Cali conversion gen. stand offset?

BigBlockPuma · Post by **BigBlockPuma** » Fri Jan 21, 2005 11:43 am

I would like to do a basic type 4 conversion for my Puma to see if I like it. I have a '76 2 litre, some rebuilt stock 1700 heads that will need opened up, 411 exhaust pipes without heater boxes and bus extractor. My question is that if I purchase a generator stand from Jake to do a cali conversion will it allow me to center the stock fan shroud between the two cylinder banks?

dstar · Post by **dstar** » Fri Jan 21, 2005 11:55 am

The *stand* isn't what decides where the CENTER is, YOU DO!

When you make the tin, YOU have to cut the slot for the shroud to sit in and no, it doesn't sit EXACTLY in the center of EITHER bank,
unless you spring for a DTM.

CB Performance sells shim kits to get the pulleys to line up almost
perfectly though.

Don

NextGen · Post by **NextGen** » Fri Jan 21, 2005 1:00 pm

whoaa guys, first check with Jake if he as a stand to fit my style set up. Then you just bolt it up. The trick is to get the Crank Pulley as close to the case as possible. This way the Alt/Gen will be able to move the middle of the engine. Once you set up the crank pulley the lenght of the Alt/gen sets up the fan location.l

As for the alt/gen pulley go to Nates site and check out his idea as to taking the stock gen pulley and then taking out the center adaptor and reversing it. Amazingly the fanhousing fits right in the middle of the engine. Without reversing the pulley center you would be 1/2" off to much to the Crank pulley end of the engine. Get the crank pulley done first then the rest falls into place.

The major difference with doing it your self is you would also have to center the fanhousing from side to side then make the mounting holes for the stand., besides building the stand. Also getting the height of the stand Parallel to the base. Unless you really screw up you can't get the stand too badly off. Just get a smaller or larger belt,ha.

If you buy the stand you are set up from side to side and height. The Back and forth is the only adjustment.
Joe

BigBlockPuma · Post by **BigBlockPuma** » Fri Jan 21, 2005 6:22 pm

Thanks, I thought the stand would limit how far back the shroud sits. By the way I do have the Nextgen manual but I plan on using Nate's way of converting the crank pulley though I will use a stock steel pulley. I think Jake's stand will work but I will mail him and ask. The stand looks like alot of fab work to get everything lined up just right as far as the proper height, left to right, and parallel with the engine centerline. Then you have to get it to a welder while it is still all together.

NextGen · Post by **NextGen** » Fri Jan 21, 2005 9:28 pm

Your right the stand is a lot of work, it is the heart of the Cali conversion. So if you build it yourself great and a lot of guys have, and some of STEEL!! But if you can spare the bucks then just buy the stand, reverse the steel pulley get the crank pulley close to the case and the rest of the job is playing with sheet metal. Take your time the winter is a great time to do it . Easy for me to say, but if you do have the time take it, you will be happy you did the first time you start the engine.

Joe

aircooledtechguy · Post by **aircooledtechguy** » Sun Jan 23, 2005 3:26 am

If you are planing to use a generator, then it really doesn't matter whos stand you use since you can slide it to any position fore and aft you need. If you are going to run an alternator though, you had better ask the right questions before you buy because it WILL effect where the shroud sits. That alt. will onmly slide as far as the bulbous end will allow.

I noticed on Jake's DTMs the crank pulleys are out further from the case than I made mine. I machined my crank pulley so that it's *just* aft of the bosses on the engine case (clears by about .020"). This gets everything as far fwd as possible so that you can more easily get the shroud centered. His DTM is made to fit and work well with his parts in these positions. While they can be used for a Cali in the traditional way, it may be better to make custom parts so the shroud fits the way you want it to. Good Luck!!

IMPI · Post by **IMPI** » Sun Jan 23, 2005 9:37 am

Hi all has anybody looked into old 6 volt pulleys: they also space the pulley away from the gen. the other idea is to use a bus generator it is longer than a beetle gen and could also work
Regards
IMPI

Ram · Post by **Ram** » Sun Jan 23, 2005 9:53 am

I tried to make the Nate style conversion to my alternator pully , I whacked it with a hammer a few times and it broke into pieces...

dont try doing it with the original pully it does not work!

NextGen · Post by **NextGen** » Sun Jan 23, 2005 3:15 pm

Some Gen pulleys are really welded in place and it takes some work with a Dremel cutting wheel then the hammer wacks. Or for like $10 by an after market pulley. As if the center is a separate part. They sell them separate. Then all you have to do is reverse the center piece and you have a stock pulley at the correct distance.

Joe

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Jan 23, 2005 7:21 pm

My stand will work... Many guys have used it and even my Cali style DIY kit utilizes it. The same holds true with the Crank pulley.

The key is to have the stand and pulley when you begin the conversion so it can be utilized to get the dimensions correct.

daylight · Post by **daylight** » Mon Jan 24, 2005 10:29 pm

howdy ram how about a alt pulley from 356 or 912 porsche, it comes in three parts, outer,inner half and fan pully hub. the alt fan will have to wielded. the pulley is smaller than stock vw, high rpm l hope it helps