cap and rotors

[onehot951]

does anyone have a preference when it comes to replacing caps and rotors. i know with spark plugs and wires everyone has one they like. i decided to take a look and see how mine were doing saying they havent been checked or changed in quite some time and this is what ive found. car is running great but on the inside of the cap it appears to be scored and the tip of the rotor itself seems very small compared to the one shown in the magazine. figured i would run it by you heres the pics

[myskyon]

just make shure you put it back on correctly or it will look like mine did here.

[onehot951]

OUCH! i bet that made one of those noises we dont like to hear. did it even start?

i was reading a post earlier about replaceing the blow off valve because it was 19 years old. same thought i had with the cap and rotor they arent all that expensive, but the do work without any problems. just curious if a newer cap and rotor would help anything other than piece of mind


Thanks for the pics

[myskyon]

Originally posted by onehot951
OUCH! i bet that made one of those noises we dont like to hear. did it even start?

i was reading a post earlier about replaceing the blow off valve because it was 19 years old. same thought i had with the cap and rotor they arent all that expensive, but the do work without any problems. just curious if a newer cap and rotor would help anything other than piece of mind


Thanks for the pics

yes the car started and ran too i unknowingly drove it like that for about 2 months. the whole time i could not figure out why i was having boost problems well it was because i was loosing spark. also on the bypass / blow off valve i really recomend the one LR sells i know you can find it other places but get the billit aluminum one it doesnt have a diafram and wont go bad like the factory one and its rebuildable. that is a headach trying to diagnose that too. as mine failed on me. and i really hope you have a spare DME relay in your car too. that is cheap ins. you dont want that to go bad when you are out in the middle of know where or like me getting on the highway.

[onehot951]

main thing i noticed and thats why i started looking at the cap and rotor as well as the plug wires is that the car doesnt seem consistent. if i drive it around all week and shift at 3000 rpm and behave.... when i do finally jump on it, its makes the noise likes its going, but it doesnt pull as hard as when i jump on it a second time. someone said something about carbon buildup possibly causing it but its always done it from day 1 @ 54,000 miles when i got it

[myskyon]

hmmm well i am no expert with this car but i would get new high performance wires, copper plugs new cap new rotor and a new coil (MSD blaster works good) everything can be had at LR for pretty cheap. and its good insurance to know its all new and all good stuff. and then take your car out for a spin and see if she does act up again.
now as for my car it doesnt like to be driven at low rpms for very long with out opening her up. i dont know why but if i do the same ting shifting at 3k and not getting into it for a while i get other problems like not wanting to start and other wierd stuff. now if i open her up and let her streach the legs she never gives me any problems.

[onehot951]

hmmm at this point im wondering where everyone else is shifting and how often they wind them out. my mechanic who worked for porsche a LONG time ago says it doesnt hurt them to wind them out and that they were designed for it. but i dont believe in beating it to death

[CJFusco]

Are you serious? I probably "wind mine out" (about 6K rpm) AT LEAST once a day, unless it is raining. These cars are meant to run like that, they aren't GMs! It's a Porsche, man, drive it like one. Letting it rev isn't "beating it to death".

As a matter of fact, mine seems like it runs better when I drive it harder for awhile. Cleaning out the fuel system, probably

[nynor]

mine runs best after a day autocrossing.

[onehot951]

funny you mentioned GM, only fast cars i had before this were 4 Corvettes and a little 72' datsun 240Z, which wasnt all that fast. the corvette place said most corvette motors were getting alittle tired after 100,000 miles and to go ahead and the the valve guides and rings done when i got there. as with the porsche, getting it earlier in its life at 52,000 miles made me not beat on it if the same thing was going to happen. porsches are more expensive to fix so mine pretty much has been babied for 40 thousand miles. at least thats the way it sounds

[soxnail]

205 k miles. No babying here.
Sox

[onehot951]

very cool! 205 is 105 more than i have. have you had any issues with rings wearing out or valve guides? have you been running synthetic oil the entire time? just curious. i dont know many ferrari motors that can go that long before a teardown, or a 911 for that matter. my 911 sc had already had its motor done when i purchased it and it only had 110k on it

[soxnail]

No engine work done.. other then maintaining, have run synthetic in it all its life. I have had the car since new 21 years .
see link below.
951 still rock solid and reliable

[nynor]

if these engines are maintained, it is amazing how well they wear. with 150K on my '83, the cylinder bores were perfect.

[myskyon]

well mine has about 206K and it has been through a lot but i have had no engine wear issues. though i did have one issue with a shop distroying my motor and putting a new one in. but i run mine pretty hard now when i drive it and i never have any problems with the motor. i run regular oil in mine 20-50 year round. and i change it useally every 2500 miles or so. but yeah just remember these cars are ment to be "driven". i think the more you baybe it the more problems you are going to have with the parts just getting old and never used and possable engine crud build up and carbon deposits and so on. i know i wont get any carbon build up with the fireballs shooting out the back.

[onehot951]

i noticed in the past when i have parked it, something breaks. it wants to be driven, and i know it sounds stupid but its like im punished when its parked for over a week. i just lost a main seal and have a serious oil leak problem now so the car was washed and put under its cover. i did start another thread hoping to get some insite as to what people thought but it hasnt really gone anywhere and im baffled as to what or where its leaking at this point. hope i get a grant or something as nothing is free