New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Advice: 1990 rx7

Thread Tools
 
Search this Thread
 
Old 07-05-11, 01:48 AM
  #1  
Junior Member
Thread Starter
 
TGreg104's Avatar
 
Join Date: Jul 2011
Location: United States
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Advice: 1990 rx7

Hey guys, I need some honest advice. I'm in the market for a new car for when I go back to school since my Integra won't cut it. I stumbled upon a nice 1990 NA rx7 for sale. My main question is, truely, how reliable is this car going to be. I realize that there's no way for you to tell me how this exact car is going to be, but generally speaking, how reliable are rx7s of this age? It's going to be driving distances of 30 miles often, at least 4 times a week if not more. I plan to possibly put 10,000 miles on it just in a school year. The weather up here in PA is quite chilly, can it handle the sometimes harsh winters. I know the rx7 is a great, fun car but I need it to not break down. I'm not hard on my cars, although I do drive 'spiritedly' when on, say, a winding country road.

Here's the specs:

The car's been garage kept every winter and has no rust anywhere. a slight bubbling on the base of the passenger front fender but nothing major at all. Body is very clean except for a few imperfections (small dings and a scratch in the clear coat) again nothing major. It was just inspected with emissions in May and passed with flying colors. I just had the tires rotated, oil changed with premium 5w30, and catalytic converter fixed (it had collapsed). I replaced the front brakes early fall last year and didn't drive it through the winter. Fixed a small coolant leak by replacing the thermostat housing. The car has a little over 250K miles on the body, all highway from traveling across country many times. The engine and the tranny have about 90K. Never been wrecked and always maintained properly, I have every service record on the car including the original window sticker from Mazda. All lights, signals, and warning lights work perfectly.

The engine runs very strong and the tranny shifts fine, clutch is good. Takes turns like a dream. Could use a tune up, tires (not immediately), and rear pads (30 bucks from advance).

specs are as follows:

13B rotary engine (non turbo but about 180 hp)
Dynomax exhuast
RWD
5 speed manual
Front and Rear Sway Bars
4 piston front brakes
2 seats
Apline CDA-9886 headunit
Boston Acoustic front speakers with separate tweeters
Alpine type-R 6.5" 2-way back speakers
Here's the direct link (w/pics):

http://pittsburgh.craigslist.org/cto/2466211269.html

Also when texting him for info he told me that it has a pinhole sized hole in the radiator, doesn't leak (puddle on the ground) or cause over heating but rather just have to put more coolant in. The car has never been over heated. Is this hole a problem? The interior is allegedly mint, though I have yet to see it with my own eyes.

I'm going out to look at it tomorrow, anything I should check specifically? I read the "how to buy an '86-'92 Non Turbo rx-7" page so i feel a general idea.

Any input at all is extremely appreciated, thanks in advance.
Old 07-05-11, 10:20 AM
  #2  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes on 91 Posts
Originally Posted by TGreg104
Hey guys, I need some honest advice. I'm in the market for a new car for when I go back to school since my Integra won't cut it. I stumbled upon a nice 1990 NA rx7 for sale. My main question is, truely, how reliable is this car going to be. I realize that there's no way for you to tell me how this exact car is going to be, but generally speaking, how reliable are rx7s of this age? It's going to be driving distances of 30 miles often, at least 4 times a week if not more. I plan to possibly put 10,000 miles on it just in a school year. The weather up here in PA is quite chilly, can it handle the sometimes harsh winters. I know the rx7 is a great, fun car but I need it to not break down. I'm not hard on my cars, although I do drive 'spiritedly' when on, say, a winding country road.
Well, it's a 20+ year old car so it's bound to have some issues. But if maintained, then they are quite reliable. No issues with cold weather as long as the car is in good tune.

If you want a reliable daily driver then after purchase you'll need to set aside some time and money to go over the entire car and replace all the worn bits. Common examples are dirty/leaking injectors, rotted rubber hoses, all filters, suspension bushings and rubber parts, transmission, diff and engine mounts, etc. Really, the same stuff you'd find on any old car.

The car's been garage kept every winter and has no rust anywhere. a slight bubbling on the base of the passenger front fender but nothing major at all.
So that'd be rust, then. With bubbling on the lower front fender, you'll probably find rust on the inner wheel well and inner fender area where it meets the rocker. Likely not visible until you pull the wheel well liner.

Frankly, I'd immediately knock $500 off the price considering I'd need to replace and repaint the front fender. And then I'd look VERY carefully at the rest of the car.

just had the tires rotated, oil changed with premium 5w30,
Too thin an oil for summer use when the temperature is in the 20s (C). 20W-50 or at the least 10W-30 is specified in the manual.

housing. The car has a little over 250K miles on the body, all highway from traveling across country many times.
Any body with that mileage is going to need new shocks, springs, bushings and other assorted suspension bits. Plus all the rubber should be replaced.

Could use a tune up, tires (not immediately), and rear pads (30 bucks from advance).
Hmm...odd that he mentions it could use a tune up. Why?

