Denlors Auto Blog
The most common problem we help people deal with is related to parts store thread repair kits that have failed. Once this happens the owner or shop sometimes tries unsuccessfully to re-install another of the same type inserts. When a parts store insert fails it makes the hole bigger, which prevents the same size insert from being able to help matters. Other times, some shops will say (mistakenly) that the cylinder head has to be replaced! If you have a similar situation, we can most likely recommend to you or your repair shop a professional, permanent type repair that will save the head and save a lot of money. No time to read? Call us at 800-524-9783 x251.
The inserts are held in by the bottom being expanded when the install driver is used. This creates a solid repair and is GM’s only authorized thread repair. GM does not recommend stud type repairs in place of the TTY (Torque to Yield) bolts. Ten inserts are used per side so if doing an entire block be sure to order 20. Some GM dealers prefer to order these in bulk at an even greater savings. See our bulk pricing on the Kent Moore J-42385-507 100-Pack.
Hope you’ve had a great summer so far. Quick update for you. I took on the project to install sleeves on all the spark plugs on my V-10 F-250. I had originally installed two sleeves (of lesser quality) and found out that the previous owners had also done another one (of lesser quality also). In all, three spark plugs had blown out of this engine before I decided to replace them all. I ordered your Calvan 38900 Ford spark plug thread repair kit and four extra sleeves (inserts) and started working on my truck the last week. Denlors Auto Blog
Blog | KnowYourParts
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Image courtesy (F250-Sparkplug-blowout-problem-300×190-1.jpg) denlorstools.com