Rod knock

8

89MkiiiSupra

Guest
Well basically i have a rod knock, need to know what needs to be replaced and estimated cost parts and labor. Basically i talked to like several diff mechanics and they guy that i basically brought it to quoted me at 1400 to rebuild rod bearing, main bearings and other damages oil spill had cause. Now hes telling me that the crankshaft and my rod is all messed up too and now wants 2400 to rebuild the whole engine because he thinks that its better and he will offer me a year guarantee but i think its kinda bullshiet.. so let me know what you guys think
 

ForcedTorque

Join the 92 Owners Group
Jul 11, 2005
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Satsuma, Alabama, United States
It is very possible that you have damaged your crank and rods. $2400 is not a bad price if you have to pay someone else to do the work. You should be sure that he is experienced with Import motors and the tighter tolerances they need. He will also need to know that the stock torque specs on the Head bolts is definitely not enough. What type oil spill did you have?

Also, if you plan to one day upgrade this motor, now is the time to think about metal head gaskets and/or ARP head studs and proper preparation.
 

Rennat

5psi...? haha
Dec 6, 2005
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have you talked to any of the vendors on here? zankoku performance rebuilds engines. a friend and a member on here got his rebuilt by them and has had no problems.

and it is very possible you damaged the crank/rod and will need more work than the original estimate though.

forced - ask IJ about tolerances and he'll tell you his motors last longer when there on the 'loose' side...
 

CATarga

New Member
May 22, 2008
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Grass Valley, CA
I am in the same boat w/my restoration '87, and 42400 for someone else doing the work doesn't seem that bad(as long as he is familiar w/import engines). I have been sourcing parts/engine work, and it is looking to be about $15-1600, and about $15-2500 for a slightly used/rebuilt engine. The price of $2400 isn't bad considering the labor involved.

If you don't use the car as DD, you could wait and find a wrecked car w/good engine and buy it for cheap, that is providing the owner isn't a Supra message board member.
 

Rennat

5psi...? haha
Dec 6, 2005
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CATarga;1115469 said:
I am in the same boat w/my restoration '87, and 42400 for someone else doing the work doesn't seem that bad(as long as he is familiar w/import engines). I have been sourcing parts/engine work, and it is looking to be about $15-1600, and about $15-2500 for a slightly used/rebuilt engine. The price of $2400 isn't bad considering the labor involved.

If you don't use the car as DD, you could wait and find a wrecked car w/good engine and buy it for cheap, that is providing the owner isn't a Supra message board member.


the problem with buying a 3rd party engine from somebody who crashed there car is that they normally crashed doing something insanely stupid with the engine. drifting... haulin ass and lost control, stuff like that... sometimes yeah they werent, but... i would still be VERY cautios of that engine.

and CAT, you could have a machine shop assemble it from the oil pan to the head, your a 4x4 guy so i would expect you know how to take apart and re-assemble stuff... droppin the engine in is easy.
 
8

89MkiiiSupra

Guest
see the thing is when i bought the car these were the mods that were done to the car

New Air Compressor Jun 08 $ 225.00 New A/C Drier Jun 08 $ 45.00
New Radiator Apr 08 $ 211.00
New Alternator Feb 08 $ 93.00
New Wheels Feb 08 $ 751.04
New Tires Feb 08 $ 725.00
Air Cleaner Hose Feb 08 $ 55.22
Lower Radiator Hose Feb 08 $ 31.00
HKS Metal Head Gasket Feb 08 $ 105.00
ARP Head Bolts Feb 08 $ 115.00
Head Gasket Set Feb 08 $ 223.05
Power steering Hoses Feb 08 $ 25.00
Thermostat Feb 08 $ 7.00
Rebuilt Cylinder Head Jan 07 $ 525.00
Fuel Injector Seals Jan 07 $ 35.04
Timing Belt Jan 07 $ 50.48
Timing Cover Seal Set Jan 07 $ 26.60
Valve Cover Gasket set Jan 07 $ 24.00
Heater Hoses Jan 07 $ 134.67
Spark Plugs Jan 07 $ 18.60
Total Wheel Alignment Jan 07 $ 60.00
Front Sway Bar Jan 07 $ 165.69
Front Sway Bar Link Jan 07 $ 60.78
Front Struts Jan 07 $ 78.27
Rear Struts Jan 07 $ 78.27
Front Brake Rotors Jan 07 $ 156.74
Brake Pads Jan 07 $ 20.18
Rear Brake Rotors and Brakes Jan 07 $ 151.88
Rear Brake Pads Jan 07 $ 17.97
Lower Ball Joints Jan 07 $ 118.56
Parts Total $4334.04
 

CATarga

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May 22, 2008
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Grass Valley, CA
Rennat;1115473 said:
the problem with buying a 3rd party engine from somebody who crashed there car is that they normally crashed doing something insanely stupid with the engine. drifting... haulin ass and lost control, stuff like that... sometimes yeah they werent, but... i would still be VERY cautios of that engine.

and CAT, you could have a machine shop assemble it from the oil pan to the head, your a 4x4 guy so i would expect you know how to take apart and re-assemble stuff... droppin the engine in is easy.

I wasn't thinking about the Supra hobby owner, but the driver who uses the car to get to an from work each day who gets tagged in the rear on the highway/stoplight, or T-boned in an intersection where the engine comp is left intact, or hit while parked on the street.

I am not concerned with the assembly part of the rebuild, I have rebuilt both the 22re and 3vze(truck engines), which the 3vze(3.0 V6) is a lot more complicated(mentally, a lot of little crap and vacuum lines to have to keep track of). The 7mgte looks straight forward, similar to the 22re. The only thing I haven't done on the 3.0 is bother with shimming the valves, and tend to pay the dealer to do that, since the Rt-head is buried under the intake.

Right now I am basically being cheap, and not wanting to spend money on a rebuild if I want/need more power in the future. I also don't have any experience w/Supra's power/performance other the TT I test drove back in '95 when I was considering buying one(instead i went to grad school). I was also expecting it to be cheaper to rebuild the engine than buying one(which is usually the case), and I am finding it isn't, or at least not as economical as the truck engines.