I am ready to drive down to @#$% your sister,Alabama or wherever the hell Comp Cams is located and kick some red-neck ass!!!! This cam swap has been nothing but hell since the day it got started! What should have been an 8-hour job has turned into a multi-week ordeal that I wouldn't wish upon my worst enemy!!!Here's the story
FRIDAY APR.8TH-DAY 1)Drop the car off at the mechanics with the cams and valvesprings. Expect to pick the car up sunday or monday night.
DAY 2) Get call from mechanic,new cams use bolt on cam gears,mine are press on. Old gears can't be put on new cams for various size and fitment issues
DAY 4) Order new cam gears,spacers,bolts and washers from FORD
DAY 6) Pick up parts from FORD and leave 130 bucks with them(no mention has been made from Comp on requiring these parts anywhere in their literature,also install instructions included with cams are for a small block chevy,but no matter,mechanic knows his stuff)
DAY 7) Call to check on car,valvesprings are major headache to replace,especially with head on motor,progress is slow but continuing
DAY 9) Engine done! It runs! go to pick car up,passenger side head is making all kinds of LOUD weird mechanical noises,car stays at mechanics so he can check it out.He was unsure of how much noise the aftermarket cams would make
DAY 10) Nothing found to be wrong,all parts line up,mesh together properly,run true. Do some heavy research and find that ALOT of people are having issues with the COMP XE270's that I have. Anger begins to set in.
TODAY DAY 11)Run bore scope down spark plug hole,discover piston to valve contact,my nice forged pistons have small divots in them. The cams I have are unusable in my application.Much anger sets in.
Apparently,Comp grinds 5 degress of advance into the XE270's to make them more "drivable". When this is combined with the FORD cam gears that have an "acceptable" tolerance of UP TO 6 DEGREES of ADVANCE
and put it together in an engine with interference fit(parts much be timed properly to not hit each other) you get about 75% of owners with these cams having the same problem I am. Comp is aware of the issue but continues to make the product,without changes,and without warnings. I called Comp today and the person I spoke to made no mention of the possiblity of P2V problems. He suggested it was a cam with too small of a base circle causing excessive follower slap(he admitted that some got through the system about a year ago). So now I"m not sure what to do. Luckily we didn't run the engine long enough to bend the valves so hopefully I'll be able to just replace the cam with a different model and go. I'm so disgusted with this whole process,I just want to drive my car. I've got stuff to finish working on once I get the car home. It feels like it's been summer for months and I haven't put on a mile yet.
FRIDAY APR.8TH-DAY 1)Drop the car off at the mechanics with the cams and valvesprings. Expect to pick the car up sunday or monday night.
DAY 2) Get call from mechanic,new cams use bolt on cam gears,mine are press on. Old gears can't be put on new cams for various size and fitment issues
DAY 4) Order new cam gears,spacers,bolts and washers from FORD
DAY 6) Pick up parts from FORD and leave 130 bucks with them(no mention has been made from Comp on requiring these parts anywhere in their literature,also install instructions included with cams are for a small block chevy,but no matter,mechanic knows his stuff)
DAY 7) Call to check on car,valvesprings are major headache to replace,especially with head on motor,progress is slow but continuing
DAY 9) Engine done! It runs! go to pick car up,passenger side head is making all kinds of LOUD weird mechanical noises,car stays at mechanics so he can check it out.He was unsure of how much noise the aftermarket cams would make
DAY 10) Nothing found to be wrong,all parts line up,mesh together properly,run true. Do some heavy research and find that ALOT of people are having issues with the COMP XE270's that I have. Anger begins to set in.
TODAY DAY 11)Run bore scope down spark plug hole,discover piston to valve contact,my nice forged pistons have small divots in them. The cams I have are unusable in my application.Much anger sets in.
Apparently,Comp grinds 5 degress of advance into the XE270's to make them more "drivable". When this is combined with the FORD cam gears that have an "acceptable" tolerance of UP TO 6 DEGREES of ADVANCE
and put it together in an engine with interference fit(parts much be timed properly to not hit each other) you get about 75% of owners with these cams having the same problem I am. Comp is aware of the issue but continues to make the product,without changes,and without warnings. I called Comp today and the person I spoke to made no mention of the possiblity of P2V problems. He suggested it was a cam with too small of a base circle causing excessive follower slap(he admitted that some got through the system about a year ago). So now I"m not sure what to do. Luckily we didn't run the engine long enough to bend the valves so hopefully I'll be able to just replace the cam with a different model and go. I'm so disgusted with this whole process,I just want to drive my car. I've got stuff to finish working on once I get the car home. It feels like it's been summer for months and I haven't put on a mile yet.
cause i have same cam's and did install myself and they seem to be working fine... sorry to hear about your troubles... did your mechanic degree the cams? and if you do compression test one both side are they both the same ? just to make sure its timed right ...
