Riv Performance
Would you like to react to this message? Create an account in a few clicks or log in to continue.

The 8th Gen Riviera Resource
 
HomeDashboardLatest imagesSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksLog in

 

 Backwards bolt?

Go down 
+2
AA
nebstewart07
6 posters
AuthorMessage
nebstewart07
Fanatic
nebstewart07


Name : Ben Stewart
Age : 34
Location : Schofiel Barracks, HI
Joined : 2010-12-12
Post Count : 390
Merit : 6

Backwards bolt? Empty
PostSubject: Backwards bolt?   Backwards bolt? EmptyThu Jan 06, 2011 4:29 am

Where is the backwards bolt i keep hearing about when removing the motor?
Back to top Go down
AA
Administrator
AA


Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptyThu Jan 06, 2011 10:22 am

Only ones I can think of are the screws that hold on the idler & tensioner pulleys.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
Back to top Go down
http://www.cardomain.com/ride/657082/4
deekster_caddy
Master



Name : Derek
Age : 52
Location : Reading, MA
Joined : 2007-01-31
Post Count : 7717
Merit : 109

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptySun Jan 09, 2011 10:05 am

The "Backwards Bolt" or "Bastard Bolt" as it's also known, is really not such a big deal. One of the bellhousing bolts faces the other way, threaded into the transmission through a hole in the block instead of the other way round. It's down by the long part of the transmission, the opposite side from the starter. It can easily be reached with the passenger side wheel and inner fender liner removed (which you should have off if you are pulling the motor anyhow). A couple of long extensions and an 18mm socket and out it comes. If you don't know it's there, it can be puzzling to figure out why the engine isn't freeing up. If you know it's there, it's not a big deal.

You can reach it from the top with a box wrench, but it's a little tough to break free. I recommend a bunch of extensions and a breaker bar from the pass. side wheel opening.
Back to top Go down
nebstewart07
Fanatic
nebstewart07


Name : Ben Stewart
Age : 34
Location : Schofiel Barracks, HI
Joined : 2010-12-12
Post Count : 390
Merit : 6

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptySun Jan 09, 2011 3:44 pm

deekster_caddy wrote:
The "Backwards Bolt" or "Bastard Bolt" as it's also known, is really not such a big deal. One of the bellhousing bolts faces the other way, threaded into the transmission through a hole in the block instead of the other way round. It's down by the long part of the transmission, the opposite side from the starter. It can easily be reached with the passenger side wheel and inner fender liner removed (which you should have off if you are pulling the motor anyhow). A couple of long extensions and an 18mm socket and out it comes. If you don't know it's there, it can be puzzling to figure out why the engine isn't freeing up. If you know it's there, it's not a big deal.

You can reach it from the top with a box wrench, but it's a little tough to break free. I recommend a bunch of extensions and a breaker bar from the pass. side wheel opening.

Well thank you wish I would have known this 3 months ago. Me and my dad spent 2 days in a junkyard trying to pull out a motor and then couldnt get it seperated from the transmisson. We spent like 4 hours trying to find a bolt me may have missed and then gave up. Dammit could have had a pretty damn good supercharged motor and would have been driving a fully maroon car instead of a half one. lol wow. Thanj youv though
Back to top Go down
T Riley
Guru
T Riley


Name : Travis
Age : 34
Location : Minnesconsin
Joined : 2007-02-08
Post Count : 5127
Merit : 10

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptySun Jan 09, 2011 11:32 pm

AA wrote:
Only ones I can think of are the screws that hold on the idler & tensioner pulleys.

lol wut?
Back to top Go down
http://www.rivperformance.com
albertj
Master
albertj


Name :
Location : Finger Lakes of New York State
Joined : 2007-05-31
Post Count : 8685
Merit : 181

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptySun Jan 09, 2011 11:34 pm

98riviera98 wrote:
AA wrote:
Only ones I can think of are the screws that hold on the idler & tensioner pulleys.

lol wut?

The mounting bolts for the idler and tensioner pullies on the L67 engine are reverse threaded. This is so that the normal turning direction of the pulley would tend to tighten the pulley mounting bolt.

Albertj
Back to top Go down
T Riley
Guru
T Riley


Name : Travis
Age : 34
Location : Minnesconsin
Joined : 2007-02-08
Post Count : 5127
Merit : 10

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptySun Jan 09, 2011 11:41 pm

albertj wrote:
98riviera98 wrote:
AA wrote:
Only ones I can think of are the screws that hold on the idler & tensioner pulleys.

lol wut?

The mounting bolts for the idler and tensioner pullies on the L67 engine are reverse threaded. This is so that the normal turning direction of the pulley would tend to tighten the pulley mounting bolt.

Albertj

I've never removed any pulleys before pulling a motor.. lol
Back to top Go down
http://www.rivperformance.com
AA
Administrator
AA


Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptyMon Jan 10, 2011 12:10 am

^^^ good thing - you might've twisted'em off lol

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
Back to top Go down
http://www.cardomain.com/ride/657082/4
Jamax
Enthusiast



Name : Jim Fleck
Location : Crystal River, FL
Joined : 2010-06-24
Post Count : 143
Merit : 8

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptyMon Jan 10, 2011 9:57 pm

This isn't terribly important, unless you're looking for a new bolt. They're called left-hand thread bolts. Kind of rare, but you run across them occasionally. In the '50s Chrysler used them for wheel lugs on the driver's side--same principle but opposite reason to what Albert said. They seemed to think that RH lugs could cause those wheels to come loose.
Maybe Chrysler still uses them. I don't know.
Back to top Go down
T Riley
Guru
T Riley


Name : Travis
Age : 34
Location : Minnesconsin
Joined : 2007-02-08
Post Count : 5127
Merit : 10

Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? EmptyMon Jan 10, 2011 11:08 pm

AA wrote:
^^^ good thing - you might've twisted'em off lol

This is truu my dude.
Back to top Go down
http://www.rivperformance.com
Sponsored content





Backwards bolt? Empty
PostSubject: Re: Backwards bolt?   Backwards bolt? Empty

Back to top Go down
 
Backwards bolt?
Back to top 
Page 1 of 1
 Similar topics
-
» BOLT messed up REALLY BAD
» cam and crank bolt
» Supercharger pulley bolt?
» Write-Up: Replacing Supercharger Belt Tensioner
» Darn it! Lost one EGR valve bolt

Permissions in this forum:You cannot reply to topics in this forum
Riv Performance ::   Supercharged 3800 Tech :: Series II Engine & Transmission-
Jump to: