Loctite help

Ivan Vegvary · 2017-12-13T22:39:02+00:00

Installing valve seals on 1991 Mazda B2600. Engind still in truck. Valve guides are oddball size and the best I could find (Felpro) are seals that are 0.005" too large in diameter to go around the guides. Picture an upside down cap approximately 0.5" in inside diameter and about 0.5" tall. Said cap should fit snugly on the valve guide, with the valve exiting through a seal in the top (0.274" valve). Since the cap is 0.005" larger than the seal, I have 0.0025" to make up with glue all the way around. I could cut shim stock, place symmetrically, and shove the seal thereon. Would any of the glues (Loctite or otherwise) take up a 0.0025" gap? Any advise or other workarounds would be greatly appreciated. Also, if there is a product available, any clever ways of de-greasing the guides? Not a lot of room to work, and the cleaning should not get mixed up with the motor oil. Thanks, Ivan Vegvary

Dec 13, 2017 21 Replies

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Larry Jaques 8 years ago

IIRC, the Courier had interference valves, so when the timing chain went, it at half the valves in the head, and ate many a head and pistons. The engine guy at Dixon Ford in the early '70s hated them. (That was a whole 'nother life ago!)

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Clare Snyder 8 years ago

Like I said - Mazda gave up on building small trucks whenFord stopped selling them as Couriers - and started selling ford designed and ford-built rangers rebadged as Mazdas. The Mazda 5 speed is used in the Ranger and the F150 - the only "good" part from the Mazda parts bin.

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