Tie Bar location...?
 

Why are the tie bars on these boats located on the saddle?

Re: Tie Bar location...?
 

And on these boats they are inline with the steering rams... Advantage?

Re: Tie Bar location...?
 

More inline examples...

Re: Tie Bar location...?
 

Directly in line is better. Just try doing a little force-vector diagram and you can see with the tie bar low and the steering ram high the outdrive will want to twist. This will put added wear on the gimbals bearings.

On a side note:
Twin tie bars if not directly above one another will cause the drives to bind.

DS

Re: Tie Bar location...?
 

Thanks for the repliy Zanie. :cool:

Re: Tie Bar location...?
 

Both is best....... we try to stabilize the lower units because the props are so close!!

Re: Tie Bar location...?
 

How do you tighten the saddle bolts enought to keep the saddle from movving back and forth at speed and gouging the top of the outdrive?

Mine are doing this and I'm at a loss as to how to get the ting stay in one place..

Re: Tie Bar location...?
 

Mine was a pretty easy fix:

Before....

Re: Tie Bar location...?
 

...after!

Re: Tie Bar location...?
 

But seriously, notice in the first pic how the saddle tilts backwards slightly? This lessens the movement from the water crashing against it. Mine always ended up in this position, so that's how I put them back together after wrenching.

Brian

Re: Tie Bar location...?
 

Brian I don't see the tilt you're talking about on the saddles. I need to double check that I've really wrenched the nots as tight as possible on the saddles because mine are gouging the drive when they lean all the forward and all the the way back.

The problem would go away I agree if I went to external steering with the
tie bar at the top of the drive.

Another question--I've got a pair of wing plates--could I move the tie bar up to top with the factory internal sterring untill I get the rest of tha parts to go full hydraulic?

Final question--your drive lowers looke exactly like mine and they seem to be same distance below bottom--in my case 9". Is that consider typical or those extended drives?

Thanks

Re: Tie Bar location...?
 

dhlaw why two pair of raw water dumps on the transum? i assume 2 are for intercoolers...what are the other 2 for?. BTW *****in ride, ratman

Re: Tie Bar location...?
 

Poorsche, installing wingplates would be a good place to mount a tie bar. Keep in mind that you'll have to cut off your tie bar and re-thread it because it will be shorter hanging off of the inner "ears" of the wingplate. You will have to do this anyway when you go to external steering. You'll also need to buy some clevis type tie bar ends to use with the wingplate bolts, again this is also necessary with ext steering.

My propshafts are now 5 1/2" below the running surface with the Konrads.
They are 1 1/2+" shorter than my TRS's were, so the TRS's were rigged a little more than 7" from propshaft to running surface. 9" sounds pretty deep. Is that typical for your model Formula with TRS's?

Mine were TRS's, not TR's (which have the longer lower). I doubt you will find many performance boats rigged with TR's, due to their deep dimensions and HUGE lower unit.

Brian

Re: Tie Bar location...?
 

The wingplates I've got have the attachment point in the center--directly over the CL of the drive--they look like Marine Machine product.

Attached is a picture of the drive I've got--can you tell anything about it?

Re: Tie Bar location...?
 

Looks like a TRS :D

If you're going to switch from saddles to wingplates for your tie bar, you should still consider clevis type tie bar ends. This allows the geometry to work better and is a stronger joint.

Good luck,
Brian