bad hesitation on my new mkII

SolidStateS15 · 09-18-2006, 09:49 PM

i think i found the problem. the timing is really bad, umm the crank pully bolt wasn't even tight at all so it's been spinning on it's own and throwing off the timing. so now i just need to strip it all down and set it right. just sux on this thing because there is too much crap in the way so u have to remove it all. gonna take longer to remove all the belts and fan then to set the timing itself

. i just hope there are no bent valves, is this an interference engine? that could also explain the loud tapping when the engine did run, i though it was just the HLA's but it could be valves.

midwestmk2 · 09-18-2006, 11:25 PM

I dont know for sure or not if it is a interference engine or not but i dont think so..If the crank pulley is turning then your going to need a new crank keyway..Hoprfully the keyway slot isnt to hurt or youll be getting yourself a new crank..You can weld them in but it isnt recomended..

SolidStateS15 · 09-19-2006, 12:48 AM

Quote:

Originally Posted by midwestmk2

I dont know for sure or not if it is a interference engine or not but i dont think so..If the crank pulley is turning then your going to need a new crank keyway..Hoprfully the keyway slot isnt to hurt or youll be getting yourself a new crank..You can weld them in but it isnt recomended..

i sure hope not or this engine is toast. if the crank is stripped then i'm done i guess till the swap. i just hope that it's fine and just needs to be tightened or possibly a key.

midwestmk2 · 09-19-2006, 01:16 AM

Keep me posted on your progress if any..

supra1985turbo · 09-22-2006, 05:56 PM

The 5m engine is not an interferance engine. I have a 85 5m and when I first rebuilt the engine I did not want to be going down the 1/4 mile strip and the cam belt brake and mess up the engine. So when I was to that point of lining every thing up I just stuck the belt on and hand turned the engine over about 20 times never hit a valve.

SolidStateS15 · 09-23-2006, 12:33 AM

thanks for the info. i actually got it running today which was great. i just had to keep messing with the timing because it would not hold it. i would set it and spin a few times and it would be off again?? not sure what the deal was but it took about 4 times before it would stay together. i got it all back together and took it out for a test run and it was perfect. first time i have actually gotten to drive in it so it felt good.

supra1985turbo · 09-26-2006, 10:59 AM

Good luck!!!!!!!!!

09-18-2006, 09:49 PM	#1
SolidStateS15 Stock Join Date: Sep 2006 Location: SE Maryland Posts: 16	i think i found the problem. the timing is really bad, umm the crank pully bolt wasn't even tight at all so it's been spinning on it's own and throwing off the timing. so now i just need to strip it all down and set it right. just sux on this thing because there is too much crap in the way so u have to remove it all. gonna take longer to remove all the belts and fan then to set the timing itself . i just hope there are no bent valves, is this an interference engine? that could also explain the loud tapping when the engine did run, i though it was just the HLA's but it could be valves. Last edited by SolidStateS15; 09-18-2006 at 10:48 PM.

09-18-2006, 11:25 PM	#2
midwestmk2 3" Exhaust Join Date: May 2005 Location: STL ,MO. Posts: 206	I dont know for sure or not if it is a interference engine or not but i dont think so..If the crank pulley is turning then your going to need a new crank keyway..Hoprfully the keyway slot isnt to hurt or youll be getting yourself a new crank..You can weld them in but it isnt recomended.. __________________ 83 p-type,5spd,4;10 gears,New 86 cressida 5MGE 195hp,HKS metal head gasket,Cressida injectors,d-port intake runners,No EGR,No cat,Tweaked MAF,Custom cold air intake,Custom rear strut bar,Perfection clutch,Custom 3inch exhaust,4inch bazooka muffler,,Only 2700lbs,, COME AND GET IT!IF YOU DARE!! Please no Honduuuuhhhs!!! http://www.cardomain.com/ride/858848/2

09-19-2006, 01:16 AM	#4
midwestmk2 3" Exhaust Join Date: May 2005 Location: STL ,MO. Posts: 206	Keep me posted on your progress if any.. __________________ 83 p-type,5spd,4;10 gears,New 86 cressida 5MGE 195hp,HKS metal head gasket,Cressida injectors,d-port intake runners,No EGR,No cat,Tweaked MAF,Custom cold air intake,Custom rear strut bar,Perfection clutch,Custom 3inch exhaust,4inch bazooka muffler,,Only 2700lbs,, COME AND GET IT!IF YOU DARE!! Please no Honduuuuhhhs!!! http://www.cardomain.com/ride/858848/2

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09-22-2006, 05:56 PM	#5
supra1985turbo 3" Exhaust Join Date: Sep 2006 Location: Kingwood, TX Posts: 63	The 5m engine is not an interferance engine. I have a 85 5m and when I first rebuilt the engine I did not want to be going down the 1/4 mile strip and the cam belt brake and mess up the engine. So when I was to that point of lining every thing up I just stuck the belt on and hand turned the engine over about 20 times never hit a valve.

09-23-2006, 12:33 AM	#6
SolidStateS15 Stock Join Date: Sep 2006 Location: SE Maryland Posts: 16	thanks for the info. i actually got it running today which was great. i just had to keep messing with the timing because it would not hold it. i would set it and spin a few times and it would be off again?? not sure what the deal was but it took about 4 times before it would stay together. i got it all back together and took it out for a test run and it was perfect. first time i have actually gotten to drive in it so it felt good.

09-26-2006, 10:59 AM	#7
supra1985turbo 3" Exhaust Join Date: Sep 2006 Location: Kingwood, TX Posts: 63	Good luck!!!!!!!!!