Q & A — April 2004
By Capt. Ken Kreisler
Back Me Up
2: Applying Gasket Sealant, Loud Starter Noises
Do you have any tips
for applying gasket sealant? W.S., via e-mail
Before applying the sealant, make sure that all mating surfaces are clean. Therefore carefully scrape any residual material, grease, paint, or other contaminant from the surfaces with a blunt scraper to avoid marring or otherwise damaging the areas. Once everything is clean, use a quick-drying solvent and a clean, lint-free shop towel to wipe down the surfaces.
To ensure a perfect seal, brush a light coating of sealant on both mating surfaces as well as on both sides of the gasket. But be careful not to overdo it, since excess sealant will squeeze out and make a mess as the surfaces are bolted together. In addition, make sure none of the compound gets into bolt or alignment-pin holes, as this can cause hydraulic lock and subsequent failure of components to properly seat or incorrect bolt torque.
I have an older gasoline
stern drive engine on my boat. What does a loud grinding noise indicate
when the starter runs? T.R., via e-mail
The starter will need to be removed and the starter pinion gear checked. If the teeth are chipped or worn, the flywheel ring gear will also need a look-see. Should this be the problem, replacing both the starter and ring gear may be necessary.
If the pinion gear is in good condition, the problem is in the starter itself.
Need help with a maintenance problem? Write to Maintenance Q & A, Power & Motoryacht, 260 Madison Ave., 8th Fl., New York, NY 10016. Fax: (917) 256-2282. e-mail: firstname.lastname@example.org. No phone calls, please.
This article originally appeared in the March 2004 issue of Power & Motoryacht magazine.