Trouble in Paradise, any ideas?

Starsky74

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Ok shoot me this is more 4.6 related than it is sn95. BUt i do own one so dont hate to much. ANYWAY. I had my 95vert for a little over a year. LOVED IT( some mods done previously) so when i got married, my wife decided she wanted one too but auto. So i agreed just to get rid of the malibu she had that had already been through a motor or two. We found an 03 gt convertible at a great price. Took-er home blah blah. Made a few passes at the local strip to see what-up....14.6 at 91mph ok..so lifes just PERFECT? right?? WRONG.

exactly 90 days after we purchased the pig we were headed home from the bank after dropping 3k on our loan from the sale of the malibu when.....all of a sudden! BOOOOOOOM . It took a major SHIT. Popped the hood, to find an entire coil missing with pieces everywhere and not a drop of coolant in 'er. well, come to find out, the crossover on the intake, where it bolts from underneath the intake, had split on the 1/4 inch of composite intake material and lost all the coolant, but it never ran hot? sensor is in the crossover-there was no coolant temp to sense! TRASH. So the teardown begins, found #3 combustion chamber split..(how the coil shot out) ordered two new heads, gasket kit and a pro products aluminum intake, plenum, and tb. And a full set of msd coils and new plugS and timing chains. Installed...... cranked...it was missing. BAD like i didnt change anything.

pissed of at the money i wasted, it was time to delve furthur into this whore. motor came out, found #3 piston ring lands smashed together. After much digging into my now shallow pockets i managed to find a low mile used 98 long block. my idea was to retro fit the short block, use my PI heads and make a few more horsies. well i got lazy and this project moved to the side. I bought my wife a beater to drive while i fixxed the stang- a 2nd gen SHO lol. More story too come later im hungry and headed for TEXAS-ROADHOUSE!
 
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Starsky74

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MustangChris said:
my idea:



what was the question?

theres more to the story before my question is asked, i had to go feed myself.
i know 4.6s are in sn95s, i said dont shoot because the main story revolves around a new edge car.
It did have an aluminum crossover, what it bolts to is plastic with a formed o-ring between. Which is where it blew coolant out at.

Ok back to the story...A few months went by and i decided to pick back up work on the stang. The plan was to swap the new PI heads and new intake over and have er runnin. So i pulled one head of the new junkyard mota, and there to my surprise... mud. yes mud, in every cyl. how it got there im not sure. Probably went through RITA. i am from southwest louisiana. anyway, the mud was well past the rings and my 90 day warranty with the junkyard had expired. YAY i decided for a "stock" rebuild , Tore it down bottom end was ok other than normal bearing wear. The bearings were pretty easy to find. New rings...... next to impossible. they were 80 bucks for a set of 2 cylinders worth.. yeah 320 bucks!!! well, fast-forward a little while and i had-er rebuilt ready to put back in.

WEEEEELLLL my buddie, who was like my brother, that was helping me....well....we had a misunderstanding between us. ok, between our wives and next thing i know my best friend packed up his tools and his project car that we were building at my house, and hauled ass.

ok back to real story, so i put the new motor in and get it all buttoned up and topped of the fluids. cranked er up.....VROOOM! She sounded great!! let her run to make sure everything was working properly. then after approx 5 min...pING PING POW!!!!!!!!!!!! Something broke, she started missing again. and it was obviously mechanical, pulled pass cam cover off and found a follower popped of! ive seen that before on high miled 4.6s so i reinstalled it thinking the lash adjuster hadnt had enough pressure. cranked again with the cam cover off.. maybe 10 seconds went by when the same follower popped out. NOW IM PISSED OFF! then it got even better! i looked at the valve spring on the lost follower and it was slightly compressed like the valve was bent.

more story, and "the question" to come! i have to go to bed!
 

duff daddy

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that sucks, cant wait to see what the question is and how the rest of the story... is it done yet or is this unfolding as we speak???
 
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Starsky74

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OK, so at this point i was ready to set-er on fire and call my insurance agent. I was ticked bad. So i let a buddie at his shop pull that head off. well it stay there for a while with them not touching it.

sorry guys, ill finish the story when i get home. i was just paged to get a waiter
 
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Starsky74

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sorry dudes. ok back to business. I finally got a call from the shop... normally i would never ever let another shop put there hands on anything that i drive but.. i turn wrenches all day and this car has just pisssssssed me off....guy on the phone says," found your problem!" "what" i asked...... long pause.... well.....he asked," did you recently piss someone off?" i said. yup why? he said," think they couldve thrown a bolt in your motor when you built it? hahaha NOT COOL

well ive built probably 50 or more motors in my damn life and never ever had this happen. so i asked him what it looked like, he said like and old head bolt from a 302 or something, like big enough theres no way i couldve missed it. he said it nicked the valve seat and bent the valve and notched the piston for me.. lol so we had the head machined and replaced the valve and piston.

he calls me again a week later...umm dude.. are you sure you built this motor correctly? yes damnit why? he said well.. it has a ton of crankcase pressure and its smoking like a mosquito truck. what now?????? more story to come. what do yall think it was, and dont worry about my skills bc that AINT DA PROB.
 

glittle75

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not trying to be a dick, but it sounds like you fail at engine bulding, or yuo have extremely bad luck at life.
 
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Starsky74

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glittle75 said:
not trying to be a dick, but it sounds like you fail at engine bulding, or yuo have extremely bad luck at life.
i said my skills were not the problem here. i do this professionally and EVERYTHING was triple checked and in perfect tolerances. i just have had bad luck with 4.6 sohc's
 

MustangChris

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well, where did you put your pushrods... they go between the lifter and the header gasket..... its tough to do sometimes, you may have to custom bend your pushrods... thats why they all comes stright... so you can bend them to exactly what you want...




:p
 

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