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Jul 21st, 2025 | | | | Joined: Jan 2005 Posts: 75 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 75 | With a new two groove damper installed and following instructions to install a speedi sleeve, I developed a leak within 700 miles. New speedi sleeve was scored. Seal was also new. Does the seal need to be increased in size to allow for the sleeve? | | | | | Joined: Apr 2005 Posts: 396 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 396 | I do not think so. But the timing gear cover bolts have to be somewhat loose so the timing gear hole centers itself on the speedi sleeve. Then tighten the cover bolts. I Hope you drilled and tapped the 2 botton bolt holes as per a Stovebolt Tech Tip. Make any sense? Good Luck, Jerry
Jerry
| | | | | Joined: Sep 2011 Posts: 1,363 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,363 | If there is a deep groove in the damper, clean it well, fill groove with J.B. weld, Loc -weld, etc & sand smooth before installing next sleeve.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | " New speedi sleeve was scored. "?
Is that before you installed it, or after you installed it and ran the engine?
What is the brand and part number of the repair sleeve that you used? I used one yesterday on a 270 GMC engine. There was no need to be concerned about the groove in the balancer because the sleeve covered the surface from the back to the pulley (I'll post the brand and part number tomorrow). The sleeve came with the seal and it was the same size as a regular seal.
| | | | | Joined: Jan 2005 Posts: 75 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 75 | The balancer is a 292 machined to fit a 235. The man who made it recommended I start with a speedi sleeve right away. The cover was not removed so I thought it would still be centered and the old balancer was perfect when I removed It.The bottom bolts were tapped when the engine was rebuilt 3 years ago.
It appears to me that the sleeve is not hard enough. I don't know the brand. | | |
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