Does anyone know where I can get a motor from I have a rod knock.Thanks..Elton

 

Geez? An entire new 2UR engine? That is going to be expensive to buy a new one. My guess is, around $30+ K. You might have to try to get one from a wrecked RCF (or a GSF or IS500) to get a lower cost on sourcing it.

 

Good guess, retail for a long block is $28,000.


....here ya go and only $400 shipping
https://www.ebay.com/itm/274765253440

 

Thanks just trying to make the best decision

 

What year is your car? Did you buy it new? How did the bottom end of the engine get trashed.

 

No did not buy it new it has 80k miles on it don't know why it started knocking its at lexus now and is out of warranty going to find a low mileage motor and probably let a local shop do the work 7-12k is what I'm seeing price wise on 10-30k mile motors

 

This has put a bad taste in my mouth for any lexus vehicles first it was my wife's is350 sticky dash and door panels lexus would do anything about it now it's the motor in my 2016 rcf rod knock at 80k miles and it is just out of its warranty and I have to get a used engine at this point and I can't talk anyone higher up at lexus corporate...never again Elton

 

After my recent experience with Lexus, I would take it to a performance shop for a second opinion. I find it very odd that the motor has gone bad. There are plenty of examples of the ISF going beyond 200+k with no issues. Heck I've seen one with almost 500k, stock motor & tranny. Since the RCF motor has been tweaked with better parts than the ISF, I'm struggling to think it's completely toast at 80k.

Can you give more details on what exactly happened or is happening? Lexus is flat out saying you just need a new motor? What tests did they run? They just gave me the run around when all I had was 1 loose hose. I'm going to have a little faith and believe that you will not need a new motor. Unless you've been running nitrous or a supercharger?

 

It would not reveal much without knowing the exact history of how the car was treated by the previous owners. Probabilistically speaking this is a 1 in 1000 occurence. Never seen another RCF engine fail. There are lots of RCFs that are at 150+ K miles (HuangBros, for example and he tracks it hard at Nurburgring).

While RCF engine is a lot more high-strung than the ISF engine essentially reworked from the bottom up with new internals etc. It has a higher compression, higher redline and higher specific output (95 HP/Liter), but that still does not mean it should be any less reliable. Without knowing the history of previous owners, it is hard to say what happened. The oil change intervals and what type of fuel was used can all be a factor in engine damage. If there is a long interval between oil changes, it causes damage over the long term. Putting lower Octane/poor quality fuel in a high compression engine to save on cost, is very common. People think all it does is pulls timing and results in less power, but it also causes pre-detonation, which causes engine damage over the long term. Back in my 2ZZ-GE engine days, lots of people used to do that and it used to cause pre-detonation and that engine has lower compression than the 2UR (12.5:1 vs 11.5:1). Not saying this might be the cause, but just stating there could be potentially many reasons and it might be impossible to know without knowing the history of the previous owners.

Unfortunately, I always say a used RCF is a big gamble since people put cr*p stuff on used RCFs because they get the car as a Lexus and want it to be treated like a Lexus/Toyota and not a high-performance M-rival car with its own special requirements. .I recently saw an RCF with G37 coilvers on it and the owner was complaining his RCF's tail slides all over the place. No ***** it handles like cr*p because they were designed for the G37S.

 

At 80k that is enough miles for abuse to effect the motor if, it was neglected. Things like 10k oil changes, and possibly missing 10k going over. Also there were some early failure Lexus water pumps, and there's the Valley plate coolant leak. Possible also that it was overheated at some point leading to the failure in time later down the road. 1st owner who leased it and did not care, or 2nd or 3rd. I have seen Carfax's with 20k - 30k missing oil changes and you just don't know if? Also there is a possibility that it at one time was running a Supercharger, or NO2, or a pop and bangs Tune with a 8200rpm redline?

I would pull the service history and Carfax. If it seemed to have been serviced and had all the oil changes on time, I would call Lexus customer care and open up a case. If they refuse to help or the cost they give to help is still too much, I would look on car-parts.com and/or other for a used motor in addition to other sources out there. Also it looks like you are in Ga somewhere? There are a few very good engine building shops here who could likely rebuild that motor incl removal and reinstall for around $5k give or take. That's a special motor. Me personally.... I would look at rebuild, including maybe oversize bore pistons, stroker Rods, and some Cylinder Headwork to try and get another 50 - 75hp out of it with increased reliability at one of the Supra performance shops or other domestic V8 performance engine shops. There are many really goods one's here in Ga. In my case when a problem like tis happens I like to take full advantage of it.

 

I would take it to a reliable shop for an opinion. Remember that dealers don’t repair, they only replace parts.

 

It is extremely rare for these motors to have issues unless they were modified or enhanced on some way.

I would suspect the previous owner had abused the engine either with some sort of HP modification (other then headers).

I only know of one locally that needed a motor after he supercharged his ISF but failed to install headers and ended up breaking #7 piston. He ended up getting the engine overhauled and has had nothing but oil leaks to contend with since.

I would highly recommend you look for a used engine out of an RCF/GSF or LC500 or IS500.

 

It doesn't really matter at this point how my motor started knocking but it was not modded and it has 80k and its been a good car and I'm the second owner so at this point looks like I will be putting a used motor in 32k miles and 7k later oh well it is what it is

 

It actually does matter how it started knocking because others can learn on what NOT to do and what maintenance can be done to prevent that.

 

What do you mean by how? What could you learn.... NOT to do? Just asking?