Ausmini
It is currently Mon Jul 21, 2025 7:32 am

Board index » Mini Chat » Mini Chat

All times are UTC + 10 hours




Post new topic Reply to topic  Page 1 of 1
  [ 10 posts ] 
  Print view Previous topic | Next topic 
Author Message
GundyGuy
 Post subject: Valves and Rockers
PostPosted: Sat Oct 15, 2016 11:56 am 
Offline
848cc
848cc
User avatar

Joined: Mon Nov 02, 2015 12:05 pm
Posts: 425
Location: Sunshine Coast, QLD
Well today was "Fit the new MED 1.5-1 Rockers day"
Well like usual it didn't go to plan
When i went to set the clearances i found 1 inlet valve was a little bit too short above the collet
Result was the new rocker was fouling the spring retainer before it would touch the valve
So when the valve went to open the rocker was pressing on the spring retainer first
So its off with the new and back on with the old till i sort out another head to go on
These sort of things make me want to scream :evil:

_________________
1970 MK2 Cooper S
Top
 Profile  
 
drmini in aust
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 12:29 pm 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
I put a set on a mk1 S head and had to pack them up 2mm to get adjustment

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
Top
 Profile  
 
FNQ
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 1:36 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Mar 24, 2012 1:39 pm
Posts: 585
Location: qld
I think two sets of the 1.3 mm shims from minispares etc) did the trick for me in getting geometry better if you are looking for a bought solution ... but i had to grind the angles a little further back into the shim for better all round clearance ..
Top
 Profile  
 
drmini in aust
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 2:43 pm 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
Both GR and Minis Plus have shims in 1.0 and 2.0mm.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
Top
 Profile  
 
GundyGuy
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 3:41 pm 
Offline
848cc
848cc
User avatar

Joined: Mon Nov 02, 2015 12:05 pm
Posts: 425
Location: Sunshine Coast, QLD
Everything else was fine
just that 1 inlet valve
i measured it and it was 0.030" shorter than the other 3
Was thinking of a stem cap to bring up the height
Dont want to shim up the pedestals as the rockers were near horizontal
But now i will leave it until i get another head ready and make sure the stem heights are correct

_________________
1970 MK2 Cooper S
Top
 Profile  
 
Phil 850
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 8:11 pm 
Offline
998cc
998cc

Joined: Fri Aug 30, 2013 8:59 pm
Posts: 1046
Location: Western Sydney
So don't you just need one new inlet valve ?

_________________
Find a job you love and you will never have to go to work !
Top
 Profile  
 
69k1100
 Post subject: Re: Valves and Rockers
PostPosted: Sat Oct 15, 2016 8:49 pm 
Offline
998cc
998cc

Joined: Sun Sep 04, 2011 10:46 pm
Posts: 526
Location: S.A
Or 7 shorter valves.
Top
 Profile  
 
Convertible Mini
 Post subject: Re: Valves and Rockers
PostPosted: Sun Oct 16, 2016 4:21 am 
Offline
1275cc
1275cc

Joined: Thu Dec 09, 2004 6:57 am
Posts: 3022
Location: JIMBOOMBA QLD.
You Can try using Datsun lash Caps on top of the Valve stem to give you more Valve length perhaps.

_________________
DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"
Top
 Profile  
 
GundyGuy
 Post subject: Re: Valves and Rockers
PostPosted: Sun Oct 16, 2016 6:22 am 
Offline
848cc
848cc
User avatar

Joined: Mon Nov 02, 2015 12:05 pm
Posts: 425
Location: Sunshine Coast, QLD
Convertible Mini wrote:
You Can try using Datsun lash Caps on top of the Valve stem to give you more Valve length perhaps.


What model Datsun

_________________
1970 MK2 Cooper S
Top
 Profile  
 
drmini in aust
 Post subject: Re: Valves and Rockers
PostPosted: Sun Oct 16, 2016 7:09 am 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
Darsun 1200 I think, they have 7mm valve stems.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 10 posts ] 

Board index » Mini Chat » Mini Chat

All times are UTC + 10 hours


Who is online

Users browsing this forum: Bing [Bot] and 93 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.