Pullin the 7 bolt

[1fast97gsx]

I know it might be foolish but I'm going to do it anyway ... I'm planning on pulling out my 7 bolt and taking it to a machine shop and having it bored out and put in new pistons and rods. Why not swap to a 6 bolt? I have no signs of crankwalk and I want to have one of the few "built" 7 bolts although I do have a 1g head...

Is it best to drop the trans down and pull the motor up through the top? I am doing this on jackstands .. the car is about 20" off the ground so the trans will clear but I doubt the block will. Do I have to put the head back on to hook up a cherry picker to the block since the brackets for pullin the motor were attached to the head or is there another place to grab it? It can't just be pulled straight up with hte trans still connected to it can it?

Sorry I'm just trying to find the fastest and most painless way to get this thing in and out of my car since I dont have the luxury of a lift. Thanks.

 

[One_fist_Pirate]

I would say to get a cherry picker and pull it up through the top of the bay. Minus the trans and transfer case.

Drop those. It doesnt take a long time and I think it may be easier then trying to tetris the trans & block up.

 

[98TsiAWD]

Drop the transfer case, remove yoru front cv shafts and pull the motor/tranny out in one piece. It is a b*tch to pull the tranny and engine apart in the car (especially on a 2g).

I got $1k that says that 7 bolt walks within 3k miles if you remove the crank and/or rods out of it.

 

[SummerWolf]

are 7 bolts REALLY that bad? I mean I just bought a 97 awd and I'm looking for mid 12's with the 7 bolt inside.....if they're that bad though, maybe I just ought to sell it

 

[dsmturboawd]

lots of people run 7 bolts all day long with 400hp. nimble was running 453Whp on his stock 7 bolt for a long time. i dont understand this guys reasoning behind building the motor.

building a 4g63 completely defeats the entire purpose of owning one IMO. just build something cool rather than this. shit a stock 6 bolt can take 500whp no problem. do you feel you need more than that? the 7 bolt in your motor is fine, just leave it.

 

[SummerWolf]

I don't know, I can sell my car for more than I paid for it, and buy a mint ass 1st gen and gain about 2,000....... I'm weighing my options

See I paid 1500 for a 97 talon awd and it either needs a new tranny.....or a cv half shaft, and its too cold to be working on it right now, but I drove it home. I figure, even in its broken state I could get 3,000 out of it minimum....and then a guy I know is selling a nice ass 1st gen talon for 2,000

so if I sell the talon for what I want to sell it for....I'd gain some money and buy the talon and use the money gained to mod the talon

Caleb

 

[1fast97gsx]

if it walks it walks but theres always a chance it might not. As of now no signs of cw and the car has been 16g'd since it's had 5k on it. Now it's at 60k. I ran it at the track around 30 - 35 times last summer alone putting down low 13s and high 12s. That was with an act 2600 ... Like I said if it walks it walks but I'm going to risk it.

I pulled the trans and the transfer case out so I got 1 more mount holding the block. It's just a few hoses and then it'll pop right out right? I'm going to pull it through the top but I guess I'm going to put the head back on ( headstuds only ) just to get it out since I have nowhere to grab it with the cherry picker headless. Then off the the machine shop.

dsmturboawd - I am doing it because I pulled the head to do a head swap. I looked inside the cylinders because the car jerked a few times towards the end of last summer ( missfire under hard launching ) and I found the cylinder wall for number 4 was scratched leaving traces of oil passing through. The car would burn about 1 quart every 3000 miles. Honing it out won't be enough to fix it completely so that only leaves boring it. If I bore why bother with stock pistons since I'll need oversized rings anyway. Well then if I'll have new pistons why not upgrade the rods? You think it's not neccessary because I'd rather not do that either?

 

[SummerWolf]

Hmmm interesting, but yeah, if you're going to all that trouble, why not put in a first gen block, just the block, or would it not fit together right....sorry if that sounds like a total newbie question

 

[1fast97gsx]

well theres a lot of stuff involved. For instance I beleive some of the tranny bolts don't line up meaning you have to drill new holes and thread them. Then you will need to do some clearancing for the oil pump. Also on the 2g the motor mounts go 3 on the tranny ... 1 on the block. On the 1g I believe it's 3 on the block and 1 on the tranny.