And why would he just not replace the brake pads if they are "30 bucks from advance"?

13B rotary engine (non turbo but about 180 hp)
No, about 165HP from the factory at the flywheel.

RWD
5 speed manual
Front and Rear Sway Bars
4 piston front brakes
2 seats
Yeah, these are all standard features of the car...

Also when texting him for info he told me that it has a pinhole sized hole in the radiator, doesn't leak (puddle on the ground) or cause over heating but rather just have to put more coolant in. The car has never been over heated. Is this hole a problem? The interior is allegedly mint, though I have yet to see it with my own eyes.
Uh, pinhole leak in the radiator, or a pinhole leak in a water o-ring causing coolant to be burned? When you look at it, be sure to have him point out the exact location of the pinhole.
Old 07-05-11, 12:42 PM
  #3  
Junior Member
Thread Starter
 
TGreg104's Avatar
 
Join Date: Jul 2011
Location: United States
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Aaron Cake
Well, it's a 20+ year old car so it's bound to have some issues. But if maintained, then they are quite reliable. No issues with cold weather as long as the car is in good tune.

If you want a reliable daily driver then after purchase you'll need to set aside some time and money to go over the entire car and replace all the worn bits. Common examples are dirty/leaking injectors, rotted rubber hoses, all filters, suspension bushings and rubber parts, transmission, diff and engine mounts, etc. Really, the same stuff you'd find on any old car.



So that'd be rust, then. With bubbling on the lower front fender, you'll probably find rust on the inner wheel well and inner fender area where it meets the rocker. Likely not visible until you pull the wheel well liner.

Frankly, I'd immediately knock $500 off the price considering I'd need to replace and repaint the front fender. And then I'd look VERY carefully at the rest of the car.



Too thin an oil for summer use when the temperature is in the 20s (C). 20W-50 or at the least 10W-30 is specified in the manual.



Any body with that mileage is going to need new shocks, springs, bushings and other assorted suspension bits. Plus all the rubber should be replaced.



Hmm...odd that he mentions it could use a tune up. Why?

And why would he just not replace the brake pads if they are "30 bucks from advance"?



No, about 165HP from the factory at the flywheel.



Yeah, these are all standard features of the car...



Uh, pinhole leak in the radiator, or a pinhole leak in a water o-ring causing coolant to be burned? When you look at it, be sure to have him point out the exact location of the pinhole.
Thank you so much for your input. Yeah its a 21 year old car so idk, I really like fc's but idk if its what i need. I'll make sure to question him on why the car needs a tune up and where the pinhole is. I believe he's talking about in the radiator. I read that rx7's have a problem with grounding, are there any specific grounding spots that go first that I should look and check. I'm really not TOO worried about rust because my other two cars are pretty shitty now, so this is an upgrade. I'll probably offer him 3000 for it, or do you think I could get less? I'll be sure to take pictures and post them. If there's anything specifically on the car that you would like to see to check let me know.

Again thank you guys.
Old 07-05-11, 07:09 PM
  #4  
Junior Member
Thread Starter
 
TGreg104's Avatar
 
Join Date: Jul 2011
Location: United States
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Well I went to see the car and I'm impressed. He has the original owners manual, all of the paper work everything. The interior is mint, paints decent for a 21 year old. Only a couple of negatives like the fact that the exhaust is too loud. He said that when they replaced the cat they didnt tighten it enough and it came loose and the seal/gasket fell out now theres a gap.

Idk mechanically it seems good. I'm just worried about it being a Daily driver. Any input?
Old 07-05-11, 08:48 PM
  #5  
Junior Member
Thread Starter
 
TGreg104's Avatar
 
Join Date: Jul 2011
Location: United States
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
I made another thread about the rx7 being a daily driver through the winter, but I found my answer in a thread from '08. (guess i should of searched better first). Next question is what is the easiest way to protect my undercarriage with all the salt in the winter.
Old 07-05-11, 09:01 PM
  #6  
country w@nk

 
curtisloew's Avatar
 
Join Date: Jun 2011
Location: arkansas
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
I've had 4 rx7s and anytime I've had someone ask if they should get one I respond by telling them to read up on how a rotary functions and the do and Don't of keeping it drivable,and always be prepared to rebuild it at any point especially if its a Turbo, NA are not as prone to fail. I wouldn't give more than 2500.00 check the black book value.
Old 07-06-11, 12:31 AM
  #7  
Junior Member
Thread Starter
 
TGreg104's Avatar
 
Join Date: Jul 2011
Location: United States
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
what is black book value? only heard of blue.

I'm thinking under 3 especially since it needs six new tires.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
plentymoon
NW RX-7 Forum
4
09-05-15 08:55 AM
7up-n-cider
Introduce yourself
1
08-24-15 07:02 AM
Im faster
General Rotary Tech Support
4
08-19-15 02:57 PM



Quick Reply: Advice: 1990 rx7



All times are GMT -5. The time now is 06:56 AM.