What kind of parts should i use for a good tune-up for cheap
i have a 1991 coupe rx-7 with 145,xxx miles
and should i replace the pulsation damper
thanks

 

you cant replace teh FPD without changing the entire fuel rail on S5's. New spark plugs and an new O2 sensor should help as well, plugs run 5bucks or so (NGK's) and a sensor should be about 20ish

 

So i shouldn't replace the pulsation damper unless it's giving me problems

what sensor do you mean FirstRotaryExp

 

he means your 02 sensor

 

Yeah, thanks for that....i had put it down but mustve deleted it and hit send without looking... but dont forget a fuel filter and air filter as well, but the fuel is more important if its never been done.

 

"Good" tune-up? Not exactly cheap, but entirely worthwhile...

NGK spark plugs: BUR7EQ Leading, BUR9EQ Trailing

Fuel filter: RX7.com

Oil Filter: RX7.com sells Nippon (Mazda) 4-packs

Oil: Castrol GTX 20w50

Manual Tranny: Redline MT90 Synthetic Transmission Fluid - http://www.247-parts.com

Rear End: Redline 75w90 Differential Fluid - http://www.247-parts.com

Rear End Additive: Redline Differential Additive - http://www.247-parts.com

O2 Sensor: RX7.com

Replace all vacuum hoses with silicone, a kit can be bought from Hose Techniques.

Replace all fuel hoses with 5/16 Interal diameter fuel injection hose, can be bought at any auto parts store.

Replace air filter

Spark plug wires


Like I said...in no way cheap. But..this is a thorough tune-up, and is what every RX7 should have done when bought..

Also, it's always a good idea to refurbish all stock grounds, as eventually they will most likely fail on you :P

 

How about stuff i could get at a autoparts
please be specific on the brand

 

AdRock is Specifying Brands,Trueno..You do Not want to Go Cheap with your Car..do it Right and it will treat you Right.Using Cheap Oil will Kill the Engine.You can always Go to the "Stealership",but The brands Specified are Proven By Many an Experineced Rotary Owner.You can get Redline at an Auto Parts Store.you can Use a Bosch Universal O2 Sensor.The Air Filter Can be K&N..Spark Plugs,Go with the NGK Platinums..Wires-NGK..Change your Coolant and Thermostat and Cap too,to take care of the Cooling System(OEM thermostat and Cap..50/50 dex-cool and a Bottle of Water-wetter)..I'm sure there will be More on "your tune-up"..But alot of it has been Mentioned already.As Far as the Pulsation Damper..it's up to you.Personally I wouldn't go Fixin what isn't Broke,But the Part is a Volitile one.If Changing it out would put you More at Ease.then Go for it.after all it's your Dime.

 

hmm cheap? Get a bottle of fuel injecter cleaner and add it to a full tank of gas. Get a pack of STP fuel treatment too from walmart if you got an extra 3 dollars. Not exactly parts, but stuff that would help, for cheap...

 

Bosch O2 sensor
NGK plugs as stated above
Fuel filter.....anything the store has should work fine.
Oil Filter....apparently OEM is just right....but no fram
Oil same as above. though could possibly use 10w 30

 

Thanks you guys are a real help

 

NO! NO DEXCOOL.

That stuff eats up the seals in our engines. GREEN coolant, not red.

 

Frack!..That is right!..I am so Sorry to Post that.I was tryin to remember what color was Named what..Thanks RICK!..and I apologize to the Thread starter.

 

You should definetely do the FPD!!!!! It's only about 1/3 more expensive to replace the entire fuel rail and FPD on an S5 than it is to just replace the FPD on an S4. While you're at it replace all the injector O-rings and seals.

Change ALL the fluids (coolant, oil, tranny, diff, brakes, clutch).

Another thing to consider besides what's been mentionned is the in tank fuel filter, it's the cause of a potential problem where the car looses most of its power when cornering hard in left handers.

Basically check over everything and if it's worn or looks suspicious, then replace it.

 

So what oil should i use the
10w30 or
20w50

 

Well i dan't find any redline products here in CA, Azusa
so what else should i use instead

 

Just order everything I listed..it is the best, and the only stuff I think should ever be used. Accept no imitations..


Use 20w50 in Cali. It is a heavier weight then 10w30, but seeing as you have no harsh cold, it will be perfect.

 

10w30 for winter/cold
20w50 for summer/warm
in cali i see no reason to use 10w30 though your winters are pretty warm.

 

Royal Purple is still pretty good, I don't know exactly it compares to Redline, but it's still got a pretty good reputation, just not quite as good as Redline. In all honesty though, unless you're having problems with the car, ordinary fluids should be just fine, especially if you're not taking the car to the track or anything like that.

 

i've never heard of this. the only instances i've seen failed seals are from age/heat (cracks) and from the iron lip eroding around them, allowing them to slip out.

 

I use 20w/50 oil in my engine.

 

The idea with using green coolant is just the margine of error. A super good, clean coolant flush will still leave behind slight residue or even a good amount of green, or whatever coolant has always been used in that engine.


Mixing coolant does NOT work. Mixing green with orange or red will result in SLUDGE. As some of you may not know...sludge does not promote "flow."

 

Does anybody have a diagram or a pic of were all the fuel hoses are
And does anybody know which is the Leading and Trailing spark plug wires are
confuse on which is which

 

You should get a manual. Haynes is good. You can also download the Factory Service Manual (FSM) online. I beleive there's a link in one of the stickies (FAQ?) at the top of the 2nd gen section.