• 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

Soft Top Weather proofing on100 4

TonyR

Senior Member
Offline
Are there any secrets to stop the rain coming in over the top of the windscreen when the soft top is fitted?
Do you guys fit a foam gasket? or something?
We have had the wettest summer for 100 years in the UK.....and don't I know it!
 

Johnny

Darth Vader
Offline
I've heard that by affixing a double ended threaded 1/8" shaft from the top bow to the center of the dash works wonders. It's similar to what's on MGB's. They can be purchased from any good marine shop. For Healey's you just place a coachman's hoop to the top bow then a lever to the end of the threaded rod screwed into the dash. They even come in chrome or stainless.
 

glemon

Yoda
Country flag
Offline
If you fix the seal on the top you will soon discover all the other places it leaks...I never could get the rubber at the bottom of the windscreen to seal worth a darn. At highway speeds the water channels up the low spots on both sides between bonnet and fender and through the part that doesn't seal well on the windshield frame.

But I digress, I think if the top is too tight it tends to pull the header rail back and away from the windscreen, I put some of the square section foamy weahterstrip in there (on the header rail of the convertible top) and it kept out the worst of it.

Greg Lemon
 

andrea

Jedi Knight
Bronze
Country flag
Offline
Hi Johnny
My solution with my MG TD is when the bad whether beginning
put from the windscreen and the front top one long strong black
adhesive tape this avoid that water came in trough the split
aided by the car speed-obvious this is a extreme and temporally
solution but works
Cheers
Andrea
 

Bob Hughes

Luke Skywalker
Country flag
Offline
Have you got all the rubber seals in place and are they in the correct place and in good condition, I am assuming that it is much the same as the 3000s.

Having said all that, I have just put the soft top on my BJ7 for the second time in two years and I have not yet fully tested it in a good storm but last year the heavens opened a bit on my way home from the Goodwood Revival and all held well. - New rubber seals and I used silicone sealant under the aluminium against the bow and again to fix the rubber seal to the aluminium. The inner seal fixed to the back of the aluminium in the normal way.

:cheers:

Bob
 

glemon

Yoda
Country flag
Offline
The seals may be similar to the roadster six cylinders, but the clamps on the 100 are on the corners of the windshield, so don't provide much force to pull the header rail to the top of the windshield in the middle. If the wood warps or the top is too tight, or the top bows bent out of shape in some way it will not seal well, everything has to be just right to get a good seal if you aren't inclined to put some extra rubber or foam material in there.
 

roscoe

Jedi Knight
Silver
Country flag
Offline
I used one of the captured nuts that secures the mirror to the dash and thread a forked clevis on. I made a thin cable out of stainless aircraft cable put a swaged loop on both ends and ran it from the clevis (held with, what else, a clevis pin) to the top bow where I affixed a small tab that the cable loop was attached to. I install it with the clevis almost all the way unthreaded and it takes just a few turns to tighten the cable. I didn't do this for a water tight seal, but rather as a safety because I never want to experience my top catches failing at 80 mph on the freeway (not that I would ever drive that fast mind you. I'm not sure if you can see it in my signature photo. I get water under the bottom seal, but not on the top with a foam weather strip attached to the bow.
 
Country flag
Offline
My solution is somewhat similar to Roscoe's:

I started with a terminal that is attached to the center of the top bow by a wood screw. This connects--via an appropriate length of 1/8" diameter SS 1x19 wire--to a threaded rod terminal that passes through a 1/4" hole drilled in the scuttle just behind the rear view mirror.

After erecting the top I insert the threaded terminal through the hole, reach under the dash and tighten a knurled nut to pull the bow tight against the windshield. This stops the bow from pulling away from the windshield at speed and effectively prevents leaks through the seal.

I purchased the terminals and wire at a West Marine store and swedged the fittings onto the wire using dies and tools that the store provides.
 

pan

Jedi Warrior
Country flag
Offline
Hey, it's only water! You should try driving in Queensland's sub-tropical rain.
I will admit the seal on my soft top seems OK, it's the wet right knee that bothers me.
 