I really don't "believe" in crankwalk. I think it's made out to be far worse than it really is. For instance .. how many cases of people with 7 bolts that got crankwalk have you heard of? A handful I'm sure, but how many cases of people that haven't got it have you heard from? I'd say almost none. The reason is because people only post up problems they have, not things that work. I personally have 3 friends that run 300+ whp on the stock 7 bolt. I know 1 kid ( not good friends with ) that had a 1997 gsx and it walked on him ... he was bone stock. I think crankwalk is either something you will get or won't get ... not something that is caused by mods. Like I said 60k so far and no signs so I'm not worried.

A 1g block swap can always be done later once I know EVERYTHING involved in the swap. I actually have access to a 1g 6 bolt motor with only 90k on it so I could do everything to that motor and put that in instead ... but I'm saving that for when / if this one walks. Bascially I want to see if it's possible to have a "fast" 7 bolt. Well that and I don't wanna buy another flywheel just yet either

 

[cait sith]

Originally posted by 1fast97gsx
well theres a lot of stuff involved. For instance I beleive some of the tranny bolts don't line up meaning you have to drill new holes and thread them. Then you will need to do some clearancing for the oil pump. Also on the 2g the motor mounts go 3 on the tranny ... 1 on the block. On the 1g I believe it's 3 on the block and 1 on the tranny.

You apparently don't know jack about six bolt swaps, because I didn't drill/thread anything on mine other than a minimal amount of grinding on the 2G engine mount.

You don't use the crank angle sensor which negates the need of the 2G oil pump as well.

 

[1fast97gsx]

ok then maybe I was wrong about the tranny issues ...

http://www.roadraceengineering.com/2g6boltmotorinstall.htm <- still doesnt seem to be a non drilling / tapping thing though.

 

[dsmturboawd]

just hone it and get some new rings.

 

[1fast97gsx]

yea that was the original plan, but honing it still didn't take care of it. I think I was running very lean because the tip of my cylinder 4 spark plug broke off last summer and fell inside the cylinder and I think that caused it all. Honing it made it better, but scratches are still visible and I'd rather have it fixed 100%. I might just have it bored and get oversized rings and call it a day though.

 

[98TsiAWD]

http://www.dsmtuners.com/forums/showthread.php?s=&threadid=99255

Need I say more.

 

[1fast97gsx]

ouch

Even so, thats 1 case. Maybe something wasn't aligned right or balanced right. Who knows.

98TsiAWD - thank you for that link and your concern. If it happens it happens, if not then not. I would do a 6 bolt swap ( still debating ) but I don't really like "custom fabbing " stuff like those oil passages and what not. I might have to end up doing it though, time will tell.

 

[98TsiAWD]

Originally posted by 1fast97gsx
ouch

Even so, thats 1 case. Maybe something wasn't aligned right or balanced right. Who knows.

98TsiAWD - thank you for that link and your concern. If it happens it happens, if not then not. I would do a 6 bolt swap ( still debating ) but I don't really like "custom fabbing " stuff like those oil passages and what not. I might have to end up doing it though, time will tell.

Oil passages? You are thinking of the old RRE way to do a 6 bolt swap. Check out the new magnus 1gina2g (easy, just need a couple 1g parts)

http://www.magnusmotorsports.com/1g2g.asp

 

[cait sith]

I'd say easier, but flat out easy? Not quite...

 

[1fast97gsx]

well thats it ... I pulled out the 7 bolt tonight. It was way easier than I thought. Draining the AC took the most time. I have a 6 bolt and a 7 bolt .. I think I'm going to build the 7 bolt and put that in since that is the original engine and when that engine is in then build the 6 bolt as a "back up" motor ... we'll see if I'll need it.

 

[SummerWolf]

Contact Jeff

www.rothbuilt.com/speeddesign

he has an option to help with crankwalk and they have used it on a bit of street engines, and their cars as well......contact him and see what he says, cause since you're building the 7 bolt, might as well make it as reliable as it can be

Caleb

 

[1fast97gsx]

ok thanks.

 

[ITLLFLY]

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