Trimatic No forward gears

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Hi all if any one can shed some light on this for me , vh commodore 83 202 trimatic got tyres done today and while the guy was test driving before alignment 100m down the road a bang then lost all forward gears only has reverse  is there something I can do to confirm it stuffed

• This topic was modified 5 years, 4 months ago by  Judge1 Frazer.

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

Possible cracked Servo piston Frazer..

 

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Thanks Ian is it repairable expensive I am not an auto guy so I’ll have get someone to do it

going to take pan off today and see what I see

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

Drop the pan, undo the 4 bolts from the round cover, if it hasn’t gouged up the case it’s a cheap repair.

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Anonymous wrote:

Drop the pan, undo the 4 bolts from the round cover, if it hasn’t gouged up the case it’s a cheap repair.

Hi Ian , removed the pan and cover today and all the bits came out have added photos , can this be repaired in the car or is it trans out  also would have bits gone through the trans , cheers Frazer

20181216_160022 by Frazer Russell[/url], on Flickr

20181216_160015 by Frazer Russell[/url], on Flickr

20181216_155956 by Frazer Russell[/url], on Flickr

20181216_155950 by Frazer Russell[/url], on Flickr

20181216_155945 by Frazer Russell[/url], on Flickr

20181216_155940 by Frazer Russell[/url], on Flickr

 

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

The rest of the piston should pull out, I believe there’s an upgrade one available, I’d clean the shrapnel out install the new parts and give it a crack, filter screen should have caught the bulk of it.

One of these>>

https://www.ebay.com.au/itm/Holden-Trimatic-V8-Billet-Twin-Ring-Servo-Piston/161786024456?hash=item25ab32d208:g:1cYAAOxyuOtRZn61:rk:1:pf:0

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Anonymous wrote:

The rest of the piston should pull out, I believe there’s an upgrade one available, I’d clean the shrapnel out install the new parts and give it a crack, filter screen should have caught the bulk of it. One of these>> https://www.ebay.com.au/itm/Holden-Trimatic-V8-Billet-Twin-Ring-Servo-Piston/161786024456?hash=item25ab32d208:g:1cYAAOxyuOtRZn61:rk:1:pf:0

Thanks Ian I assume it does not mater 6 cylinder not a v8 also do I have to take the plate off to get snap ring out

I appreciate your help

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

Which snap ring?

Do you mean the ring around the broken piston?

I’d drop the valve body and plate anyway to make sure there’s no shrapnel in there hiding, been a long long time since I’ve played in a Trimatic so all a bit foggy sorry.

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Thanks Ian I have found a good video on you tube the snap ring or retaining clip is to hole piston in

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

Good move Frazer, likely to get up to date info that way as well, as I said been a long time since I played with one!

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

Hi all found a second hand piston had to pull it out of another parts box my neighbour had just waiting on gaskets now

20181230_175040 by Frazer Russell[/url], on Flickr

• This reply was modified 5 years, 4 months ago by  Judge1 Frazer.

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

piston all in had to make a tool to get the old one out and to install in the my trans

20181231_144800 by Frazer Russell[/url], on Flickr

20181231_144809 by Frazer Russell[/url], on Flickr

20181231_145006 by Frazer Russell[/url], on Flickr

20181231_145017 by Frazer Russell[/url], on Flickr

• This reply was modified 5 years, 4 months ago by  Judge1 Frazer.

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

car is all alive again have forwards gears now cheers for your help Ian

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

Very welcome Frazer, happy to help when I can!

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Wow, hadn’t kept track of this thread, nice work boys, that’s why forums are good.  Nice work IJ  and Fraser I looovvve a special tool

[Judge1 FrazerParticipant new zealand1983 VB LSA MG9 6060 6 speed View build HERE Member since: February 5, 2016 Posts: 775]

VRSenator065 wrote:

Wow, hadn’t kept track of this thread, nice work boys, that’s why forums are good. Nice work IJ and Fraser I looovvve a special tool

why buy it if you can make it “right”  

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Absolutely. half the fun I think!!

[Anonymous View build HERE Member since: January 1, 1970 Posts: 0]

It’s interesting as you get older trying to remember what you made them for….

[Author]

Posts