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-   -   Motor Popped (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/motor-popped-283268/)

FlameThrowingRotary 03-15-04 10:24 PM

Motor Popped
 
Well it wasn't flooded the whole time, it just broke an apex seal. dont know how it happened, just started it and moved it in the garage and it never started again. Anyone know any places to get a decent price rebuild with better apex seals and street port. been told 5200 to 5500 as long as the blocks in good shape. Any suggestions?
Later
Kyle

Fatman0203 03-15-04 10:26 PM

A mazda reman will run you 2200 from Malloy.

FlameThrowingRotary 03-15-04 10:28 PM

yeah but I dont wanna a reman, this is it's second reman, I wanna put stronger parts and have it ported while it's out so I go single turbo. if i'm gonna fix it might as well do it right. thanks though

XSTransAm 03-15-04 10:28 PM

how do you know it broke an apex? and what do you mean it wasent flooded the whole time?

FlameThrowingRotary 03-15-04 10:31 PM

i had another post going this week about it being flooded and not starting. and they did a compression check and it seals, no seal no seal, seal so evidently it one shot out the exhaust. also so carbon flakes on the ground where it shot out the back when i started it.

XSTransAm 03-15-04 10:38 PM

so would the car just crank and crank, and almost start but not light up?

FlameThrowingRotary 03-15-04 10:39 PM

yeah

XSTransAm 03-15-04 10:41 PM

https://www.rx7club.com/showthread.p...hreadid=282408

you have me scared now :(

cdk 4219 03-15-04 10:48 PM

Re: Motor Popped
 

Originally posted by FlameThrowingRotary
Well it wasn't flooded the whole time, it just broke an apex seal. dont know how it happened, just started it and moved it in the garage and it never started again. Anyone know any places to get a decent price rebuild with better apex seals and street port. been told 5200 to 5500 as long as the blocks in good shape. Any suggestions?
Later
Kyle

Put some pistons in it, they dont spit out through the tailpipe when starting it in the garage. A nice LS1 should do it.

Fatman0203 03-15-04 10:51 PM


Originally posted by FlameThrowingRotary
yeah but I dont wanna a reman, this is it's second reman, I wanna put stronger parts and have it ported while it's out so I go single turbo. if i'm gonna fix it might as well do it right. thanks though
Ummm, I guesse Gotham Racing or Rx7 Store. Good reps on them so far.

FlameThrowingRotary 03-15-04 10:52 PM

mine sat for 2 weeks cause of a bushing problem in the rear so I didnt drive it. whats weird is I drove it for around 5 miles, decided to just tow it. started it to back up for the tow truck, got home, started to drive in garage. 4 days or so later i started again to move it in the garage and an hour or so later i tried to move it back and it never started again. had it towed to austin and got the bad news today

rx7raca 03-15-04 10:53 PM


Originally posted by XSTransAm
https://www.rx7club.com/showthread.p...hreadid=282408

you have me scared now :(

if your scared, do a compression check when you take out the plugs, 15bux at any parts store.

dgeesaman 03-15-04 10:55 PM

Re: Re: Motor Popped
 

Originally posted by cdk 4219
Put some pistons in it, they dont spit out through the tailpipe when starting it in the garage. A nice LS1 should do it.
Can Malloy do that for 2200 as well?

;)

Mr rx-7 tt 03-15-04 11:02 PM


Originally posted by FlameThrowingRotary
yeah but I dont wanna a reman, this is it's second reman, I wanna put stronger parts and have it ported while it's out so I go single turbo. if i'm gonna fix it might as well do it right. thanks though
Mazda uses new apex seals in their remans as well as brand new rotor housings. Those seals are good for over 1000 hp. You have an issue that is causing you to break engines. (Clogged fuel filter, bad injector, bad fuel or a lean condition).

rx7raca 03-15-04 11:02 PM


Originally posted by FlameThrowingRotary
mine sat for 2 weeks cause of a bushing problem in the rear so I didnt drive it. whats weird is I drove it for around 5 miles, decided to just tow it. started it to back up for the tow truck, got home, started to drive in garage. 4 days or so later i started again to move it in the garage and an hour or so later i tried to move it back and it never started again. had it towed to austin and got the bad news today
for some reason, it sounds like you guys treat your rotaries like a piston engine. My fc was sitting all winter(about 4 months) I went out there and she started right up. an engine doesnt just break sitting for 2 weeks..

whats very important is that when you first start an engine for the first time in a while, let it idle for like 20min, unless temp raises. then drive like an old lady for about 20-50 miles(that means no boosting!!), you gotta baby the rotary...
reason i say this is because sometimes seals get little stuck, so its not good to rev(past 3k!) it to much until those seals are normal again.
this is just my opion, you dont have to do it, but i think its very important. just my .02

BigIslandSevens 03-16-04 01:13 AM

Gotham Racing has there standard engine rebuild for around 2495.00 i believe. Street ports are a little bit more but Steve and the others there have built some nice engines for a few members now. That's where I will be getting one ....after I pay all these friggin taxes!! Give them a call or check out there site.

rxrotary2_7 03-16-04 05:40 AM


Originally posted by Mr rx-7 tt
Mazda uses new apex seals in their remans as well as brand new rotor housings. Those seals are good for over 1000 hp. You have an issue that is causing you to break engines. (Clogged fuel filter, bad injector, bad fuel or a lean condition).
right. :)
but they dont use brand new rotor housings for each motor. (i could be wrong)

Snook 03-16-04 05:44 AM


Originally posted by rxrotary2_7
right. :)
but they dont use brand new rotor housings for each motor. (i could be wrong)

if you get it from malloy it will have new housings

rx7raca 03-16-04 06:32 AM

or you could rebuild it yourself for under 2k...and port it yourself for free.

RX7Wishing 03-16-04 08:31 AM

malloys remans are 1975

zayrx7 03-16-04 08:32 AM

large street port from www.rx7store.net $2850.00

pomanferrari 03-16-04 08:33 AM

I let my car sits for weeks at a time. It starts right up and runs great.

There must be some other issues with your car. An engine just doesn't sit for 2 weeks and then loses an apex seal. Even the reall shitty first reman that I got (when it was installed in my car, it had been rebuit for the second time by Mazda) I would let the car sits for a month with no problem.

With the reman that I got from Ray, it's even better at starting. New housings for sure and I get 18 in of vaccum at cold start and 19 in. after warm up.

Fatman0203 03-16-04 09:42 AM

Could a failure of the OMP pump have caused this?


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