Engine Crossmember

Ooooner · 08-19-2007

I need to know what the engine cross member torque settings are where the 6 bolts screw into the body "frame" and for the engine mounts themselves. There are two other bolts that screw into the side on the cross member as well.
I also need the torque settings for the four bolts on the transmission mount.
I am finally seeing the light at the end of the tunnel as I got my engine and transmission back in today!

Thanks for any information you can pass my way!

Thanks...

BQS4 · 08-19-2007

Roy, you mean torques like "just before the bolt head snaps off?"

Ooooner · 08-19-2007

Gene,
That's about what I figured but just wanted to see if there were settings. I sure could not find anything in the factory manual on it!

BQS4 · 08-19-2007

Roy;
I just went through this with Tony's GT, but, we replaced the front suspension. We just put a good hurt on the bolts.

Ooooner · 08-19-2007

My front suspension is out right now, too. I have already rebuilt it and will be installing it back in this week. I think I saw in the book the torque setting for the front suspension to the body! I can't remember what it was right now...

namba209 · 08-20-2007

Roy, according to my Hayne's Manual for the front suspension cross member bolts, the torque is 36 foot pounds and for the engine/tranny cross member bolts, it's 30 foot pounds.

edca_opelgt · 08-20-2007

Dear Opellers,
I found an interestning website where you have an idea about torque settings that can be used when you don't have the specific data.
It is in dutch but it is quiet easy to understand.
The first colum is the sort of threat (metric), 6,9; 8.8 and 10.9 is the quality of the bolt you use.
Remark that the torque settings in the diagram are maximum settings; nominal settings are 7% less.
Hope to help you out with that,
Greetings,
Eddy
http://www.onkenhout.nl/media/docume...almomenten.pdf

Ooooner · 08-20-2007

Eddy, Ron and Gene,
Thanks for the information! That really helps me out. I guess I need to get a Haynes book now.
Again, thanks for your help...

namba209 · 08-20-2007

Roy, those torque values were for the "main" bolts not the hanger strap bolts on the engine crossmember that go into the tranny tunnel. Those are smaller and would take less torque. Although they are not specified, the general torque values for a 10mm bolt (15mm head) is 30 ft. lbs., an 8mm bolt (13mm head) is 15 ft.lbs., and a 6mm bolt (10mm head) is 30 in.lbs. HTH.

hrcollinsjr · 08-20-2007

Originally Posted by BQS4

Roy, you mean torques like "just before the bolt head snaps off?"

Gene, Roy is a school teacher I'd say he can tighten them with hand tools as tight as he wants and not worry about over torqueing them.

Harold

Ooooner · 08-20-2007

Hee Hee Hee... Harold, that one is stored in my memory bank!

BQS4 · 08-20-2007

Originally Posted by hrcollinsjr

Gene, Roy is a school teacher I'd say he can tighten them with hand tools as tight as he wants and not worry about over torqueing them.

Harold

OOOOO, that one hurt....

Ooooner · 08-20-2007

Originally Posted by BQS4

OOOOO, that one hurt....

Gene,
Like I said, that one is in my memory bank. I will get him back...

Hee Hee Hee

hrcollinsjr · 08-20-2007

Originally Posted by Ooooner

Gene,
Like I said, that one is in my memory bank. I will get him back...
Hee Hee Hee

Memory bank is probably bankrupt.

NOT! Wow, no hair on your butt just like I figured.

Who's yo Daddy?

About the light at the end of the tunnel thing, it's probably the train. I have to quit posting now as I'm sure I've used up my allotment of smilies.

Mod's, you won't hurt my feelings if you delete this series of "jests". Please give Oooner plenty of time to read this as he is a slow reader before deleting. IF he comes back with something really good you may go ahead and delete it immediately!

Harold

Gary · 08-20-2007

Originally Posted by BQS4

Roy, you mean torques like "just before the bolt head snaps off?"

The technical term is - "Half a turn before it breaks"

namba209 · 08-21-2007

Originally Posted by Gary

The technical term is - "Half a turn before it breaks"

Gary, I thought the terminology was "Smoke Tight And A Quarter Turn"

That is tighten the bolt until it starts smoking, then add a quarter turn more.

oldopelguy · 08-21-2007

Those bolts would be two stars tight, as in tighten until you see stars, but only two of them.

08-19-2007	#1 (permalink)
Ooooner Moderator Join Date: Mar 2002 Location: Concord, North Carolina Posts: 1,118 Real Name: Roy Bell	Unanswered: Engine Crossmember I need to know what the engine cross member torque settings are where the 6 bolts screw into the body "frame" and for the engine mounts themselves. There are two other bolts that screw into the side on the cross member as well. I also need the torque settings for the four bolts on the transmission mount. I am finally seeing the light at the end of the tunnel as I got my engine and transmission back in today! Thanks for any information you can pass my way! Thanks... __________________ Roy Bell 1973 Opel GT 74 Manta Rallye Concord, North Carolina Carolina Opel Club OMC

08-19-2007	#2 (permalink)
BQS4 Southern Red Neck Join Date: Mar 2002 Location: Snellville, GA Posts: 6,028 Real Name: Gene Provided Answers: 12	Roy, you mean torques like "just before the bolt head snaps off?" __________________ "Yes, I do have a rifle rack in my Sportwagon" Last edited by BQS4; 08-19-2007 at 10:24 PM.

