Thread: motor alighnment ..crap
08-24-2011, 09:57 AM #1
motor alighnment ..crap
something to think about ..i had to swapp hulls..set the engine in ..on the mounts..put the alignment tool in straightened it out..bolted it down ..
i built my turbo set up in the other hull..when putting it in the new hull the exhaust was really tight and didnt want to line up right.....when i went to put the driveshaft in it wouldnt go in all the way ..or so i thought it was a new ont for the pump extension that was the first though it was to long.but no one else had issues..and ted knows what he is doing.....upon a closer inspection ..the engine mounts were all slid all the way back...moving the motor 3/8 to the rear making the driveshaft appear to bea little long..
so i need to un bolt it move it forward..and realign.. never considered front to rear.. the alignment tool doesnt account for that.. so now that i have all the brackets ect made..and put on the new hull how many of them am i going to have to adjust... crap..
08-24-2011, 04:59 PM #2
I hate those moments when you realize how many parts just got effected when you did not account for a certain variable.
Live and learn, its the way when building cars, bikes, skis, ect. and especially when you custom fab things. Lots of "god dammit" moments.
08-24-2011, 05:07 PM #3
Having a little movement (fore/aft) of the prop shaft is VERY important......The thrust bearing in the motor will fail and u can not save the engine block on the re-build. You can heat and spin that bearing in as little as 1 tank or less of fuel. I did this several years ago, and have seen it 4 times since.
It's always the pump bearing or shaft pre-load that causes this. I think it was back in 07 I posted a thread "How common is thrust bearing failure".....and this is the main cause.
08-24-2011, 05:14 PM #4
good news is i didnt run it ...so hopefully it didint cause any issues..awaiting jason to get back fro miami picking up a new turbo ..so i can get the alignment tool again and ill move it..really not a big issue just gotta remove a bunch of stuff to get it moved..
just went out and lossend the mounts it slid right forward...
custom is fun right????
got major issues with the porsch gt1 replica i am building spent all day getting the front suspension sub frame squared up and at the correct height ....it is 996 supension to a 993 tub..the track is to narrow..buy 20 centimeters..and has 6 degress of camber..and no shock travel where it is supposed to sit in the car...customer is comming up tomarrow..so i may have some ski time in the morning
08-24-2011, 06:35 PM #5
this is what am working on in the shop so it has been a headach day..try again tomarrow...
rear was easy it will get catilever shocks mounted horizontal across the top
front is fubar..been dong this for 15 years not sure how i am going to make this work...
7 degress if camber isnt to much??is it..LOL
this is a chassis i built for a cobra kit car for backdraft.fresh from the powder coater..look great
08-24-2011, 09:30 PM #6
pretty cool...wish I had time and money or just the knowledge in those areas to work on projects like yours
08-25-2011, 03:27 AM #7
not mine it is a customers..but cool prodject never the less.. i get all the stuff that isnt supposed to work ...and am supposed to wave the magic wand and make it happen..
08-25-2011, 05:59 AM #8
08-25-2011, 07:14 AM #9
Breon simple on the front end just toe and go it tell him the inner tire wear is cool and will help it turn better
08-25-2011, 07:30 AM #10
The gt1 needs it's own thread.
Got any photos of the cobra with it's clothes on?
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