Reliability Modifications to the S4 T2
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Rotartist
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Reliability Modifications to the S4 T2
Seached all through the FAQ, and archives. I am looking for a one stop shop for T2 specific RELIABILITY modifications.
I have a S4 T2 I want to keep stock engine wise, but I would like to make it as reliable as possible. Are there some one stop shop threads? I know about the 60k tuneup stuff, what dont I know about for T2's?
I have a S4 T2 I want to keep stock engine wise, but I would like to make it as reliable as possible. Are there some one stop shop threads? I know about the 60k tuneup stuff, what dont I know about for T2's?
#3
rotorhead
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just replace all fluids, hoses. and lines, especially that coolant hose by the firewall which leaks, the OMP vacuum spider, all intake gaskets. Check to see if your cats are clogged. The T2 doesn't need reliability mods in the same way that the FD does (like aluminum AST), it just needs the stock stuff checked and replaced if not functioning.
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belts, hoses, all fluids changed (coolant flush), thermostat, fuel filter and pickup sock, waterpump, fuel pulsation damper, clean injectors with new orings/grommets, downpipe/new exhaust gaskets/check main cat for leaks at the inside seams, SS braided oil cooler lines, vacuum hoses, check TID and lower turbo coupler for cracks/leaks, possible clutch slave and master replacement. Check EGR valve for leakage under vacuum. Be sure all plastic ducting is present in the front of the car for best cooling.
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Koyo rad, e-fan, fmic, nicely boxed in K&N w/ source of air, and power fc commander. They aren't necessary but would help.
Last edited by Boosted11; 07-03-08 at 09:20 PM.
#6
rotorhead
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^ if he's trying to keep the motor very close to stock, those aren't necessary at all. The stock radiator is perfectly fine on a stock car. FD's had bad cooling systems from the factory, for factory power levels.
Stainless oil cooler lines is another reliability mod though, I forgot about that. Just about everything else isn't really a "mod" so much as just fixing factory stuff. Clean all your ground wires including the battery ground.
Stainless oil cooler lines is another reliability mod though, I forgot about that. Just about everything else isn't really a "mod" so much as just fixing factory stuff. Clean all your ground wires including the battery ground.
#7
Former Moderator. RIP Icemark.
Things to do for relaibility on a FC motor past 75K miles:
E-shaft thermo pellet, Pulsation Dampener, belts, hoses, spark plug wires and plugs, Mazda oil filter, fuel filter.
Things to do on a FC every 30K miles
Belts, fluids (including tranny and rear end), spark plugs, air filter, repack wheel bearings.
E-shaft thermo pellet, Pulsation Dampener, belts, hoses, spark plug wires and plugs, Mazda oil filter, fuel filter.
Things to do on a FC every 30K miles
Belts, fluids (including tranny and rear end), spark plugs, air filter, repack wheel bearings.
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#8
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For realiability, the mod's are very simple. Just do regular maitenance such as what has been listed above, and don't beat the hell out of the car all day long. Bringing the car up to red line on a regular basis is a must as well as that helps eliminate carbon buildup inside the engine. Aswell, make sure all your major grounds are clean and not loose or corroded. Aaron Cake has a good article on grounds here http://www.aaroncake.net/RX-7/grounding.htm
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I think everything has been mentioned except for OMP lines upgrade. I intend to do this eventually, just haven't gotten around to it.
There's a how-to somewhere but I forget who posted it, so search. Basically replaces the omp oil lines with upgraded hose that is more resistant to heat and will stay flexible as most people's omp lines are usually pretty hard after being in that hot engine bay for around 20 years.
Some say it's over kill, but it sounds like that's what you going for.
*EDIT: Found the link in the archives.
https://www.rx7club.com/showthread.p...ight=mop+lines
There's a how-to somewhere but I forget who posted it, so search. Basically replaces the omp oil lines with upgraded hose that is more resistant to heat and will stay flexible as most people's omp lines are usually pretty hard after being in that hot engine bay for around 20 years.
Some say it's over kill, but it sounds like that's what you going for.
*EDIT: Found the link in the archives.
https://www.rx7club.com/showthread.p...ight=mop+lines
#10
Rotary Revolutionary
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+ 1 for oil cooler lines!
I'd flush the cooling system and replace the water pump and thermostat as well. Emissions removal will help simplify things and silicon vaccum hoses would be nice while you're at it. Other than that, regular tune up things should take care of it.
I'd flush the cooling system and replace the water pump and thermostat as well. Emissions removal will help simplify things and silicon vaccum hoses would be nice while you're at it. Other than that, regular tune up things should take care of it.
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