• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

MGB Hif’s Rear leaking gas

bobnorway

Freshman Member
Offline
Did a carb change from a single Strom on my 77. Rebuilt HIF’s and changed all the stuff needed but when I turned pump on rear carb leaking gas. Front seemed ok.....float problem? I did check for crackers before installing and seemed fine. Put in new needles with rubber tip. Might be stuck? Also do carbs have to come off ? :(
Bob
 
Last edited by a moderator:

JPSmit

Moderator
Staff member
Silver
Country flag
Offline
Bob, welcome and sorry to hear of this. At this point literally the only advice I can offer is point out that you have posted it in the thread that helps people navigate the software of the forum itself. So, pretty much no chance you are going to get an answer. (except mine :grin: )

Can you repost in the forum of the make of your car? Or let us know the make and I am sure a moderator can move it.

Good Luck!
 

Basil

Administrator
Boss
Offline
Bob, as JP said, you posted your question in the wrong forum. The forum you posted in is for asking for help, as JP said, in how too navigate the forum. Since I see in your profile you have a 77MGB, I'm assuming this should be in the MG forum, so I'm moving it. When you next see this thread, it will be in the MG forum. I'll leave a pointed in the original forum to direct people to the thread in the MG forum.
 

Mickey Richaud

Moderator
Staff member
Platinum
Country flag
Offline
Hi, Bob, and welcome!

Yes, they do have to be removed to check floats, etc. - a disadvantage of HIF carbs.

Mickey
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Try *GENTLY tapping on the carb body with a screwdriver handle as the pump is running. Sometimes the needle gets a bit out of alignment and a tap or two may seat it... if not there's no choice but to disassemble the thing and find out what's wrong.
 

PAUL161

Great Pumpkin
Silver
Country flag
Offline
Bob, Who's float valves did you replace the old ones with? I've had problems with the newer "Gross" valves bypassing, (not seating right). PJ
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Gross Valves are evil and wrong. o back to brass.
 

Tybalt

Jedi Trainee
Country flag
Offline
It's somewhat unlikely but I have seen HIFs leak from where the counterbored screw that holds the float pin in place fits into the carb body. As for Gross jets, not a fan of those myself.
 

dklawson

Yoda
Offline
I removed Grose Jets from my cars also. I have had them stick open and stick closed but never work correctly. I now run the Viton tipped traditional float valves.

HOWEVER, recently I bought generic Viton tipped float valve kits from one of the usual sources. The brass seats for the needles were poorly made. Neither sealed properly. I re-used the old brass seats with the new needles and all seems well. Keep that in mind when you order your float valves. Get the genuine Burlen/SU parts if possible.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
A bit of personal opinion now: get the carb parts from joe Curto.
 

Mickey Richaud

Moderator
Staff member
Platinum
Country flag
Offline

maynard

Jedi Knight
Country flag
Offline
Sorry to hear of your troubles. Consider joining the Chicagoland MG Club (chicagolandmgclub.com), if you haven't already done so. We are a wealth of mostly correct knowledge, and have several members in Downer's Grove.

We are having a British Car Swap Meet this Sunday at the DuPage County Fairgrounds.
 
Similar threads
Thread starter Title Forum Replies Date
GBRandy MGB HIF float chamber seals MG 6
R 1275 engine with SU HIF single carb Spridgets 9
R HIF Carbureter British Motor Corp 2
M SU HIF 44 crab problem Rover / Land Rover 5
wkilleffer MGB Anyone still use HIF SU carbs? MG 12
RickB General Tech Need pictures showing how to connect choke on HIF carbs. MG 2
B TR6 Hitachi HS6 HIF rebuild/TR6 Triumph 1
PAUL161 72 HIF Butterfly - Moss Part Number MG 15
PAUL161 HIF Throttle Disc MG 10
A HIF tweaking Spridgets 11
M HIF 44 Choke Spridgets 10
H HS4 to HIF inlet manifold question MG 2
PAUL161 Doc, Tony, HIF SU434 Carbs Vers. SU493s . MG 4
PAUL161 SU Carbs HIF-4 # AUD 434s What are they off of ? MG 5
PAUL161 HIF-4 Question ? Need some answers! FOUND ANSWERS! MG 0
PAUL161 Question -- 25D-4 vac hose connection with HIF-4s MG 7
A new guy-74 B, HIF question MG 15
D HIF carb info request MG 3
Moose33 newbie question about HIF's MG 2
Thor What Needle Used for HIF-6 on 1500 Spridgets 3
Thor HIF-6 Needle/Jet Recommends for 1500 Spridgets 0
W MGB 73 MGB HIF Hoses MG 8
A HIF 4 Carbs MG 6
A Rear Seat Bottom/Frame for 1950 Ford Prefect Other British Cars 12
Healey Nut Rear Wiring Routing Austin Healey 2
R TR6 Rear suspension droop restraint Triumph 0
E GT6 Triumph GT6 MKIII rear hatch springs Triumph 2
drooartz Rebuilding rear axle Spridgets 10
S TR2/3/3A rear main seal is leaking Triumph 13
J TR2/3/3A TR3 Rear seat Triumph 11
T crankshaft (rear) bearing leak Spridgets 2
G For Sale: Triumph TR2, TR3, TR3A, TR3B Factory Steel Hardtop, New Rear window, Partial Bracket Set Triumph Classifieds 2
C TR4/4A Advice for grafting TR6 frame front to TR4A frame rear Triumph 14
5 TR2/3/3A Seized rear brakes Triumph 9
fpstude TR4/4A Replacing Rear Flexible Brake Hoses on TR4A w/ IRS Triumph 11
M TR2/3/3A Difficulty Adjusting Tr3A Rear Brakes Triumph 12
chicken BJ7 Rear Number Plate Mounting Austin Healey 3
Healey Nut Rear Wheel Cylinder Mounting Austin Healey 4
S Rear Wing Fit Austin Healey 4
chicken BJ7 Rear Quarter Panels Austin Healey 3
M For sale rear wings Tr6 Triumph Classifieds 3
Healey Nut BT7 Rear Suspension Austin Healey 15
FlyingCat Wanted 1980 Spitfire Rear Bumper Triumph Classifieds 2
M Have a pair of tr6 rear wings Triumph Classifieds 0
D MGB Rear Suspension Damper Link Arm MG 2
S Rear End Noises Spridgets 11
Jeepster Rear Brakes Adjustment Austin Healey 6
M Wanted TR6 Rear Bumper impact Brackets Triumph Classifieds 0
M TR2/3/3A Speedy Sleeve Repair Sleeves for Rear Axle Pinion and Half Shafts Triumph 1
E TR6 74 TR6 - Rear and windshield frame color Triumph 2

Similar threads

Top