Country flag
Offline
Pan--

It's not so much the water--plenty still comes in from other places-but rather, as Roscoe points out. it's about keeping the top from flying off at speed.

BTW if you guys drove on the correct side of the road your right knee would be dry.
 
OP
T

TonyR

Senior Member
Offline
I have slotted brackets fitted to each side of the windscreen stanchions with plates containing a small diameter hole fitted at each side of the soft top frame. These must interface somehow.
There is a flat plate with a hole in the centre of the frame also. I figure these are used as extra security but fixing pieces are missing. I will try to post photos but unsure how to do that!
 
Similar threads
Thread starter Title Forum Replies Date
C 100/6 BN4 Soft Top Frame Austin Healey 7
J TR6 Hardtop/Soft Top Installation Triumph 2
W TR6 Tr6 soft top lnstall Triumph 5
CharlesBN1 BN1 Soft Top installation - need advice! Austin Healey 3
Bayless Need soft top for Morris Minor Other British Cars 5
D TR2/3/3A Fitting the hood. Soft top. Triumph 6
Graham H TR2/3/3A TR3A soft top Triumph 4
D TR6 Soft Top Selection 1976 Triumph TR6 Triumph 5
B Soft Top Boot Cover - BJ7 Austin Healey 5
H Soft Top Straps Spridgets 2
Drone Dog BT7 soft top front bow seal Austin Healey 0
warwick-steve BT7 soft top frame location Austin Healey 6
I BJ8 soft top frame dimensions Austin Healey 4
C Top frame pinching soft top - BJ8 Austin Healey 6
R BT7 soft top [hood] question Austin Healey 4
Desert Rat Bugeye soft top Spridgets 2
Marla TR4/4A Soft top frame Triumph 13
Marla TR4/4A Soft top success Triumph 1
Lutz Kramer Soft top zip window Austin Healey 0
N TR6 found a Soft top frame from a 1972 for sale Triumph 2
John Turney Longbridge BN4 Soft Top Austin Healey 9
tomshobby New way to Install gasket between soft top and windscreen frame. Spridgets 2
sundown TR6 soft top Triumph 3
maxwedge5281 soft top installation for 63 bj7 Austin Healey 1
R 100-4 soft top Austin Healey 5
TR6oldtimer TR6 TR6 soft top frame not aligning with windows Triumph 1
D TR6 76 TR6 Soft Top Triumph 2
A Serious help needed !!!! BJ7 Installing a new soft top Austin Healey 9
T TR2/3/3A Can someone tell me height of roll bar that will allow soft top on TR3A? Triumph 3
andrea LONGBRIDGE cars SOFT TOP -MOD safe water seapage Austin Healey 16
Jeepster Folding soft top frame Austin Healey 7
S Healey BN7 Soft Top installation instructions needed Austin Healey 6
M Installing soft top Spridgets 7
W TR6 how to lowering 1972 TR6 soft top Triumph 4
P help: trick to snap and unsnap soft top ? Triumph 11
af3683 TR2/3/3A Correct Procedure to Raise TR3 Soft Top Triumph 7
af3683 TR2/3/3A How to Repair Small Holes in TR-3 Soft Top Triumph 6
A Soft Top cover and Tonneau BJ8 Austin Healey 3
T soft top frame Triumph 2
ScottTR6 TR6 Advice for new TR6 Soft Top Triumph 9
B Rear soft top bow on a BJ7 Austin Healey 15
doughairfield TR4/4A TR4 Soft top to surrey top Triumph 4
I Suggestions for new Bugeye soft top? Spridgets 3
Darrell_Walker TR4/4A Folding a TR4A soft top Triumph 15
Nelson Fitting [stretching] new soft top Spridgets 6
memphis Soft top to window adjustment? Austin Healey 32
M Soft top repair MG 2
B BJ7 & BJ8 soft top rear seal Austin Healey 2
PAUL161 Cleaning soft top windows. MG 0
B BJ7 or BJ8 soft top replacement Austin Healey 7

Similar threads

Top