CRACKED TH350 Bellhousing!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jess66chevy · 08-28-2009, 12:17 AM

What do I do now? I was putting on the th350 and the bellhousing cracked! What do I do now? Is it still good?

**Captainfab** · 08-28-2009, 12:32 AM

Well it looks like you'll have to pull it back out and have someont weld it up for you. You apparently have something that isn't right......are you positive the torque converter is in all the way?

jess66chevy · 08-28-2009, 12:35 AM

Can it be welded without ruining the seals? I think I tried to bolt it on at an angle,

**Captainfab** · 08-28-2009, 12:40 AM

As long as the person welding it knows what they're doing.

Quote:

Originally Posted by jess66chevy

Can it be welded without ruining the seals? I think I tried to bolt it on at an angle,

sixfour4x4 · 08-28-2009, 12:49 AM

ouch....that metal is a bear to weld, but it shouldn't get your seals too hot as that metal will weld low. the issue i'd be concerned with, as far as your seals go, is that the imput shaft was most likely pushed in when you bolted the bellhousing up (due to improper tc installation), but i wish you luck in that area, and hope you can get someone to fix up that crack.

MacAttack · 08-28-2009, 11:00 AM

Did the identical thing - reference my thread: 283 rebuild begins.

My welder made it look like a piece of cake - but he did take his time prepping the aluminum and apparently knew what the hell he was doing. Took the repaired unit back to my tranny guy to pull the pump and make sure everything was okay. $100 at each shop for my foolishness (they didn't want that much, but I always take care of my vendors).

Mac.

Eagar1 · 08-28-2009, 12:10 PM

You can probably get a core housing pretty cheap, and just swap all of the internals. Its alot cheaper than welding, its not so hard to do, just repace a few gaskets.

jess66chevy · 08-29-2009, 09:03 PM

So I took the trans out today and it looks like it cracked because i tried to bolt it on cock-eyed. Well I didnt bolt it in all the way so nothing appears to be damaged. When I heard it crack I just gave up for that day. Do I need to jack up the motor and jack up the transmission to it so it bolts up correctly and at a proper angle?

**ChiefRocka** · 08-29-2009, 09:54 PM

Usually, using a floor jack supporting the tranny you can get the dowels to line up. Push it up tight...then...start the bolts.

ruffrida2005 · 08-30-2009, 05:50 PM

I cracked one of the mounting ears off my T5 in my s10, I had it welded up for $30 and have not had a problem with it since. Been since june it happend! Since the weld wont have to be ground down make sure they leave the weld on the inside and outside, as long as it doesn't hit the TC your good to go!
the welder used 4043 on a Tig, beveled the edges. It was Cast Aluminum also.

shortbed70 · 08-30-2009, 11:15 PM

As long as the cracks arent within 2 inches of the pump you'll be fine with welding.

08-28-2009, 12:17 AM	#1
jess66chevy Registered User Join Date: Jul 2009 Location: glendale, az Posts: 192	CRACKED TH350 Bellhousing!!! What do I do now? I was putting on the th350 and the bellhousing cracked! What do I do now? Is it still good? Attached Images

08-28-2009, 12:32 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: CRACKED TH350 Bellhousing!!! Well it looks like you'll have to pull it back out and have someont weld it up for you. You apparently have something that isn't right......are you positive the torque converter is in all the way? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-28-2009, 12:35 AM	#3
jess66chevy Registered User Join Date: Jul 2009 Location: glendale, az Posts: 192	Re: CRACKED TH350 Bellhousing!!! Can it be welded without ruining the seals? I think I tried to bolt it on at an angle,

08-28-2009, 12:49 AM	#5
sixfour4x4 Registered User Join Date: Jan 2009 Location: Reno, NV Posts: 92	Re: CRACKED TH350 Bellhousing!!! ouch....that metal is a bear to weld, but it shouldn't get your seals too hot as that metal will weld low. the issue i'd be concerned with, as far as your seals go, is that the imput shaft was most likely pushed in when you bolted the bellhousing up (due to improper tc installation), but i wish you luck in that area, and hope you can get someone to fix up that crack. __________________ '64 4x4 Stepside 350/sm420, going L92 in the near future '05 GTO that gets more attention than my truck '69 Jeepster Commando that needs more attention than my truck '71 wagoneer that gets less mpg than the gto

08-28-2009, 11:00 AM	#6
MacAttack 283 Drama Queen Join Date: Dec 2004 Location: Surf City, CA Posts: 2,435	Re: CRACKED TH350 Bellhousing!!! Did the identical thing - reference my thread: 283 rebuild begins. My welder made it look like a piece of cake - but he did take his time prepping the aluminum and apparently knew what the hell he was doing. Took the repaired unit back to my tranny guy to pull the pump and make sure everything was okay. $100 at each shop for my foolishness (they didn't want that much, but I always take care of my vendors). Mac. __________________ For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise.

08-28-2009, 12:10 PM	#7
Eagar1 Registered User Join Date: Sep 2006 Location: Las Vegas, NV Posts: 169	Re: CRACKED TH350 Bellhousing!!! You can probably get a core housing pretty cheap, and just swap all of the internals. Its alot cheaper than welding, its not so hard to do, just repace a few gaskets.

08-29-2009, 09:03 PM	#8
jess66chevy Registered User Join Date: Jul 2009 Location: glendale, az Posts: 192	Re: CRACKED TH350 Bellhousing!!! So I took the trans out today and it looks like it cracked because i tried to bolt it on cock-eyed. Well I didnt bolt it in all the way so nothing appears to be damaged. When I heard it crack I just gave up for that day. Do I need to jack up the motor and jack up the transmission to it so it bolts up correctly and at a proper angle?

08-29-2009, 09:54 PM	#9
ChiefRocka Hollister, CA. Join Date: Sep 2006 Location: Hollister, Ca. Posts: 6,150	Re: CRACKED TH350 Bellhousing!!! Usually, using a floor jack supporting the tranny you can get the dowels to line up. Push it up tight...then...start the bolts. __________________ John What the Heck is that ?? CURRENT BUILDS: 62 BurbMaster Other Builds: My '63 C-10,LWB,CC,BBW '06 HD StrAight Axle Swap Father/Son '67 C-20, LQ9,4L80,Bagged,8-Lugger !!Good Friend Richard's Build AMERICAN CUSTOMS & CLASSICS (831) 630-1965 www.ACCHOLLISTER.com ACC on FACEBOOK "Rest in Peace, Mom & Dad ... I will see you again someday!"

08-30-2009, 05:50 PM	#10
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: CRACKED TH350 Bellhousing!!! I cracked one of the mounting ears off my T5 in my s10, I had it welded up for $30 and have not had a problem with it since. Been since june it happend! Since the weld wont have to be ground down make sure they leave the weld on the inside and outside, as long as it doesn't hit the TC your good to go! the welder used 4043 on a Tig, beveled the edges. It was Cast Aluminum also. __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759 Last edited by ruffrida2005; 08-30-2009 at 05:51 PM.

08-30-2009, 11:15 PM	#11
shortbed70 Registered User Join Date: Mar 2002 Location: Forney TX Posts: 4,512	Re: CRACKED TH350 Bellhousing!!! As long as the cracks arent within 2 inches of the pump you'll be fine with welding. __________________ Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274



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