what kind of still amazes me is slowboy has never contacted me. I called last week asking about getting new rods and they said they would call me back. They still have not called. Mark has made numerous posts on here and never sent a pm to see if he could help or nothing. Show's some great concern for their customers....

 

All due respect to all that are cited...

 

Just out of curiosity, where was CB parked for the Shootout?

 

I didnt build you a motor. You bought parts. I cant call every customer that has a problem on the forum. I have a PM box, you didnt use it. You called the shop and didnt ask for me, heck I never even knew you called. I made posts asking you specific questions in the beginning to see if I could help you. With out you double checking anything before assembling it, it leaves me with not too many options to just take care of it. SO for the lack of calling to see if i could get you new parts, would have came off like I was just trying to get more money from the sale on getting you new stuff. Where as if you would have called me, I woudl have helped you out wwith new parts. When in fact i think you ordered the new parts from somewhere else anyways? So you can call me out on the forum, but dont ask for me directly when you call the shop? makes no sense to me.

Mark
SBR

 

I am somewhat surprised by your attitude in this situation. I called twice and sent 2 emails to tech@slowboyracing.com 1 week prior to making a post here. I only posted because it seemed like there was no desire at all from Slowboy in solving my problem. Why should I have to PM you when I have already made contact with your company? For you to act like I have been dragging my feet is incredibly insulting.

 

I definetly understand where you are coming from with that, but you must also keep in mind that it is a kit as far as the rotational assembly(everything but block). If the kit is brand new then all the rod bearings should be properly measured, even though I personally, you and many others would still double check clearances, but from a customer standpoint you dont expect someone to be mass producing a kit and sell you rod bearings out of clearance spec with the rod journals of the crank if everything is new and it is the vendors spec, which in this case it is. If the crank is used then that is a diff story, but I think this is a new 2.1 stroker kit or at least it says brand new mitsubishi crank so everything should be in spec. Just my opinion

 

Tech is just that. That email is for someone just looking for questions to be answered on installs etc. Not customer service. You called me personally out on this forum as not contacting you. I am the only employee out 20 some that look at this forum from SBR. If you wanted to see what we could do for you, tech wasnt the place to be anyways. My point was if you coudl call me out on teh forum, why didnt you conact me or PM anyways?

Mark
SBR

 

Did you measure the dimensions of the rods and the crank when you put the motor together, or did you just bolt up the parts?

The rods should be measured at three different angles within the big end with a bore gauge or inside micrometer to check that they are within the specifications you intended to use. Don't assume that they are perfect from the factory, or that they are the clearances you expect.

Same with the bearings. Just because they have the right part number on the box does not mean that they are going to "stack up" with your rods and crank to yield the proper clearances.

Same with the crank. Should be ROUND, well radiused journals, micropolished, AND within the tolerances you intend.

Unless you measure both, it's hard to obtain your clearance figures.

Rods can spin from oiling deficiencies, but given that yours all did at once and the first time you got on it, I'd be more inclined to suspect that your clearances were larger than you thought.

 

Ummm...this is a clear cut case of improper assembly. If you don't know any better to measure the bearing clearances when you are building a engine, you shouldn't complain when your bearings spin. Slowboy is NOT at fault for your incompetence.

 

I never said Slowboy was at fault. Obviously if I would have used plastigauge I would I have known for sure if my clearance was alright. Everything was measured properly but there was no plastigauge used. My only beef with Slowboy is their customer service sucks. This was my first attempt at engine building. I learned allot and I am going to try again this weekend. Hopefully this time I will get it right.

 

Using same motor? Or motor damaged?

 

Yup. Nothing happened to the motor.

 

How does SBRs service suck, when you never contacted me for anything? You are admitting it wasnt our fault for the failuer. I didnt know if you still felt pissed about the products and bought them else where. If you contacted me, i was going to give you a great deal on the new parts for the inconvience. But you never got ahold of me, My tech email dept has nothing to with customer service, so how can you say that?

Mark
SBR

 

If "everything" was measured properly, you would not have had a problem. Plastigage is a shorthand method of measuring properly. The longhand method is what I described before -- confirming the roundness of the crank, the rod, and the inside measurement of the bearing installed in the rod and the crank journal and subtracting to obtain the clearance. If you did not do this, then you have no data to look back on when you're trying to determine what caused your problem.

How did you determine this? Obviously, you spun a bearing. The parts of the damaged bearing went somewhere in your motor. Have you measured the rod big end size? Crank diameter? Checked crank journal finish? Flushed/cleaned the oil system? Looked at your other rod and crank bearings and surfaces? What are you planning to do before you assemble the motor again?

 

Only the bare short block is being reused. I have a spare 4g64 crank and I purchased new pistons and rods. I am going with a 2.4 instead of the 2.1.