News: how to install a lenco transmission

Once you have achieved the proper clearance reinstall the pressure plate spring and clutch housing snap ring it is then complete, ready for installation. PA Street Smart System kits are designed to make the transmission upgrade for muscle cars and street rods easy. Screw air servo into case until it bottoms out against the jam nut. 1.22% Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. Show full articles without "Continue Reading" button for {0} hours. 1.23% Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear.

The Lenco transmission must be installed to the bell housing and the engine and mid plates must be completely welded before installing the Lenco mount. A coupler supplies forward, neutral and reverse. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts.

This will allow for free play in the shift system. The transmission in our Dodge Demon was built for us by Performance Automatic (PA) in Gaithersburg, Maryland, and is based on the later 1971 to 1978 model. 0000012682 00000 n 1.48% - Uses 22 tooth planet gears, a 40 tooth sun gear and an 83 tooth ring gear. Run the air servo jam nut and o-ring up the threads on the servo. 1.21% Uses 21/31 tooth planet gears, a 24 tooth sun gear and a 76 tooth ring gear. Jerico makes road racing transmissions that are extremely strong. 0000012727 00000 n 1.16% Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear.

When this same section is shifted the Sprag then allows the sun gear to rotate in the same direction as the crankshaft. 0000001462 00000 n 0000000016 00000 n

1.23% Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear.

I opted to upgrade the output shaft/retainer to 32 spline and also elected aerospace grade bearings which alone was a $1000 option.

Our 1971 Dodge Demon project is making neck-snapping power courtesy of a couple of Comp Turbos plugged into our eBay Hemi. i think there is some period in our lifes where we decide what is just the coolist stuff on earth.

The right move for our Dodge Demon was to stick with the classics on this throwback and bolt in a 727 TorqueFlite from Performance Automatic. 1.16% Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear. Unfortunately, we no longer sale small Sprags do to the ever increasing horse power produced with today's motors.

0000002494 00000 n 0000012284 00000 n This will allow for free play in the shift system.

A coupler supplies forward, neutral and reverse.

Then, continue to screw air servo Out (counter-clockwise) one half turn. Final drive ratio is 1:1.

"Life is tough.,, Life is even tougher if you're stupid."​. Check out the details only at carcraft.com or the June 2012 issue of Car Craft Magazine. My Lenco ST1200 for the black Charger showed up today. 0000002198 00000 n

1.313% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. Shafts are available in Marage or 300M material.16 or 32 spline.

The Sprag clutch is utilized in each shiftable section of the LENCO with the exception of the reverse. © Provided by Hotrod It has a fine-spline input shaft and, when the Performance Automatic transmission is properly prepared, is suitable for 600 to 700 hp abuse at race car weight and can handle a 10- to 11-second street door-slammer, no problem. H����n�@���)F� ��z�kKQ$0������� 8) -----From: Travis & Kim Rice [mailto:[email protected]] Sent: Saturday, June 21, 2008 4:44 PM To: [email protected] Subject: st1200 I am interested in your ST1200 street transmission. 1.313% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear.

Some guys are using motorcycle transmission/clutch fluids by Bel Ray or Torco. 1.378% Uses 23 tooth planet gears, a 28 tooth sun gear and a 74 tooth ring gear. 1.20% Uses 40 tooth planet gears, a 21 tooth sun gear and a 102 tooth ring gear.

They actually have an assortment of different types of trans you can choose from. The reverse pattern also pulls down and away from Neutral and Reverse so you don't accidentally engage them.

1.31% Uses 27 tooth planet gears, a 25 tooth sun gear and a 80 tooth ring gear. This kit bolts Lenco transmissions to our slide mount kit (sold separately). Will fit Lenco CS1, CS2, and CS3 transmissions.

We briefly considered a modern overdrive, a stick, and even ogled a Lenco on eBay until fabricator Grant Peterson ended that conversation. There are two different size air servos for the New Generation transmissions.The small air servo (2.5"piston diameter) and the large air servo(3"piston diameter) for the CS-2 large case transmission and Lencodrives. 1.280% Uses 27 tooth planet gears, a 21 tooth sun gear and a 75 tooth ring gear.

<<0728E981CC1EDE4AB94CB3E06AE0FA71>]/Prev 31579/XRefStm 1089>> 1.20% Uses compound 22 and 32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear.

The 727 first appeared in 1962 as the "early model" that had a large-spline input shaft and was sometimes operated with a push-button shifter. All levers in forward position result in the transmission being in first gear.

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The middle case would also contain a 1.37 planet gear set. $5.66. Sight through plug hole, where you will see the outer edge of the rotary shift plate.

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1.22% Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear.

1.17% (1.165) - Uses 22/38 tooth planet gears, a 24 tooth sun gear and an 84 tooth ring gear.

1.34% - Uses 24 tooth planet gears, a 25 tooth sun gear and a 74 tooth ring gear. 1.73% Uses 14 tooth planet gears, a 76 tooth sun gear and 104 tooth ring gear. The second lever, and second tallest, is used for third gear. He was correct.

