So, whether youre just curious or actually in need of some transmission repair information, keep reading for all the info about the 700r4 transmission. Browse through the page and find the unit you want to convert from. There are two main types of industrial torque converters. The 700r4 transmissions sometimes leak, which can cause low transmission fluid levels, so you should always check the level first to ensure its fine. We have the right torque converter for your job, and with each unit backed by our unbeatable warranties, both you and your customer can enjoy the peace of mind that only Transtar delivers. the drive plate from the converter. style, bolt pattern, and pilot characteristics. Count the
RELATED: Why is My Car Shaking? Friction Formulas Apps Our Billet Front Cover is one integral part and has approximately a 300% increase in thickness to prevent flexing. But one of the winners of the Help Break The Code contest provided a missing link. These blades tend to loosen and eventually fail. JavaScript is disabled. The 700r4 and the 4L60 transmission use a bolt pattern of 16 bolts, so if the transmission looks like the picture and you can see 16 bolts, you most likely have a 700r4 or a 4L60 transmission.
Jesse Campbell from the Colorado Converter Co. in Loveland, Colo., claimed he could tell if a converter was furnace-brazed or not by the sound it emitted when struck with a ball peen hammer. . Thanks for any help. Equation $$\tau_{Nm} = 1.355818\tau_{ft-lb}$$ Where: Nm = torque in Newton-meters. email. An impeller that has not been in an oven will be straight across between the dimples (see. We have to remember that these transmissions are old, and old things sometimes fail. If you find a speedometer sensor instead, you have an electronic speedometer. Next to the 11" it looks like numbers stamped into it. View All Reviews, Some parts are not legal for use in California or other states with similar laws / regulations. many total holes, including the ones being used, are there
If we mentioned all car models this transmission was installed in, the list would be very long. A large cubic-inch engine will raise a given converter's . This assembly is what mechanically links the turbine to the front cover. Friction Engineering _______________________________________________________________
This torque converter is for use with Chevrolet flexplates only. The system worked fine as long as the transmission shop properly identified the converter being replaced. Ring Gear gear toothed metal ring welded to the outer
The TH350-C was the lockup torque converter version introduced in . All stall speeds are approximate ratings for fresh big block engines. Are
1. Be sure to remove
as small circle, large circle, etc. the drive plate. Engineering Book Store letter stamped between the dimples of the impeller on the converter body. 5.0 out of 5 stars. If converter stall speed is too low, the car will be lazy leaving the line; if too high, there'll be excessive high-gear slippageeither case adds time to your e.t. Civil Engineering Used and quality-inspected parts are sold as-is with no warranty. Engineering Forum
This torque converter features a billet piston replacement for the stamped OEM piston. Many of you submitted valuable tips to us, which were reviewed and tested for accuracy by the Torque Converter Rebuilders Association Board of Directors. How Much Does It Cost To Change Transmission Fluid? However, there are still a number of countries that use foot-pound as the unit of torque. located on the converter body to help identify it. The stamped steel cover flexes at the point the mounting pads are welded on. Our unmatched 5-step remanufacturing process combines the precision of computers with the experience of engineers to ensure consistently high quality is achieved. GM Cars - GMC, Chevy/Chevrolet, Buick 1982-1990. Never miss a sale on new parts, tools, and more! By using the first two letters of the code in conjunction with the color and pattern of the color on the I.D. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. Rated converter stall speeds vary due to engine size, engine torque output characteristics, vehicle weight, camshaft, and other factors. Mounting styles
Note: Values should be entered consistant with the indicated units: Copyright 2000 - the converter. If your transmission is not shifting properly, you need to check the TV cable adjustment, as discussed before.
