Some new 60V6 products

[CNCguy]

The internal trigger wheels are finished but I didn't make any tools for alignment. Dave's idea about using a point from the 56X wheel as a reference works great. I need to get another crank and document the install process. The pictures from the last one weren't very good.

The install is actually pretty easy. Mark (center punch or marker) the position of the old wheel on the crank, remove the old wheel, heat the new wheel in a 300 degree oven for 30 minutes and drop it on the crank with the marks aligned. The wheel expands from the heat and falls on the crank. Once cooled, it has a .002~.003 interference fit and cannot move. The only downside is that you only have a short time (10~15 seconds) to get the marks aligned. The mass of the crankshaft draws the heat out of the ring quickly and after it cools, I don't think it will come off without damaging the wheel.

[bszopi]

The internal trigger wheels are finished but I didn't make any tools for alignment. Dave's idea about using a point from the 56X wheel as a reference works great. I need to get another crank and document the install process. The pictures from the last one weren't very good.

The install is actually pretty easy. Mark (center punch or marker) the position of the old wheel on the crank, remove the old wheel, heat the new wheel in a 300 degree oven for 30 minutes and drop it on the crank with the marks aligned. The wheel expands from the heat and falls on the crank. Once cooled, it has a .002~.003 interference fit and cannot move. The only downside is that you only have a short time (10~15 seconds) to get the marks aligned. The mass of the crankshaft draws the heat out of the ring quickly and after it cools, I don't think it will come off without damaging the wheel.

Unfortunately, I disproved Dave's idea last week...

[CNCguy]

You only use one of the old dimples for a reference. The new wheel has a dimple to match the location of one of the old dimples. That's why I need better pictures.

My problem with getting more pictures is that every 3500 that comes in goes back out with an external trigger wheel. I won't pull the crank unless I pull the pistons due to the risk of dinging a journal. Pulling the pistons and rods require new head gaskets and more time so it is easier and safer IMO to just use the external wheel.

[Jonpro03]

So is the position of the LX9 reluctor at TDC #1 compression stoke marked on that diagram? That's one of the things I need to know for my swap.

[bszopi]

So is the position of the LX9 reluctor at TDC #1 compression stoke marked on that diagram? That's one of the things I need to know for my swap.

No. Unfortunately, I took my trigger ring off long and didn't mark it its original location with super accuracy, so I can't necessarily determine what marks indicate TDC for #1.

[CNCguy]

As soon as I get a chance, I will pull an oil pan off and get a shot of where the #1 slot should be.

[bszopi]

Don't worry about it (unless you need it for yourself). Was in the garage today and realized I have a 3100 sitting on a stand, so I can always pull the crank out of there and document where it needs to go.

[Jonpro03]

You are my hero. Obviously, I need to know what the sensor is reading. If you want, you might get away with pulling out the sensor and use a flashlight to see what event is happening. See my other thread for what I think is TDC #1.

http://www.60degreev6.com/forum/showthread.php/48067-LX9-reluctor-demystified

[CNCguy]

Brad,
The damper can be marked with the crank in the engine if you have a straight edge. Just line up one edge of the 3100 7X wheel with the bottom of the block. Use a straight edge to scribe a line onto the damper inline with the block face. You can put the damper on a vertically mounted 3500 crank with a string and weight to show where the new trigger ring goes.

Jon,
Not a problem to drop a pan since the engines are on stands. I will use an external trigger and the bottom of the block to find the #1 spot on the 3500 wheel. Hopefully, I will be able to get a good picture of where the punch mark goes for installing the 7X wheel.

[CNCguy]

Hoys crank was dropped off for a trigger install and I able to get some better pictures of the internal trigger install.

Below is a picture showing the relationship of the two style trigger wheels. My assumption is the 3500 base timing must be around 2~3 degrees less than the 3400 as neither the leading or trailing edges to the slots match up. The two dimples should be aligned to have the 3400 base timing.

[Jonpro03]

Hoys crank was dropped off for a trigger install and I able to get some better pictures of the internal trigger install.

Below is a picture showing the relationship of the two style trigger wheels. My assumption is the 3500 base timing must be around 2~3 degrees less than the 3400 as neither the leading or trailing edges to the slots match up. The two dimples should be aligned to have the 3400 base timing.

Thanks so much, I'll get to work to figure out how it compares to a LS1.

Seems like it's off by 10 degrees.

[HOYS]

Here is a picture of the crank Marc modified for me. I also had the snout modified for the DR timing chain in the future.

[CNCguy]

Jon,
The two dimples should be inline on the two rings. The position was found by hanging a string with a weight from a dampener on a 3100 crank mounted vertically. The string position was notched into the dampener and the setup was moved to an LX9 crank. I would bet that the slot location is within 1/2 degree or less. I have no idea where "0" is on the LX9 trigger and if it uses the falling edge or rising edge but am assuming it is the rising edge of the slot closest to the "0" slot on the 7X wheel (left of the dimple in the picture).

[Jonpro03]

The cam phases on the low event marked cam (on the LS1). So I guess the next rising edge could be 0*, but that would mean that the cam phases 10* BTDC.

Either way, when it comes time for me to set the timing, I can set 0* wherever I need to. As long as I'm getting a good signal.

[Jonpro03]

TDC for a 3400 is the falling edge right?
At least according to this:

I think then that there would be 5* difference in base timing.