motor knocks so hard but doesn't use any oil *now with Video*
03-10-2007, 04:21 AM
#1
6th Gear Member
Thread Starter
Join Date: Feb 2005
Location: KY
Posts: 13,396
motor knocks so hard but doesn't use any oil *now with Video*
mods please don't move it this is the only section i really post in so i was hoping i could get some help.
to start off this is about my beater its a 96 grand prix with with the 3.1 or something in it. anyways the motor knocks so hard you can hear probably a good 15ft away but i have been checking the oil frequently and it doesn't you a drop of oil. any suggestions i know it needs a rebuild more than likely but anything to prolong the inevitable?
to start off this is about my beater its a 96 grand prix with with the 3.1 or something in it. anyways the motor knocks so hard you can hear probably a good 15ft away but i have been checking the oil frequently and it doesn't you a drop of oil. any suggestions i know it needs a rebuild more than likely but anything to prolong the inevitable?
03-10-2007, 04:30 AM
#2
5th Gear Member
Join Date: Oct 2005
Location: michigan, living in O Hi Hoe
Posts: 2,809
RE: motor knocks so hard but doesn't use any oil
man 3.1 chevy motors are ****, they all knock, it's prolly realy bad piston to valve slap (haven't heard it first hand obviously) or something dumb i know my Ex's sisters grand am 3.1 made a knock sound since it had 50k on it and when she told me about it it was a tid bit over 100k for some reason they make noise but don't die....
when it dies don't drop another 3.1 in it... get a 3.8 L76 motor or the L67 with the L76 top end (heads and M90) i'm pretty sure it's a basic swap nothing to crazy IIRC it's just a drop in... there are like 5 guys around here that have 96 and older GP's with the 3.8 swap
when it dies don't drop another 3.1 in it... get a 3.8 L76 motor or the L67 with the L76 top end (heads and M90) i'm pretty sure it's a basic swap nothing to crazy IIRC it's just a drop in... there are like 5 guys around here that have 96 and older GP's with the 3.8 swap
03-10-2007, 04:56 AM
#5
5th Gear Member
Join Date: Oct 2005
Location: michigan, living in O Hi Hoe
Posts: 2,809
RE: motor knocks so hard but doesn't use any oil
yea get the 97+ GTP motor or the GT motor and swap the top ends the gt motor has more compression (because of it being N/A) so when u swap te tops it gets a good amount of HP... and yea they clear not by a ton but they do.... there are a lot of guys here that have the 96 and older body that me and my roomate have helped swapt them in...
check out these guys' cars, good friends of me and my roomate
http://www.clubgp.com/newforum/showp...sp?memId=20221
http://www.clubgp.com/newforum/showP...sp?memid=32280
BTW the gtp motor is the L67 and the gt motor it the L36
there isn't a L76 i was getting some numbers mixed up
and just for ****s and giggles heres a link to my roomates "extremly slow 99GT"
http://www.clubgp.com/newforum/showp...sp?memId=20991o yea and that 12.6 time is b4 the head work and smaller pully car is "kinda" fun to drive
check out these guys' cars, good friends of me and my roomate
http://www.clubgp.com/newforum/showp...sp?memId=20221
http://www.clubgp.com/newforum/showP...sp?memid=32280
BTW the gtp motor is the L67 and the gt motor it the L36
there isn't a L76 i was getting some numbers mixed up
and just for ****s and giggles heres a link to my roomates "extremly slow 99GT"
http://www.clubgp.com/newforum/showp...sp?memId=20991o yea and that 12.6 time is b4 the head work and smaller pully car is "kinda" fun to drive
03-10-2007, 04:56 AM
#6
2nd Gear Member
Join Date: Dec 2006
Location:
Posts: 450
RE: motor knocks so hard but doesn't use any oil
my truck did this before i had the motor rebuilt, it didnt burn any oil, maintained correct pressure but there was a wicked knock....like a 40 year old log truck or something not to mention the metal on metal sound.
03-10-2007, 04:57 AM
#7
5th Gear Member
Join Date: Oct 2005
Location: michigan, living in O Hi Hoe
Posts: 2,809
RE: motor knocks so hard but doesn't use any oil
go for it, i need a good laugh
ORIGINAL: Jasperstang308
also this motor has 165,2xx miles on it. if you want a i can record it when i start it up so you can hear how bad it is.
also this motor has 165,2xx miles on it. if you want a i can record it when i start it up so you can hear how bad it is.
03-10-2007, 05:11 AM
#10
5th Gear Member
Join Date: Oct 2005
Location: michigan, living in O Hi Hoe
Posts: 2,809
RE: motor knocks so hard but doesn't use any oil
u would have to the the hole pcm so you just get the motor psm and wiring harness, so technicalu u would have to rewire it, but u wouldn't have to plan out any wiring or cut anything just swap the hole harness