GM TH400 automatic transmission unit - Revision history

Chair at 15:32, 17 October 2019

2019-10-17T15:32:34Z

Chair at 15:31, 17 October 2019

2019-10-17T15:31:32Z

Chair at 15:30, 17 October 2019

2019-10-17T15:30:36Z

Chair at 15:30, 17 October 2019

2019-10-17T15:30:13Z

Chair at 11:53, 20 December 2015

2015-12-20T11:53:54Z

Chair at 11:52, 20 December 2015

2015-12-20T11:52:44Z

Chair at 11:52, 20 December 2015

2015-12-20T11:52:17Z

Chair at 10:34, 25 March 2014

2014-03-25T10:34:05Z

Chair at 17:15, 8 May 2013

2013-05-08T17:15:58Z

Chair at 17:13, 8 May 2013

2013-05-08T17:13:19Z

@@ Line 14: / Line 14: @@
 If used intensively recommend oil change every six months. Filters changed ???
-Current transmission warranted until summer 2020 (check invoice for date). In event of failure take the unit to Newbury Auto Transmissions in Boundary Road. They have been notified of suspected low pump pressure from the outset (Skylaunch built box has 100 psi under load, NT built one only 65 psi. under load, but the box seems to be performing well as of Oct 2019.
+Current transmission warranted until summer 2020 (check invoice for date). In event of failure take the unit to Newbury Auto Transmissions in Boundary Road. They have been notified of suspected low pump pressure from the outset (Skylaunch built box has 100 psi under load, NT built one only 65 psi under load), but the box seems to be performing well as of Oct 2019.
 '''Gear lever positions'''
 Shift positions for TH400 [[Media:TH400.pdf‎]]

@@ Line 1: / Line 1: @@
 '''GM TH400 automatic transmission'''
-The secret of longevity:
+Essential maintenance:
-Change oil and filter frequently
+*Change oil and filter frequently
-Flush cooler for time to time
+*Flush cooler for time to time
-Keep oil cool 65-80 deg C
+*Keep oil cool 65-80 deg C

@@ Line 6: / Line 6: @@
 Flush cooler for time to time
 Keep oil cool 65-80 deg C
 When changing oil, disconnect inflow hose from external oil filter and run engine until oil stops draining, shut down engine and reconnect hose. When refilling use Dextron II ATF. Fill to top mark then run engine, check oil level after running the engine under load and top up to middle mark. Filter should be changed one a year.

@@ Line 4: / Line 4: @@
 Change oil and filter frequently
 Flush cooler for time to time
-Keep oil cool
+When changing oil, disconnect inflow hose from external oil filter and run engine until oil stops draining, shut down engine and reconnect hose. When refilling use Dextron II ATF. Fill to top mark then run engine, check oil level after running the engine under load and top up to middle mark. Filter should be changed one a year.
-When changing oil, disconnect engine end of top hose from oil cooler and run engine until oil stops draining, shut down engine and reconnect hose. When refilling use Dextron II ATF. Fill to top mark then run engine, keep alternately topping up and running engine until oil comes up to bottom mark. Oil level will gradually come up to top mark after engine has been stopped for some time.
+Internal filter change requires removal of gearbox sump. Do not over torque gasket. Take care not to loose plastic pick up pipe which connects filter to gearbox.
-Filter change requires removal of gearbox sump. Do not over torque gasket. Take care not to loose plastic pick up pipe which connects filter to gearbox. If used intensively recommend oil change every six months. Filter change once a year.
+If used intensively recommend oil change every six months. Filters changed ???
-In event of failure take the unit to Newbury Auto Transmissions in Boundary Road
+Current transmission warranted until summer 2020 (check invoice for date). In event of failure take the unit to Newbury Auto Transmissions in Boundary Road. They have been notified of suspected low pump pressure from the outset (Skylaunch built box has 100 psi under load, NT built one only 65 psi. under load, but the box seems to be performing well as of Oct 2019.
 '''Gear lever positions'''
 Shift positions for TH400 [[Media:TH400.pdf‎]]

← Older revision		Revision as of 11:53, 20 December 2015
Line 17:		Line 17:
	'''Gear lever positions'''		'''Gear lever positions'''

−	Shift positions for TH400	+	Shift positions for TH400 [[Media:TH400.pdf‎]]

← Older revision		Revision as of 11:52, 20 December 2015
Line 17:		Line 17:
	'''Gear lever positions'''		'''Gear lever positions'''

−	Shift positions for TH400 ~~TH400.pdf‎~~	+	Shift positions for TH400

← Older revision		Revision as of 11:52, 20 December 2015
Line 14:		Line 14:

	In event of failure take the unit to Newbury Auto Transmissions in Boundary Road		In event of failure take the unit to Newbury Auto Transmissions in Boundary Road
		+
		+	'''Gear lever positions'''
		+
		+	Shift positions for TH400 TH400.pdf‎

@@ Line 9: / Line 9: @@
 Keep oil cool
-When changing oil, disconnect top hose from oil cooler and run engine until oil stops draining. When refilling use Dextron II ATF. Fill to top mark then run engine, keep alternately topping up and running engine until oil comes up to bottom mark. Oil level will gradually come up to top mark after engine has been stopped for some time.
+When changing oil, disconnect top hose from oil cooler and run engine until oil stops draining, shut down engine and reconnect hose. When refilling use Dextron II ATF. Fill to top mark then run engine, keep alternately topping up and running engine until oil comes up to bottom mark. Oil level will gradually come up to top mark after engine has been stopped for some time.
 In event of failure take the unit to Newbury Auto Transmissions in Boundary Road

← Older revision		Revision as of 17:13, 8 May 2013
Line 8:		Line 8:

	Keep oil cool		Keep oil cool
		+
		+	When changing oil, disconnect top hose from oil cooler and run engine until oil stops draining. When refilling use Dextron II ATF. Fill to top mark then run engine, keep alternately topping up and running engine until oil comes up to bottom mark. Oil level will gradually come up to top mark after engine has been stopped for some time.

	In event of failure take the unit to Newbury Auto Transmissions in Boundary Road		In event of failure take the unit to Newbury Auto Transmissions in Boundary Road