Messages

31

Dan Dishon's Transmission Den / Re: converter fallback

« on: September 10, 2018, 05:51:52 AM »

Well you should never do it to find an engine miss, and to do a stall check you should never be more than a short 2 count. Its something that should be done once just to have the data and then only if you are suspecting a problem. Stall checks are not as needed today with the use of data recorders and playback tachs but it is still useful data to have.

32

Dan Dishon's Transmission Den / Re: converter fallback

« on: September 09, 2018, 05:07:00 PM »

A stall check is done with the trans warmed up, you go to WOT against the trans brake with no launch chip.

33

Dan Dishon's Transmission Den / Re: converter fallback

« on: September 09, 2018, 01:41:03 PM »

Depends on who you talk to, as to what is true stall. Some say it is the fallback number, some say it the number from a stall check (This is the number I use). Around 300rpm difference is normal between a stall check number and a fall back number.

34

Dan Dishon's Transmission Den / Re: converter fallback

« on: September 09, 2018, 11:24:46 AM »

Depending on weight it could be. 1000rpm is a base line number, but a lighter cars seem to like less fall back (looser converter). My car is 2080 with driver 5800 stall shift at 7000. The fall back is around 900.

35

Dan Dishon's Transmission Den / Re: PUMP PRESSURE CHECK

« on: August 05, 2018, 02:30:03 PM »

That is the high clutch port, you will a small amount of fluid, not enough to worry about. It will only have pressure when in high gear.

36

Dan Dishon's Transmission Den / Re: quick time flexplates anyone

« on: July 24, 2018, 11:43:51 AM »

I have a CSR on my big motor, but run a generic low cost one on my little motor. Never had an issue with either.

37

Dan Dishon's Transmission Den / Re: Transbrake

« on: July 15, 2018, 08:24:11 PM »

Depending on the valve body anywhere from 185lbs to 230lbs.

38

Dan Dishon's Transmission Den / Re: Transbrake

« on: June 30, 2018, 06:36:18 PM »

Could be low pressure for sure. Remember the transbrake apply is a timing thing. When the solenoid moves the valve it sends low gear fluid pressure to reverse, so for a moment low pressure drops till reverse is applied, the key is have reverse apply and low "reapply" at the same time. So along with low pressure, a bad ring on the low servo, a band out of adjustment, and not enough clearence in reverse can all cause this problem. Check your pressure at the low servo cover and see what you have at idle.

39

Dan Dishon's Transmission Den / Re: Transbrake

« on: June 05, 2018, 10:39:09 AM »

Yes the solenoid unscrews. Sticking is a possibility but Im thinking it would go away after it cycles a few times.

Keep us posted, knowledge is power.

40

Dan Dishon's Transmission Den / Re: Transbrake

« on: June 02, 2018, 04:51:17 PM »

Ok so I locks the break while tried on the return road? Are you just pushing the button and it holds at idle or are you putting it at launch rpms? If it releases, or creeps/drives throught the transbrake when going up towards launch rpm then there is some sort of leak in the reverse circuit from the transbrake valve to the piston. This could be a worn valve, a blown gasket, or a bad seal on the piston. As wideopen said make sure the shifter is adjusted correctly. If you have a reverse pressure port in your case check pressure there and compare it to the low pressure port. If it is a total release of the brake while going up to launch rpm (the brake releases before the solenoid is de-engerized) suspect a weak solenoid. Keep us up on your findings.

41

Dan Dishon's Transmission Den / Re: Transbrake

« on: May 30, 2018, 07:27:26 PM »

If you are talking complete loss of transbrake it almost has to be valve and or solenoid related. If you have a release spring that fit in a pocket in the valve check it deformation. I have them fold over instead of going in the pocket keeping the valve from moving all the way in.

42

Dan Dishon's Transmission Den / Re: powerglide VW starter

« on: May 29, 2018, 07:37:58 PM »

You may contact Coan Engineering in Kokomo In. I remember seeing a VW powered Comp car years ago at the U.S. Nationals with a Coan sticker on the trans.

43

Dan Dishon's Transmission Den / Re: Excess pressure in trans while in park and idling maybe

« on: May 28, 2018, 07:41:48 PM »

Glad you found the issue, you build them long you are bound make a mistake.

44

Dan Dishon's Transmission Den / Re: powerglide VW starter

« on: May 25, 2018, 07:45:22 PM »

From what Im reading on some other forums they are cutting a "pocket" at the 12 o' clock position in the powerglide case and mounting the starter to the adapter. Also read one where they adapted a standard chevy flex plate to the VW engine.

45

Dan Dishon's Transmission Den / Re: powerglide VW starter

« on: May 25, 2018, 07:29:41 PM »

I have seen a few set-ups like that but never puad attention to how it was done. My you can find info on a VW fourm.