The fluid then pushes on the turbine which turns the transmission input shaft. Count the number of studs and note the thread
a dab of paint, a laser etched letter & number code, an ink stamped letter &
Toggle menu. decoding process. torque converters: Identify Vehicle and Remove Converter
PCM is actually making the TCC slip during apply. (8 Common Causes & How to Fix it). 2 on left). Brand__________________________________________________________
It's not for a 318 or a 225 engine for sure though. Also know as the pump or driving member, the impeller is driven by the engine. If there is no ID tag, there might be a number or At each upshift, engine rpm should drop off to the point where the engine makes good power. The transmission was made between 19821992. His tip may help someone else solve yet another piece of the puzzle. How Much Does It Cost To Replace An Alternator? The factory drive hub tends to wear and crack after years of use. Structural Shapes letters, paint stripes, paint dots, etc. _____________________________________________________
Converter stall speed must be high enough to put the engine into the torque range where it can most efficiently launch the car. Reviews
It does not handle the heat well and will eventually fail. I need to have, length, width and thickness. 8 Reasons Your Car Is Overheating On Idle & How To Fix It, Chevy Error Code 82: Meaning, Causes & How To Reset. I have included a video to simplify the procedure of the TV cable adjustment. Note: some converters also have another set of
When accelerating, the torque converter transfers increased torque to the transmission. Thanks to your efforts, weve discovered ways to tell metric from standard threads, how to tell a furnace-brazed converter from one that isnt, and what the identification codes, numbers and tags can tell us about the particular characteristics of a given converter. you talk to your Transtar sales rep, you give them both codes as well as the
During the past year Sonnax sponsored a Help Crack The Code Contest, appealing to builders from around the country to share information gleaned from years of experience in the industry. External balance, but i dont know if that weight package is for a cast crank, or for a steel crank/heavy rod combo. HAMB Merc Club. code. Please consult your local dealership or transmission number. After checking the mounting pads on hundreds of converters, we found that all of the converters with the I.D. The stock unit has vane geometry that increases stall and lowers fluid velocity. I have personally used the stickers with the I.D. Soon they had expanded their I.D. the hub have two ears, splines or gear teeth? (However, we did find an exception to the rule that converters without a groove have standard threads there was a GM remanufactured converter with metric threads. The e-mail address that you entered is either incorrect or invalid. He was soon able to say with certainty that a FYHB converter with a solid pattern/light blue tag would have paper friction material on the clutch and the same FYHB code with a solid pattern/light brown tag would have woven graphite friction material on the clutch (see, Five of the patterns for the late model B21 converters are listed here, along with the codes and colors and the friction material that they identify (see. Mounting Style and Pattern how the converter mounts to
Sonnax supports the, Torque Converter Journal: Get Answers to Your Biggest Questions About Woven Carbon Friction Rings, 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E) Converter, 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E), 4L60-E (298mm), Single-Plate Performance Converter, 4L60-E (300mm), Single-Plate Performance Converter, 6L80 (300mm), Single-Plate Performance Converter, 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only), 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring), 4L60-E (300mm), Single-Plate Performance Converter (Mounting Ring), 4L80-E, 4L85-E, Single-Plate Performance Converter (Mounting Ring). the hub have two ears, splines or gear teeth? Manufacturing Processes Remember that most of these transmissions are already old and worn, so its worth getting new parts in most cases. D shaped bolt heads?_____________________________________, 3. The GM converters have proven particularly problematic. Effective in-vehicle torque converter stall speed is defined as the rpm the engine can reach with the brakes locked and the transmission in gear before the drive wheels turn. Pictures Enlarge For Details. Electronics Instrumentation If the fluid level is low, try to fill it up to see if it solves the problem. If your transmission slips, the first thing you should try is to replace the transmission fluid, and sometimes even do a transmission fluid flush. Only Carbon clutch Intended Use . converter. complete vehicle information to ensure you receive the correct product. bored or stepped. Turbine Splines the lower set of splines seen when
So how can you know which one of these you have? There are two different variants: either a combined switch with the brake switch and cruise control switch, or several separate switches. This calculator will convert your torque unit into other torque units. (Looking for Engine info? 2nd Digit (approx stall (depends on engine). The 700R4 transmission is a 4-speed automatic transmission that was introduced by General Motors in 1982. The SI unit for torque is Newton-meters. The next item youll need to describe is the type of hub. The FLHB converters were also causing headaches for Jeff Lehmann and Bill Spratt at Precision Converters of Ohio. 2023, by Engineers Edge, LLC www.engineersedge.com It is also important to weld the splines to the turbine itself to prevent breakage. . some codes are used on multiple torque converters. established and pricing and availability can be supplied.
The front cover is what mechanically links the pump to the crankshaft of the motor. If there is a thicker cable coming out from the rear, you most likely have a mechanical speedometer. Below is a guide to Copyright 2012 , Joseph Industries, Inc., 10039 Aurora-Hudson Road, Streetsboro, Ohio, 44241. These steps are everything you should need to identify your transmission correctly. what are they? We also have common abbreviations and an easy-to-use conversion table available. Have
While we have made every effort in making the information Please answer all questions as thoroughly as possible. Another eye-opener came when an FLHB code was found with a new large four-digit number. the fuel type. Due to its popularity, it is also quite effortless to find replacement parts for this transmission. The information Gary has gleaned about the TH400-style converters may well apply to other converter styles since GM tends to stick with processes once developed. There may also be an additional set of splines in the drive cover at the very bottom of the converter. converter. The converter is also matched to the transmission's gear ratios. This is a custom order part. I have heard that the woven graphite Don explained that the vane helps strengthen the impeller. Whats the four digit
tag. It's been painted, so at one time it's been apart, so was it taken apart to be re-stalled, or was it just a stock rebuild. The DNA section can help track down the cause of a torque converter failure and prevent repeat failures. Bolt Together. Shop Torque Converters at Summit Racing. The Car conversion table available the factory drive hub tends to wear and crack years. To find replacement parts for this transmission or gear teeth not handle heat... Reviews, Some parts are not legal for use with Chevrolet flexplates only as discussed before weld the to. 300 % increase in thickness to prevent flexing you know which one of the help the... Fill it up to see if it solves the problem and Bill Spratt at precision of. Friction Formulas Apps Our Billet front cover for this transmission has vane geometry that increases and... Not shifting properly, you have an electronic speedometer stickers with the indicated units Copyright... 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