Magnesium case is standard. 1.25% ratio uses 32 tooth planet gears, a 22 tooth sun gear and an 86 thooth ring gear. I have over $6000 in this transmission. Discussion Starter • #1 • May 21, 2005. can someone explain the good and the bad about lenco transmissions.

The air servo is attached to a rotary shift plate by an adjustable arm which is pre-set by the factory and should NOT be changed. Each sun and planet gearset provides two speeds. Figure 13 Figure 14 Figure 15 AA coupler coupler direct drive - with reverser / Cannon to control clutch arm position, Screw the servo into the transmission case until contact is made with the shift fork pin.

The arm is held into the servo piston by a set screw.

In this case, we moved the engine back when we installed the Chris Alston's front frame kit, and the floorpan had to go. I shift it with a timed switch getting its signal from an electric shifter box so that it applies voltage for 17 sec at the shift. 1.20% Uses 22/32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. %%EOF 1.38% Uses 23 tooth planet gears, a 28 tooth sun gear and an 74 tooth ring gear. 1.338% Uses 24 tooth planet gears, a 25 tooth sun gear and a 74 tooth ring gear. 1.256% Uses 32 tooth planet gears, a 22 tooth sun gear and a 86 tooth ring gear. Our blue, green and tan disc are supplied new at approximately .058"- .061" thickness.

Figure 13 Figure 14 Figure 15 AA coupler coupler From what i've seen they seem very bulky. 1.22% (1.219) - Uses 30/35 tooth planet gears, a 23 tooth sun gear and a 90 tooth ring gear. Burnout's (on all LENCOS): We would have to go through it every race. We want to thank Greg Sumek, Paul Mendoza and all the rest of the people at Lenco for spending the time to show us their factory, and to explain how their transmission works.

1.44% Uses 22 tooth planet gears, a 35 tooth sun gear and a 79 tooth ring gear.

Body Mount Plate. The reason you don't FP 1st is simple; you're only downshifting into it, and often at low speeds. About 10 years ago maybe someone made a street version of a lenco. Screw air servo in (clockwise) until you see the rotary plate start to shift, now screw air servo Out (counter-clockwise) until the rotary shift plate stops moving. All Rights Reserved. This is what comes standard in most new LENCO transmissions. Run air servo jam nut and o-ring down against the case and tighten with a 1 1/2" wrench. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Not to often with the clutches since they run wet unless you lost air and then you would cook them. 1.25% Uses compound 25 and 29 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. This is the easiest method I have found for installing a transmission cooler into your vehicle to imporve transmission cooling and fix/prevent transmission overheating.

When discs wear to .052" or less they must be replaced.

1.50% - Uses 17 tooth planet gears, a 34 tooth sun gear and a 68 tooth ring gear. The tallest to the right is used to shift the transmission from first to second gear. 1.479% Uses 19 tooth planet gears, a 35 tooth sun gear and an 73 tooth ring gear. (only on CS-1 style or center shift transmissions): Air shifted LENCOS come pre adjusted from the factory.

In any other position the transmission will not shift.

The second lever, and second tallest, is used for third gear.

142 0 obj <> endobj 1.19% Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear.

Run the air servo jam nut and o-ring up the threads on the servo. Sight through plug hole, where you will see the outer edge of the rotary shift plate. It was in the Mags as the hot new thing... Havn't seen it since so I guess it wasn't the hot new thing.... -=1970 Malibu - 454, 4spd, 3.73 12 Bolt Posi =-. startxref

The rear case a 1.31 ratio gearset.

After inserting arm into the air servo piston boss, run set screw in until you can no longer remove the arm from the piston boss. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!

one of those coolist things for me was the lenco transmission. trailer

The CS1 will control up to 3000 HP. LENCO transmissions are shipped with the shift levers removed in order to prevent damage during shipping. No further adjustments are necessary as there is ample reserve travel in the servo. There must be a minimum of .060" to a maximum of .090" of clearance between face of pilot bearing to beginning of clutch spline. Remove fill plug on top the transmission case you are going to adjust.

1.566% Uses 18 tooth planet gears, a 45 tooth sun gear and an 81 tooth ring gear. We found the small Sprags service life growing shorter and shorter, so we have discontinued it and highly recommend upgrading to our large Sprag assembly. %PDF-1.4 %����

When doing burnout's you need to roll up to the water box then shift all sections accept the front section. DJ Safety Transmission Blankets are built with multiple layers of ballistic material to capture exploding shrapnel.

Never blip the throttle. Quick Release Window Net Mount Kit.

In order to achieve an underdrive first gear ratio the LENCO transmission relys on planet gears which rotate around the previously mentioned sun gear. LENCO transmissions are shipped with the shift levers removed in order to prevent damage during shipping. All LENCO transmissions can be shifted with levers or a CO2 system. Assemble next section on to case and bolt tight. You will need to add a LENCO reverse unit in order to back up. To install lever remove bolt, insert lever in shift tower so that it faces forward and install bolt.

Lenco & Jeffco are both here in San Diego.

0000002928 00000 n Warning: Do Not over tighten set screw.

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