how to avoid sand getting into the engine

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Forum Index -:- VW Volkswagen & Baja Bug General Discussion

#1: how to avoid sand getting into the engine Author: grasshoper , Location: san diego Post Posted: Tue Aug 05, 2008 02:34 AM
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im rebuilding my 1675 and while its out on the rack I want to make any mods I can before I mount it do I need to sand seal the back on the shroud. can sand get in there?

#2: Re: how to avoid sand getting into the engine Author: perrib , Location: Chandler Post Posted: Tue Aug 05, 2008 11:35 AM
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Nothing keeps sand out of the shroud. You would need a huge air filter that could move 1200 cfm and not clog up. A chicken wire cover is sold to keep out twigs, fingers, rags, etc. Keeping sand out of your generator, distributor and carb are more important. Expensive ($300.00) UMP air filters work the best. On a budget a well oiled KN covered by two foam Outer Wears works fair. They will need cleaning once a day at the Dunes. Grease where the filters meet the housings. I also oil the outer foam filter. A small piece of foam glued to the distributor vents helps keep out sand. Sand kept getting in my points at Glamis and stalling the engine. I oiled a shop rag and tied it to the bottom of the distributer. Lo tech but it worked. The next time I went to the dunes I swapped the points for a Pertronix unit. The rag is still there. A crankcase vent filter, press in sand seal and sand pulley will keep sand out of the crankcase.

#3: Re: how to avoid sand getting into the engine Author: grasshoper , Location: san diego Post Posted: Wed Aug 06, 2008 06:31 AM
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yeah im worried about the new pistons should I regularly change the oil after alote of offroading? well im still building my 1675cc so im trying to make is nice and pritty so I was looking to see if theres anything like rubber seals for the dist. and I have an alternator thats pretty sealed up I hope its good enough

#4: Re: how to avoid sand getting into the engine Author: perrib , Location: Chandler Post Posted: Wed Aug 06, 2008 06:38 AM
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Get the UMP filter and install the pulley sand seal. I have not seen a seal kit for the distributor.

#5: Re: how to avoid sand getting into the engine Author: grasshoper , Location: san diego Post Posted: Wed Aug 06, 2008 10:03 AM
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ive seen water seal gloves its for the cap but I dont know it it will keep sand out.

#6: Re: how to avoid sand getting into the engine Author: perrib , Location: Chandler Post Posted: Wed Aug 06, 2008 10:15 AM
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Foam glued over the vents and black tap for the cap to body work well. My points stayed clean with just the oiled rag tied around the bottom of the distributor base covering the vent holes.



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