• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

58 Nash Metropolitan valve clearance?

doc50

Jedi Trainee
Offline
Question for those more knowledgable: My book says valve clearance for my 1500 is .021
In another place it says valve clearance is .015

Anyone have the right clearance?

Thanks,

Thom
73 Midget
58 Metro
 

dklawson

Yoda
Offline
The MGA documentation I looked at says that the clearance on a cold 1500 should be 0.015".

Perhaps the Nash application is a little different but if you have standard rocker arms I cannot see why the clearance would jump to 0.021".
 
OP
doc50

doc50

Jedi Trainee
Offline
Thanks for the input, Doug. Is the MGA 1500 the same engine? I didn't know that! I was also surprised that the 58 metro (1500) has a bigger engine than my 73 Midget (1275).

Yes, I think the 021. is a misprint. I'll go with .015.

Thom
 

dklawson

Yoda
Offline
The later Nash, MGA, and MGB all have "B-Series" engines. Your Spridget will have an "A-Series" engine.

I don't know a lot about the Nash but it is my understanding that they used engines shared with the Austin marque. Towards the end of production they were using BMC B-series engines of 1500cc. These were probably tuned differently than the MGA but shared a lot with it.
 
OP
doc50

doc50

Jedi Trainee
Offline
Thanks, good info. So the way I know the Met has a 1500 engine....It says 1500 in a big plate that's part of the casting at the front left side down low. They REALLY wanted people to know that it is a 1500!

I'm thinking of swapping out the nice HS2s I just put on the Midget and putting them on the Met. IMO, 1500 needs more fuel than 1275.

Lastly, so even though the Midget is 73, it has an earlier model engine?

Thom
 

dklawson

Yoda
Offline
Lastly, so even though the Midget is 73, it has an earlier model engine?

If you are thinking A- and B-Series are sequential... I don't think they are but I am not a historian on Austin and BMC engines. It is my understanding that both A- and B-Series engines started in the early to mid-1950s. The A-series started with a small 803cc displacement while the B-Series was larger and started with 1200cc. Both grew and evolved. The A-Series continued as the A+ engine all the way up to the year 2000.

Your 1275 Spridget engine was introduced shortly after the 1275 transverse A-Series was used in the Mini.

I doubt you can "just" put the HS2s on the Metro B-Series. I am confident the port spacing is too wide to take the A-Series parts. I anticipate you will find that MGA and MGB manifolds would fit the head better. The MGA would have used H4 carbs while the MGB (up to the early '70s) used twin HS4 carbs. The H4 and HS4 are bigger than the HS2s on your Spridget. While dual HS2 carbs may help the Metro, the larger HS4s may help more.

Message boards more focused on the Metro may have a lot more information on what parts are interchangeable and what upgrades/swaps work best to improve performance.
 
OP
doc50

doc50

Jedi Trainee
Offline
Doug, thanks again for all your input. I will check out the differences noted in your post.

Thom
 
Similar threads
Thread starter Title Forum Replies Date
H Nash Metropolitan--It is British--you know! Other British Cars 9
P Nash Metropolitan Other British Cars 5
doc50 NASH METROPOLITAN trans capacity? Other British Cars 0
Gliderman8 Nash Metropolitan Spotted 3
longbridgehealey 1961 Nash Metropolitan Spotted 2
J 1957 Nash Metropolitan Heater Parts Other British Cars 6
T Using Midget Suspension parts on Nash Metropolitan MG 10
JPSmit Nash Metropolitan Other Cars 2
aeronca65t Nash Metropolitan Other British Cars 8
D Nash Metropolitan steering rack Other British Cars 1
W Nash Healey Austin Healey 5
W For Sale 1954 Nash-Healey Le Mans Coupe Other British Classifieds 2
Joe_Healey 1952 Nash Healey Lightweight Austin Healey 12
doc50 Nash Metro Positive to Negative Ground Other British Cars 2
doc50 1958 Nash metro door questions... Other British Cars 6
doc50 Nash metro steering box question Other British Cars 1
doc50 Nash Metroplitan trans swap? Other British Cars 33
doc50 Nash Metro w/MGA 1500 discrepancy... Other British Cars 2
doc50 Nash Metro? Other Cars 17
TRMark Nash-Healey on Ebay Other British Cars 6
Mickey Richaud Nash Airflyte Other Cars 7
HealeyRick Tickford Nash-Healey Austin Healey 6
H Panelcraft Nash Healeys on eBay Austin Healey 6
aeronca65t Ignored Jag and Nash Spotted 2
NutmegCT 1956 Nash Other Cars 3
TRMark Nash Healey on Ebay Other British Cars 2
E Red Nash Healey coupe Spotted 8
JFeher Nash Healy @ AACA Hershey car shoe Spotted 2
Frankenhealey Nasty Nash Austin Healey 1
S The secret love child of a Mini and a Nash! Other British Cars 15
BIBBER YOU CAN FINALLY OWN THAT NASH HEALEY FOR JUST $95 Other British Cars 8
Editor_Reid Nash Healey Review on Hagerty Website Austin Healey 4
DART Nash-Healey Collection Other British Cars 1
78Z Here's an interesting one - Nash Healey COUPE Other Cars 12
L METROPOLITAN PARTS Other British Cars 0
doc50 For Sale 1958 Metropolitan Other British Classifieds 0
doc50 58 Metropolitan Steering Box Leaks Other British Cars 0
doc50 Su carbs for a Metropolitan? Other British Cars 1
doc50 1958 Metropolitan Progress Other British Cars 4
doc50 Mash Metropolitan Generator testing Other British Cars 1
Steve P. For Sale Metropolitan engine and parts Other British Classifieds 0
NutmegCT Metropolitan? Other Cars 20
E The Sprite and the Metropolitan Spridgets 6
Mickey Richaud Metropolitan Spotted 1
Steve P. MGA Metropolitan 1500 engine same as MGA??? MG 4
78Z Hudson Metropolitan - I never knew! Other Cars 1
R Valve Drain Pipe Austin Healey 13
R T-Series Valve gap for an MGTD 1953. MG 5
6 Valve Oil Seals Spridgets 10
K TR2/3/3A Cylinder head removal and valve adjustment Triumph 2

Similar threads

Top