If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
c3 transmission question
> I have had the xmission oil changed twice, last one about8-10 years Boy Scouts of America, I seems pretty obvious that you need to change the transmission fluid. It's probably evaporated some and gumming up and something is sticking. Ed |
Ads |
#2
|
|||
|
|||
c3 transmission question
spud wrote:
>> I have had the xmission oil changed twice, last one about8-10 years > > > Boy Scouts of America, > > I seems pretty obvious that you need to change the transmission fluid. > It's probably evaporated some and gumming up and something is sticking. > > Ed > > Good first step that's worked for me. Use the correct fluid (important in an older transmission to get the correct amount of abrasive additive). Change the filter. -- pj |
#3
|
|||
|
|||
c3 transmission question
On Apr 12, 9:17*pm, pj > wrote:
> spud wrote: > >> I have had the xmission oil changed twice, last one about8-10 years > > > Boy Scouts of America, > > > I seems pretty obvious that you need to change the transmission fluid. > > It's probably evaporated some and gumming up and something is sticking. > > > Ed > > Good first step that's worked for me. > > Use the correct fluid (important in an older > transmission to get the correct amount of > abrasive additive). > > Change the filter. > > -- > pj Do you think it would benefit from adding something into it as someone else suggested BEFORE I change the fluid and filter - maybe run it for a few hundred klicks or so first? Today it is about 45 F or so and sunny and there is no problem with it at all. |
#4
|
|||
|
|||
c3 transmission question
Do you think it would benefit from adding something into it as someone else suggested BEFORE I change the fluid and filter - maybe run it for a few hundred klicks or so first? I agree with PDDeen. Those fix-its in a can can also do damage. Have the fluid changed by a good transmisson shop and make sure they drain the torque converter. Spud |
#5
|
|||
|
|||
c3 transmission question
On Apr 13, 6:20*pm, "spud" > wrote:
> Do you think it would benefit from adding something into it as someone > else suggested BEFORE I change the fluid and filter - maybe run it for > a few hundred klicks or so first? > > I agree with PDDeen. * Those fix-its in a can can also do damage. * Have the > fluid changed by a good transmisson shop and make sure they drain the torque > converter. > > Spud OK - How does one ensure they drain the torque converter? Is this the sort of thing one can do at home? I may have mentioned I have a lot of t hings I have to do to the beast anyway - like brake caliper rebuilds, new composite rear spring, shocks, etc, and I think maybe a new rad support. |
#6
|
|||
|
|||
c3 transmission question
> wrote in message ... On Apr 13, 6:20 pm, "spud" > wrote: > Do you think it would benefit from adding something into it as > someone > else suggested BEFORE I change the fluid and filter - maybe run it > for > a few hundred klicks or so first? > > I agree with PDDeen. Those fix-its in a can can also do damage. Have > the > fluid changed by a good transmisson shop and make sure they drain > the torque > converter. > > Spud #OK - How does one ensure they drain the torque converter? Is this the #sort of thing one can do at home? I may have mentioned I have a lot of #things I have to do to the beast anyway - like brake caliper #rebuilds, new composite rear spring, shocks, etc, and I think maybe a #new rad support. Three ways to drain a converter, take it out and pour out the fluid or drill a hole in it and then plug it before you refill. Most of the time you can unhook the return line while running and let it pump new fluid through the system until you get no more old fluid. Not an easy task but it works, but in most cases not necessary. |
#7
|
|||
|
|||
c3 transmission question
On Apr 14, 1:37*pm, "Dad" > wrote:
> > wrote in message > > ... > On Apr 13, 6:20 pm, "spud" > wrote: > > > Do you think it would benefit from adding something into it as > > someone > > else suggested BEFORE I change the fluid and filter - maybe run it > > for > > a few hundred klicks or so first? > > > I agree with PDDeen. Those fix-its in a can can also do damage. Have > > the > > fluid changed by a good transmisson shop and make sure they drain > > the torque > > converter. > > > Spud > > #OK - How does one ensure they drain the torque converter? Is this the > #sort of thing one can do at home? I may have mentioned I have a lot > of > #things I have to do to the beast anyway - like brake caliper > #rebuilds, new composite rear spring, shocks, etc, and I think maybe a > #new rad support. > > Three ways to drain a converter, take it out and pour out the fluid or > drill a hole in it and then plug it before you refill. Most of the > time you can unhook the return line while running and let it pump new > fluid through the system until you get no more old fluid. Not an easy > task but it works, but in most cases not necessary. I am ordering the bits and pieces I require, but how do I determine if I have a THM 350 or THM 400 to make sure I get the right parts? A 1976 automatic with L-48 engine. Thx & regards. |
#8
|
