Thrust angle, how to set it? ... I have seen a lot of guys adjust the engine thrust angle in an attempt to correct an unknown issue with the incidence or decalage ... The thrust angle is an imaginary line drawn perpendicular to the rear axle’s centerline. It compares the direction that the rear axle is aimed with the centerline of the vehicle. It also confirms if the rear axle is parallel to its front axle and that the wheelbase on both sides of the vehicle is the same. Dec 23, 2014 · Vince Tornelli from Florida Shores Truck Center demonstrates bending the axle during a front end alignment.
The thrust angle is 0.40, which I understand from searching on here means the Left Rear lower control arm needs to be lengthened about 1/8". My question is, can I shorten the Right Rear LCA 1/8" instead? Aug 01, 2016 · Additionally, a key difference between using the Smart Strings system versus toe plates is thrust angle adjustment. Toe plates only measure toe between two wheels at a time — front or rear — which means the measurements to the true center of the vehicle relative to each other aren’t known. Thrust angle is the direction that the rear wheels are pointing in relation to the center line of the vehicle. If the thrust angle is not zero, then the vehicle will "dog track" and the steering wheel will not be centered. The best solution is to first adjust the rear toe to the center line and then adjust the front toe. Thrust angle is the direction that the rear wheels are pointing in relation to the center line of the vehicle. If the thrust angle is not zero, then the vehicle will "dog track" and the steering wheel will not be centered. The best solution is to first adjust the rear toe to the center line and then adjust the front toe. HowTo: 4 wheel alignment (toe and thrust angle) Purpose This is intended to describe the process of doing a 4-wheel alignment on your car using the "Strings" method.
A thrust angle alignment will compensate for the rear end pulling the car in one direction or another. Every car has a thrust angle, solid rear axle or independent. But with an independent rear suspension that has adjustments, you can compensate it, and set it to the centerline of the car. HowTo: 4 wheel alignment (toe and thrust angle) Purpose This is intended to describe the process of doing a 4-wheel alignment on your car using the "Strings" method.
Adjusting rear toe should correct the thrust angle, but the rear suspension design may not allow toe correction. If a thrust angle can't be eliminated, align the front wheels to the thrust line rather than to the vehicle's geometric centerline. The adjustment cams are backwards on these trucks, compared to the newer radius arm 2013+ trucks. This means moving the arrow on the cam to the front of the truck, is increasing caster degree. As you lift these trucks, if you leave the caster adjusters alone, the factory geometry causes the caster degree to increase. Technician A says the standard sequence for adjusting wheel alignment is: rear camber, rear toe, front caster/camber, and front toe. Technician B says excessive front toe-in can cause a scalloped wear pattern.
May 01, 2005 · If the thrust angle is "off zero," this can contribute to vehicle dog-tracking (crooked body relative to direction of travel), increased tire wear and unequal left/right turning. Total four-wheel alignment allows you to adjust and hopefully correct rear axle thrust angle, which allows you to adjust the front wheels parallel to the rear wheels. The adjustment cams are backwards on these trucks, compared to the newer radius arm 2013+ trucks. This means moving the arrow on the cam to the front of the truck, is increasing caster degree. As you lift these trucks, if you leave the caster adjusters alone, the factory geometry causes the caster degree to increase. A free ASE practice test to help automotive technicians and students pass the A4 Suspension and Steering test. A multiple question ASE study guide each with a sample ASE Practice Test loaded with illustrated answers and examples for better understanding. The rear thrust angle on my jeep is off. I got in an accident awhile ago and got the jeep fixed. I lifted my jeep and went to get new tires and an alignment i was told the rear thrust angle is off but "we can set it to drive in a line" then i went right where i got the jeep fixed and said fix this now. they said "you lifted it and that voids any work we did" then they gave me all the papers ... THRUST ANGLE is the angle of the rear axle relative to the centerline of the vehicle. Incorrect thrust angle can cause off-center steering and excessive tire wear. This angle is not adjustable, damaged component(s) must be replaced to correct the thrust angle. Alignment Diagrams
The back of the propeller should be on the centerline of the fuselage when viewed from above and on the thrust line when viewed from the side. If the model you are building has a thrust adjustment and you center the engine mount on the intersection of these two lines then the propeller will be in the wrong place. Oct 08, 2015 · Make thrust angle adjustments by turning the toe-in adjusting bolts of the rear suspension equally in the same direction. For reference: When one rear wheel is adjusted in a toe-in direction, adjust the other rear wheel equally in a toe-out direction, in order to make the thrust angle adjustment.