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help Identifying Carbs

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help Identifying Carbs
#1
WartHog79 Kelley Swenson
Portland, OR, USA   USA
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Can any help me indemnify these carbs? I'm looking to do some research on rebuilding them!
Thanks,KELLEY


*1979 MGB


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Re: help Identifying Carbs
#2
grn78rd Avatar
grn78rd Jon Clark
Summerfield, NC, USA   USA
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1971 MG MGB MkII "Mistake"
1978 MG MGB
SU. HIF-4. Should be a tag on them someplace indicating AUD493, 550 or 630

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Re: help Identifying Carbs
#3
ghnl Avatar
ghnl Eric Russell
Mebane, NC, USA   USA
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1961 MG MGA "Calvin"
Lots of pictures here: Joe Curto, SU Carbs


Eric Russell ~ Mebane, NC
1961 MGA #61, 1981 Alfa Romeo GTV6, 1984 Alfa Romeo Spider, 1991 Honda ST1100

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Re: help Identifying Carbs
#4
WartHog79 Kelley Swenson
Portland, OR, USA   USA
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Thanks! I'll look for the tag when I get the car back this week. Any suggestions on resources for the rebuild? I'm also going to be doing a distributor rebuild...
Thanks again,
Kelley


*1979 MGB

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Re: help Identifying Carbs
#5
ohlord Avatar
ohlord Platinum Member Rob C
A tiny Island off the coast of Washington State, N.W., USA   USA
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1957 Land Rover Series I "EYEYIYI"
1957 Land Rover Series I "OVRLND"
1971 MG MGB
1971 MG MGB "Bedouin 2"    & more
Joe mentioned above for parts hif4

Jeff at advanced distributor ship it off and have him recurve and rebuild it.


LNDRVR4X4.COM
Home of Project "INCARN8'


1957 Series 1 Land Rover electric VEHICLE CONVERSION

FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED

RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972

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Re: help Identifying Carbs
#6
WartHog79 Kelley Swenson
Portland, OR, USA   USA
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Thanks! I'll check both out. I was looking forward to attempting the distributor rebuild myself, but it sounds like maybe I wont be able to do that...?


*1979 MGB

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Re: help Identifying Carbs
#7
ohlord Avatar
ohlord Platinum Member Rob C
A tiny Island off the coast of Washington State, N.W., USA   USA
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1957 Land Rover Series I "EYEYIYI"
1957 Land Rover Series I "OVRLND"
1971 MG MGB
1971 MG MGB "Bedouin 2"    & more
Hif4 carbs are easy parts swap rebuilds and adjustment,
Distributor rebuild takes more than parts swapping,not that it cn't be done and renewd but Jeff has the machines and tools and springs,and weights and makes them tuned to modern fuels and state of tune the engine build demands. Better than new.


LNDRVR4X4.COM
Home of Project "INCARN8'


1957 Series 1 Land Rover electric VEHICLE CONVERSION

FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED

RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972

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Re: help Identifying Carbs
#8
riley1489 Avatar
riley1489 Gold Member Bruce H
Great White North, QC, Canada   CAN
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1953 Jaguar XK120
1959 Riley 1.5 "King George"
1973 MG MGB
Welcome Kelley.
Good advice offered. Not knowing your skill level, however the carburetors can be refreshed by yourself, the distributor is an whole other animal. Jeff can & will serve you well.
The identity tag for the carburetor type is a a small rectangular tag with numbers on it fixed to one of the dashpot fasteners.

Bruce


Life's most persistent and urgent question is, "What are you doing for others?"

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Re: help Identifying Carbs
#9
tahoe36c Avatar
tahoe36c Paul Hruza
Panama City, FL, USA   USA
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1969 MG MGC GT "Little Red Rocket..."
1972 MG MGB GT "Tiny Dancer"
2002 Harley-Davidson Dyna
Kelly,

I have not rebuilt HIF carbs so am not so familiar with them as I am the HS4/6. I believe these have the throttle valve spindle bushings just like the HS4. I would recommend sending the stripped down carbs to Mr. Curto and have him line ream out the old bushings and install new ones for you. This will eliminate any vacuum leak caused by worn shafts/bushings. You can do the rest of the rebuild yourself. I just had the HS6 carbs for my MGC done by Mr. Curto. The cost for the new shafts/bushings/throttle valves was about $125. He sent me the rest of the kit to complete the rebuild. The grand total (including the rebuild kits/bushing & shaft installation/shipping) was just under $300 as I remember.

The engine now purrs like a kitten...

Paul


Those who confuse Burro and Burrow don't know their @ss from a hole in the ground...

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Re: help Identifying Carbs
#10
ErnieY Avatar
ErnieY Ernie Y
Albatera, Alicante, Spain   ESP
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1976 MG MGB GT
The tags for the carbs would normally be under the outer cover bolts but more than half the time they seem to be missing.

HIF's are well known for their long life and do not suffer the same degree of shaft wear as the earlier HS so may well not need a rebuild beyond what you can do yourself with the available service kit.

As an example mine have over 320,000 miles on them but apart from new jets, needles, and plain butterflies close to 30 years and at approx. 100,000 miles have essentially not been touched since.


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Re: help Identifying Carbs
#11
WartHog79 Kelley Swenson
Portland, OR, USA   USA
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Thanks Paul, Ernie, bruce, Rob, Jon, And Eric!

Any recommendations on which rebuild is first Carbs or Distributor? Joe & Jeff both look great!

Kelley


*1979 MGB

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Re: help Identifying Carbs
#12
Chalky Avatar
Chalky David White
Coventry, Warwickshire, UK   GBR
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1979 MG MGB GT
In reply to # 2973782 by WartHog79 Thanks! I'll look for the tag when I get the car back this week. Any suggestions on resources for the rebuild? I'm also going to be doing a distributor rebuild...
Thanks again,
Kelley

You could always try SU. http://sucarb.co.uk/ I've just revuilt my HIF4s using their kit. It comes with a complete set of parts and a detailed instruction leaflet. Whilst you're at it change the throttle discs for solid ones without the over run valves. They breathe better and you fix a lot of idle speed issues at the same time.

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Re: help Identifying Carbs
#13
tahoe36c Avatar
tahoe36c Paul Hruza
Panama City, FL, USA   USA
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1969 MG MGC GT "Little Red Rocket..."
1972 MG MGB GT "Tiny Dancer"
2002 Harley-Davidson Dyna
Kelly,

There are several different kits available. Some are "minor", just gaskets and the like, some are "major" which include new shafts, throttle butterflies, etc. Just google HIF 4 rebuild kit and shop around. No pun intended against David in the above post but there is no need (nor savings) to order direct from the UK...

Paul

P.S. Remember that an HIF is an HIF (other than your specific jet/needle). It doesn't matter what engine it is mounted to. If you have any doubts call the supplier before making the purchase.


Those who confuse Burro and Burrow don't know their @ss from a hole in the ground...

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Re: help Identifying Carbs
#14
Jim K Avatar
Jim K James A. Krasnansky
Liberty, KY, USA   USA
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1970 MG MGB GT "Chloe"
1971 MG MGB GT "Roscoe"
1972 MG MGB "Camilla"
Most recommend getting the electrics to spec before messing with (tuning) the carbs.


Jim K is a grease-stained wretch

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