|||
|
|||
c3 transmission question
> wrote in message ... On Apr 14, 1:37 pm, "Dad" > wrote: > > wrote in message > > ... > On Apr 13, 6:20 pm, "spud" > wrote: > > > Do you think it would benefit from adding something into it as > > someone > > else suggested BEFORE I change the fluid and filter - maybe run it > > for > > a few hundred klicks or so first? > > > I agree with PDDeen. Those fix-its in a can can also do damage. > > Have > > the > > fluid changed by a good transmisson shop and make sure they drain > > the torque > > converter. > > > Spud > > #OK - How does one ensure they drain the torque converter? Is this > the > #sort of thing one can do at home? I may have mentioned I have a lot > of > #things I have to do to the beast anyway - like brake caliper > #rebuilds, new composite rear spring, shocks, etc, and I think maybe > a > #new rad support. > > Three ways to drain a converter, take it out and pour out the fluid > or > drill a hole in it and then plug it before you refill. Most of the > time you can unhook the return line while running and let it pump > new > fluid through the system until you get no more old fluid. Not an > easy > task but it works, but in most cases not necessary. I am ordering the bits and pieces I require, but how do I determine if I have a THM 350 or THM 400 to make sure I get the right parts? A 1976 automatic with L-48 engine. Thx & regards. Pan shape, 350 has one angle cut to keep it from having 90 degree corners, the 400 has 3 of the corners not square and is bigger. |
#9
|
|||
|
|||
c3 transmission question
> wrote in message ... On Apr 12, 9:17 pm, pj > wrote: > spud wrote: > >> I have had the xmission oil changed twice, last one about8-10 years > > > Boy Scouts of America, > > > I seems pretty obvious that you need to change the transmission fluid. > > It's probably evaporated some and gumming up and something is sticking. > > > Ed > > Good first step that's worked for me. > > Use the correct fluid (important in an older > transmission to get the correct amount of > abrasive additive). > > Change the filter. > > -- > pj Do you think it would benefit from adding something into it as someone else suggested BEFORE I change the fluid and filter - maybe run it for a few hundred klicks or so first? Today it is about 45 F or so and sunny and there is no problem with it at all. ________________ The Vette is laregely a "fair weather motorcar" ................... but I agree will all of the above. -W '68 roadster |
#10
|
|||
|
|||
c3 transmission question
On Apr 15, 2:12*pm, "Dad" > wrote:
> > wrote in message > > ... > On Apr 14, 1:37 pm, "Dad" > wrote: > > > > > > wrote in message > > .... > > On Apr 13, 6:20 pm, "spud" > wrote: > > > > Do you think it would benefit from adding something into it as > > > someone > > > else suggested BEFORE I change the fluid and filter - maybe run it > > > for > > > a few hundred klicks or so first? > > > > I agree with PDDeen. Those fix-its in a can can also do damage. > > > Have > > > the > > > fluid changed by a good transmisson shop and make sure they drain > > > the torque > > > converter. > > > > Spud > > > #OK - How does one ensure they drain the torque converter? Is this > > the > > #sort of thing one can do at home? I may have mentioned I have a lot > > of > > #things I have to do to the beast anyway - like brake caliper > > #rebuilds, new composite rear spring, shocks, etc, and I think maybe > > a > > #new rad support. > > > Three ways to drain a converter, take it out and pour out the fluid > > or > > drill a hole in it and then plug it before you refill. Most of the > > time you can unhook the return line while running and let it pump > > new > > fluid through the system until you get no more old fluid. Not an > > easy > > task but it works, but in most cases not necessary. > > I am ordering the bits and pieces I require, but how do I determine if > I have a THM 350 or THM 400 to make sure I get the right parts? A 1976 > automatic with L-48 engine. > > Thx & regards. > > Pan shape, 350 has one angle cut to keep it from having 90 degree > corners, the 400 has 3 of the corners not square and is bigger. Yes - thanks I checked and mine appears to be a TH350 from what I see of the pan shape. As an aside I called the dealership and they wanted $240 + tax to change the transmission fluid. I asked them what they did for that (I thought maybe some special machine flush) but that was just to drain the fluid and replace filter and gasket. They told me $80 for the filter. I checked with corvette central and a filter and gasket is $12.95 I think. Am I misunderstanding something? I can see it is a bit of a messy job, but ...... |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
c3 transmission question | [email protected][_2_] | Corvette | 0 | April 11th 09 07:01 PM |
transmission question | Nobody | 4x4 | 9 | February 1st 06 01:49 PM |
ZJ transmission question | Scott Stone | Jeep | 2 | August 4th 05 02:28 PM |
'04 Transmission Question | dicko | Ford Explorer | 4 | November 14th 04 12:40 AM |
98 Jetta: timing belt question-non-interference?/transmission fluid question | Ben867-5309 | VW water cooled | 1 | October 20th 04 03:53 PM |