any since. Please eliaborate on the cause. I can't imagine or have I've ever seen carbon destroy a rotor housing unless the engine carbon locked causing apex seal breakage.
Last edited by T-von; 07-29-2007 at 09:03 PM.
07-29-2007, 10:13 PM
#56
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Having been following some of those issues posted above, I suggest you read those links and do some follow up yourself.
All cars have recalls and TSBs. None of the failures shown above even compare generally to the massive Mazda RX-8 engine recall. Its not even the same league. ...
All cars have recalls and TSBs. None of the failures shown above even compare generally to the massive Mazda RX-8 engine recall. Its not even the same league. ...
07-29-2007, 11:04 PM
#57
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07-29-2007, 11:42 PM
#58
Williams has a massive graveyard of housings and end plates.
It is a recall that is open to ALL RX-8s. Can't possibly be any more massive than that (compared to the BMW recall which is model and year specific).
07-30-2007, 07:06 AM
#59
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There are many such recalls on many types of cars. That still doesn't answer the question of how you determine it's a "massive" problem... unless you define any recall as a massive problem.
07-30-2007, 07:50 AM
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NEW YORKER are you going to sevenstock?
I would really love to see the # of engines replace, most car company's fix the engines instead of replacing them thats the real diference
I would really love to see the # of engines replace, most car company's fix the engines instead of replacing them thats the real diference
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