draggindre Posted February 25, 2009 Share Posted February 25, 2009 ok does anyone know how to find out what size the motor is i got these numbers of the block AS41 000101102 Quote Link to comment Share on other sites More sharing options...
foolofsand Posted February 25, 2009 Share Posted February 25, 2009 ok does anyone know how to find out what size the motor is i got these numbers of the block AS41 000101102 check with vw or 1200, 1500, 1600cc or measure bore and stroke and do the math--bore squared x stroke x 3.14 = cc Quote Link to comment Share on other sites More sharing options...
RUn2it Posted February 25, 2009 Share Posted February 25, 2009 ok does anyone know how to find out what size the motor is i got these numbers of the block AS41 000101102 Block numbers only relate to the block, could have a few different cranks (stroke length)and cylinders (bore diameter). You might be able to take a straight length of wire through the spark plug hole and slowly turn the engine over by hand (ratchet on the crank pulley bolt) to get an idea of the stroke, can't think of anything at the moment for the bore except measure the outside of the cylinders and guessing at the cylinder wall thickness, been too long since the vw days. Somebody here probably will have an idea. Quote Link to comment Share on other sites More sharing options...
bp-guy Posted February 25, 2009 Share Posted February 25, 2009 (edited) Unfortunately you have to break the motor in half to see what you really have. You can take off just one head and on the top of the piston they inscribed the size of the piston on it. It's on the side very close to the wall of the cylinder. Use a wire brush to clean off the carbon build up to see it. If you can see that then you can get an idea if it is stock or modified. Also just looking at the heads once removed can tell you alot. If it has been cut to a larger size and what valves you have can also be an indicator. Also, if I remember correctly the AS41 case is a mexican made case. Go to www.thesamba.com alot of good info there. Edited February 25, 2009 by bp-guy Quote Link to comment Share on other sites More sharing options...
draggindre Posted February 25, 2009 Author Share Posted February 25, 2009 Unfortunately you have to break the motor in half to see what you really have. You can take off just one head and on the top of the piston they inscribed the size of the piston on it. It's on the side very close to the wall of the cylinder. Use a wire brush to clean off the carbon build up to see it. If you can see that then you can get an idea if it is stock or modified. Also just looking at the heads once removed can tell you alot. If it has been cut to a larger size and what valves you have can also be an indicator. Also, if I remember correctly the AS41 case is a mexican made case. Go to www.thesamba.com alot of good info there. yeah the case is mexican made thanx for the info ill go the that sight nd see what i can find Quote Link to comment Share on other sites More sharing options...
RUn2it Posted February 25, 2009 Share Posted February 25, 2009 measure bore and stroke and do the math--bore squared x stroke x 3.14 = cc ? bore squared not bore radius (bore/2) squared? It's been awhile Quote Link to comment Share on other sites More sharing options...
foolofsand Posted February 26, 2009 Share Posted February 26, 2009 ? bore squared not bore radius (bore/2) squared? It's been awhile no, what is said is correct. no radius involved. bore (9.2cm) x bore (9.2cm) x stroke (8.2cm) x pi (3.14) = 2180cc (as an example) thats a motor with 92mm pistons and crank of stroke of 82mm make life easy and do as above 1. find the stroke by putting wire or screw driver into spark plug hole and find the distance the crank moves from top to bottom 2. can take off head and measure size of piston diameter might be able to estimate piston size by measuring barrel closest to engine block. problem here is barrels may have different thickness, so is an estimate personally, I would tear the motor apart anyway and rebuild it. they are not to hard to build with the right tools and make real real sure you do your tolerances since it is an air-cooled motor and doesn't like to much slop. go for it Quote Link to comment Share on other sites More sharing options...
draggindre Posted February 28, 2009 Author Share Posted February 28, 2009 (edited) i might tear down the engine this summer but im not sure yet cause she runs fine now i just need to adjust the timing cause she pops and backfires a lil but still moves along Edited February 28, 2009 by draggindre Quote Link to comment Share on other sites More sharing options...
bp-guy Posted February 28, 2009 Share Posted February 28, 2009 Does the motor have electronic ignition? If so the best way to set timing is run it up to about 3500 rpm or so, making sure the distributor has let the mechanical advance kick in then set your timing with a light to about 28 degrees total advance. Quote Link to comment Share on other sites More sharing options...
draggindre Posted March 1, 2009 Author Share Posted March 1, 2009 Does the motor have electronic ignition? If so the best way to set timing is run it up to about 3500 rpm or so, making sure the distributor has let the mechanical advance kick in then set your timing with a light to about 28 degrees total advance. nope isnt electronic its the old points system Quote Link to comment Share on other sites More sharing options...
foolofsand Posted March 1, 2009 Share Posted March 1, 2009 i might tear down the engine this summer but im not sure yet cause she runs fine now i just need to adjust the timing cause she pops and backfires a lil but still moves along popping and backfire is usually the exhaust header bolts are loose or if dual webers, there is sand in idle jets. since you have points, put new points and condenser in it, set the static timing per vw and you are done. could be any or all of the three. do them all, only cost a few bucks. Quote Link to comment Share on other sites More sharing options...
bp-guy Posted March 1, 2009 Share Posted March 1, 2009 If you can afford it in the future, get the electronic ignition. Points and condenser are such a pain in the butt to do. Quote Link to comment Share on other sites More sharing options...
draggindre Posted March 1, 2009 Author Share Posted March 1, 2009 yup i know what u meen, i am looking into upgrading to electronic. but we just got the buggie so it will be a lilwhile for that, but we will see. Quote Link to comment Share on other sites More sharing options...
bp-guy Posted March 1, 2009 Share Posted March 1, 2009 (edited) Welcome to the wonderful world of VW's!! I beat the crap out of my 2276 motor and it ran for over 8 years. Take care of it and it will take care of you. Edited March 1, 2009 by bp-guy Quote Link to comment Share on other sites More sharing options...
draggindre Posted March 1, 2009 Author Share Posted March 1, 2009 thanx bp guy. i hope she is good to me. i tiook it out for a ride today, and she ran great. i cant wait till i can get it out to dumont. Quote Link to comment Share on other sites More sharing options...
Doghouse Posted April 6, 2009 Share Posted April 6, 2009 ok does anyone know how to find out what size the motor is i got these numbers of the block AS41 000101102 take a head off measure the bore of the cylinder bring the piston to tdc make a scribe mark bring the piston to btc measure from the top of the piston to the scribe mark That's your stroke e-mail Phil @ Doghouse the stroke & the bore I'll tell you the size 69 stroke x 85.5 is a 1600 69 x 87 is 1641 many other sizes are possible Don't concern yourself with the engine manufacturing number so much as the engine build number found just below the oil fill stand. If it starts with an A for example, it is a very buildable block. www.doghouserepair.com & www.doghouseengines.com Phil Quote Link to comment Share on other sites More sharing options...
sandawg Posted April 9, 2009 Share Posted April 9, 2009 Popping and back fire can also be a too lean seteing on the carbs! My I had that problem until I re-jetted the carbs!!! Quote Link to comment Share on other sites More sharing options...
draggindre Posted April 10, 2009 Author Share Posted April 10, 2009 not realy poping and back fireing anymore she is running great had her at the d last weekend and she ran great but she at the end of my last run it tried to stay running after i killed the switch so i need to look in to that now. thanx for all the good info guys. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.