Balance Shaft/Timing Belt 's

1320B4U · May 20, 2004

I know I've seen them in some threads, but I can't seem to find them. The #'s on the VFAQ page don't work at Concelli. If anyone has the Bearing part numbers could you please post them. I have:
MF665541 Metal plug
MD098626 Mirage 1.6 Stub

The BS removal requires a new oil pump seal? Does anyone have that part #. Is there anything else required to complete the rear BS removal? Special tools?

I'm also doing T-belt/Water Pump. Aside from the T-Belt/WP, tensioners, pulleys, acc. belts, or there any other parts I need? The WP needs a gasket right? Special tools? Is the Miller all I need?

Any help would be appreciated.

Also, is there any place with better prices on OEM T-belt or WP? Concelli has it's Club DSM price for the T-belt at $56, but when I put it in my basket it rings up at $68, same with some of the other DSM parts. It does say prices subject to change, but geez. At DSMotorsport or the like, it has OEM T-belt on sale for $33! with reg. price $44. You think it's really Mitsu? Their OEM WP is similar in price to Concelli, but the both the sale and the Reg. price on their OEM Mitsu T-Belt is half that of Concelli's*.

mitsugsx95 · May 20, 2004

MD343563 oil seal, crankshaft
MD741818 oil seal, M/T front balance shaft

BUCK · May 21, 2004

ALL NEW Front Case Oil Seals & don't forget the Water Pump to Pipe O-Ring - You'll need soft & hard Loctite - Gray RTV - Low & Mid - range Torque Wrenches, Razor Blade Scraper - All new belts would round out your Parts List & a new Harmonic balancer if yours is original. Great mod - Credit to you for having the sense to do it... :thumb:

Xska555 · May 22, 2004

what would you benefit from removing the balance shafts?

Suparata · May 22, 2004

The balance shafts bearings take the most hit in the engine first because the rear shaft gets unfiltered oil at all times and not under adequate pressure like the rest of the bearings and second because they rotate at high RPM.
So reusing the rear shaft which is already scored and undersized even with a new bearing is not optimal, never mind if the stock worn bearing gets reused.
And leaving the front shaft in the engine just causes an unnecessary loss of oil pressure to the rest of the engine.
Overall eliminating the balance shafts using the kit is a so much better choice.

1320B4U · May 22, 2004

Inline 4's are naturally unbalanced, and the purpose of the shafts is to eliminate the vibrations that the driver will feel in the car. The balance shafts rotate at twice the speed of the engine in the opposite direction, thus canceling out the vibes. So at redline they're spinning at 14,000rpm! The B-shaft bearings can go bad, the B-shaft timing belt can snap and get caught in the main T-belt (which is definitely not good), and by removing them your eliminating...I think 6lbs. of rotating engine mass (rev quicker, spool quicker?), and oil pressure will rise(good). The bad is you'll feel more vibration in the car. Most say you barely notice, but some say it's quite noticeable. The last time I had to change my T-belt was because the B-shaft belt broke and became tangled in the Timing belt, so that's reason enough for me to remove them.

BUCK · May 22, 2004

Correct - I got quicker revving, better Oil Pressure & a little vibe in the Steering only at Idle.

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Balance Shaft/Timing Belt 's

1320B4U

mitsugsx95

BUCK

Xska555

Suparata

1320B4U

BUCK

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