08-19-2007	#3 (permalink)
Ooooner Moderator Join Date: Mar 2002 Location: Concord, North Carolina Posts: 1,118 Real Name: Roy Bell	Gene, That's about what I figured but just wanted to see if there were settings. I sure could not find anything in the factory manual on it! __________________ Roy Bell 1973 Opel GT 74 Manta Rallye Concord, North Carolina Carolina Opel Club OMC

08-19-2007	#4 (permalink)
BQS4 Southern Red Neck Join Date: Mar 2002 Location: Snellville, GA Posts: 6,028 Real Name: Gene Provided Answers: 12	Roy; I just went through this with Tony's GT, but, we replaced the front suspension. We just put a good hurt on the bolts. __________________ "Yes, I do have a rifle rack in my Sportwagon"

08-19-2007	#5 (permalink)
Ooooner Moderator Join Date: Mar 2002 Location: Concord, North Carolina Posts: 1,118 Real Name: Roy Bell	My front suspension is out right now, too. I have already rebuilt it and will be installing it back in this week. I think I saw in the book the torque setting for the front suspension to the body! I can't remember what it was right now... __________________ Roy Bell 1973 Opel GT 74 Manta Rallye Concord, North Carolina Carolina Opel Club OMC

08-20-2007	#6 (permalink)
namba209 6,000 Post Club Join Date: Aug 2002 Location: Imperial Beach, CA South of San Diego Posts: 6,054 Provided Answers: 6	Roy, according to my Hayne's Manual for the front suspension cross member bolts, the torque is 36 foot pounds and for the engine/tranny cross member bolts, it's 30 foot pounds. __________________ Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next

08-20-2007	#7 (permalink)
edca_opelgt Opeler Join Date: May 2003 Location: Belgium Posts: 71	general torque settings Dear Opellers, I found an interestning website where you have an idea about torque settings that can be used when you don't have the specific data. It is in dutch but it is quiet easy to understand. The first colum is the sort of threat (metric), 6,9; 8.8 and 10.9 is the quality of the bolt you use. Remark that the torque settings in the diagram are maximum settings; nominal settings are 7% less. Hope to help you out with that, Greetings, Eddy http://www.onkenhout.nl/media/docume...almomenten.pdf

08-20-2007	#8 (permalink)
Ooooner Moderator Join Date: Mar 2002 Location: Concord, North Carolina Posts: 1,118 Real Name: Roy Bell	Eddy, Ron and Gene, Thanks for the information! That really helps me out. I guess I need to get a Haynes book now. Again, thanks for your help... __________________ Roy Bell 1973 Opel GT 74 Manta Rallye Concord, North Carolina Carolina Opel Club OMC

08-20-2007	#9 (permalink)
namba209 6,000 Post Club Join Date: Aug 2002 Location: Imperial Beach, CA South of San Diego Posts: 6,054 Provided Answers: 6	Roy, those torque values were for the "main" bolts not the hanger strap bolts on the engine crossmember that go into the tranny tunnel. Those are smaller and would take less torque. Although they are not specified, the general torque values for a 10mm bolt (15mm head) is 30 ft. lbs., an 8mm bolt (13mm head) is 15 ft.lbs., and a 6mm bolt (10mm head) is 30 in.lbs. HTH. __________________ Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next

08-20-2007	#11 (permalink)
Ooooner Moderator Join Date: Mar 2002 Location: Concord, North Carolina Posts: 1,118 Real Name: Roy Bell	Hee Hee Hee... Harold, that one is stored in my memory bank! __________________ Roy Bell 1973 Opel GT 74 Manta Rallye Concord, North Carolina Carolina Opel Club OMC

08-21-2007	#17 (permalink)
oldopelguy Have Opel, Will Travel Join Date: Mar 2002 Location: Saint Michael, MN Posts: 1,727 Logbook Entries: 3 Provided Answers: 2	stars Those bolts would be two stars tight, as in tighten until you see stars, but only two of them. __________________ 1958 Rekord Sedan, 1958 Olympia Wagon, 1959 Opel Olympia Sedan, 1967 Kadett Coupe, 1967 Admiral Sedan 4L CIH-6, 1968 Kadett fastback 1.1L, 1970 Kadett Wagon Turbo 2.2L, 1971 Kadett Sedan 1.1L, 1975 Manta Wagon 4.3L V-6

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