SOHC vs DOHC
Posted: Mon Dec 03, 2007 11:48 am
HI, does anyone know if a SOHC 6G74 will fit easily into where a DOHC variant came from?
Reason I ask...
For reasons unknown yet I am up for engine work.
104 000km and lost compression in cylinder # 1 and # 6.
Number 6 is a burnt valve, confirmed by leakdown. 100psi
Number 1 is blowing through crankcase breather. 150psi
No idea what has caused this, possibly hasn't been filtering suitably - research on K & N filters in off roading from the internet shows they don't mix and let too much dirt through. It has not been thrashed when I've had it and regular servicings.
People I speak to think it is odd for this motor (4 cam one) to have done either of the above.
What to do
Remembering that I intend to keep the vehicle due to mods already done, and no intention of selling.
- Fix burnt valve that is causing misfiring and carry on driving.
- Rebuild, drive in - drive out $8500 (ish)
- 2nd hand engine, waiting on quote's but basically 4000 - 5000
- pull engine myself and take it to another engine recond and fit myself $5500
- Do an engine conversion (Rover/Lexus...?) $$?
Before everyone says Lexus - need to know why! The Paj 3.5 is great for off roading, has loads of power & saves certification.
Hoping for suggestions, I am leaning towards pulling engine myself and getting it overhauled.
Hearing the news on Friday was not a good day!
Reason I ask...
For reasons unknown yet I am up for engine work.
104 000km and lost compression in cylinder # 1 and # 6.
Number 6 is a burnt valve, confirmed by leakdown. 100psi
Number 1 is blowing through crankcase breather. 150psi
No idea what has caused this, possibly hasn't been filtering suitably - research on K & N filters in off roading from the internet shows they don't mix and let too much dirt through. It has not been thrashed when I've had it and regular servicings.
People I speak to think it is odd for this motor (4 cam one) to have done either of the above.
What to do
Remembering that I intend to keep the vehicle due to mods already done, and no intention of selling.
- Fix burnt valve that is causing misfiring and carry on driving.
- Rebuild, drive in - drive out $8500 (ish)
- 2nd hand engine, waiting on quote's but basically 4000 - 5000
- pull engine myself and take it to another engine recond and fit myself $5500
- Do an engine conversion (Rover/Lexus...?) $$?
Before everyone says Lexus - need to know why! The Paj 3.5 is great for off roading, has loads of power & saves certification.
Hoping for suggestions, I am leaning towards pulling engine myself and getting it overhauled.
Hearing the news on Friday was not a good day!