Heli-Coil in Motor Block

Hello everyone! Well, from there asks Fiat147, that is my question ... I have seen them put on the threads that fix the motor steering wheel to the crankshaft, as you know, these are "well" tight, they are subjected to the "wing" of the clutch, the inertia of the engine steering wheel ... have never given known problem (at least for me), wherever they are implanted, they are implantation Robustness that the thread carved directly, I give an example where it is even used in series, you can see it in the threads that sew the turbo to the collector in some PSA engines (I think I remember that inside the nuts), say also that they can be applied in almost all metals with very good results, but what I do not know, what results they give "the cylinder head to the block, by high temperatures, the effort that the effort that the sparkle Combustion ... I suppose someone would have tried, which happens that it is not a method known throughout the world, but this repair is interesting, because it saves you a lot of money if it gives good result, I wanted to know if someone has tried in the block. Well, you are invited to investigate all the benefits of all.

Hello everyone, Ismael, apologize for the question but, is that the same interogate had been around in my nursing several times. At not the immediate performance, if not in the long term of the repair heli coil probee to a problem that exists from the invention of the engines. Thinking a little, it seems serious, in the sense if they have developed kits for different applications within the engine, they have taken into account the different mechanical and thermal applications that occur inside the engines . The only experience with Personal Heli Coil is in competition engines (Amateur Cad Quilpue , with some private support) Chevrolet 6cil 250 in 3, 6500 rpm with almost standard fierce thermal) and there happens what you say that while the repair can be better than the material surrounding it. The other important thing is the completion of the work, especially in the area between the thread and where it supports butt, it must be homogeneous to the time that elliptics, without any cut or angle of 90 degrees, so that there is no concentration of forces in a single point, avoids posterior fractures by fatigue. In any case, in 6th GM engines, the Argentine brothers take us light years, in terms of this, I would like to hear their ipination like everyone's. About

In short, with the contribution of Fiat147, the dilemma is clarified a little more than to do with a "appealed" or reheated block several times, because I have the impression that the butt it brings is of scarves, the car is 22 years old and I suspect that I can carry three changes already, of the cook I find an appropriate pair of "heli-cows and I will" plant "also thinking about the real value of the car (years) and the client's economy (since the invoice = ) but not before checking the block planes and above all butts. Thank you for sharing your opinions. Greetings!!

HELLO HOW ARE YOU? Seeing your problem, the Helicoil is an alternative not as reliable as we would like, but I have had an experience with BMW 06 cylinders, in the lathe they manufacture some threaded speakers that are placed with a press, so we ensure that we are the same clutch screws, hopefully this information serves you because in my case it worked very well, consult it with your mechanic bank

Hi I play, greetings, thanks for contributing a new idea, this is a 4 cyl, well, I do not know about the threaded speakers, if you could explain a bit in which it consists, I would appreciate it, it is that I do not know if the thickness of the block would admit it would drill to greater diameter (I say it by irrigation of block fissure). Let's see if you can tell me how the process is going, I imagine, but better tell us if you can. Greetings!!