holes in my transmission
- Richard Holler
- 356 Fan
- Posts: 101
- Joined: Sat Aug 04, 2018 2:04 pm
- Tag: 1963 356 S T6 coupe
- Location: Chicago, Illinois
holes in my transmission
While inspecting a bad oil leak (valve cover) which appears to have contaminated my starter, I noticed some of these holes in my tranny which look like they were drilled. What would be the purpose of this?
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1963 356 S T6 Karmann Coupe (stock engine)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
- Richard Shilling
- 356 Fan
- Posts: 790
- Joined: Sun Apr 20, 2008 12:40 pm
- Tag: Ex 356 Mechanic
- Location: Shoreline, Washington, USA
- Contact:
Re: holes in my transmission
My guess: at some point the clutch was stuck and they drilled holes to remove the bolts on the pressure plate.
Richard Shilling
1965 356C dolphingrey
1965 356C dolphingrey
- Richard Holler
- 356 Fan
- Posts: 101
- Joined: Sat Aug 04, 2018 2:04 pm
- Tag: 1963 356 S T6 coupe
- Location: Chicago, Illinois
Re: holes in my transmission
That makes sense, what solutions would there be in regards to repair or covering the holes; maybe some sort of adhesive vent cover?Richard Shilling wrote: ↑Fri May 24, 2019 12:31 pm My guess: at some point the clutch was stuck and they drilled holes to remove the bolts on the pressure plate.
1963 356 S T6 Karmann Coupe (stock engine)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
- Richard Shilling
- 356 Fan
- Posts: 790
- Joined: Sun Apr 20, 2008 12:40 pm
- Tag: Ex 356 Mechanic
- Location: Shoreline, Washington, USA
- Contact:
Re: holes in my transmission
The "right" repair. Remove engine, remove transmission. Find a vendor with an old, no good transmission case (Hello Adam), send it to a talented welder, cut pieces to fit and weld in place. Alternative "not right" repair. Carefully clean the grease and scratch the surface around the hole. Cut to shape, glue them on with epoxy to keep water and dirt out.
Richard Shilling
1965 356C dolphingrey
1965 356C dolphingrey
- Mike Wilson
- Classifieds Monitor
- Posts: 11633
- Joined: Tue Apr 15, 2008 4:37 pm
- Location: SW Los Angeles
Re: holes in my transmission
I would add that if the case is not original to your car, get a replacement case and have the gears, etc. transferred to the new case.
Mike
Mike
Mike Wilson
Lomita, CA
'63 B coupe
Lomita, CA
'63 B coupe
- Don Gale
- 356 Fan
- Posts: 1183
- Joined: Wed Jul 26, 2017 6:27 pm
- Tag: Black A's Matter
- Location: Albuquerque
- Contact:
Re: holes in my transmission
"If it aint broke, don't fix it"
1958 356A 1600 Super Sunroof Coupe
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912
Member Since 1983, #4039
"Nostalgia isn't what it used to be"
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912
Member Since 1983, #4039
"Nostalgia isn't what it used to be"
- Ron LaDow
- 356 Fan
- Posts: 8094
- Joined: Wed Mar 26, 2008 11:45 am
- Location: San Francisco
Re: holes in my transmission
+1
Looks like they've been there a while with no harm. I sure wouldn't drop the eng/trans to fix that; wait 'till they have to come out for other reasons.
Ron LaDow
www.precisionmatters.biz
www.precisionmatters.biz
- Richard Holler
- 356 Fan
- Posts: 101
- Joined: Sat Aug 04, 2018 2:04 pm
- Tag: 1963 356 S T6 coupe
- Location: Chicago, Illinois
Re: holes in my transmission
it is original and I guess it keeps the clutch cooler. I just fear debris may enter at some point. Thanks for all the insight...
1963 356 S T6 Karmann Coupe (stock engine)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
Front disc brake conversion
GDP Dual Exhaust
Momo Classic steering wheel
SMD headlights
CUlayer LED rear tails
Superleicht spec (aka missing V brace and copious amounts of Bondo)
- Mike Wilson
- Classifieds Monitor
- Posts: 11633
- Joined: Tue Apr 15, 2008 4:37 pm
- Location: SW Los Angeles
Re: holes in my transmission
Maybe cover with that aliminum tape?
Mike
Mike
Mike Wilson
Lomita, CA
'63 B coupe
Lomita, CA
'63 B coupe
- Don Gale
- 356 Fan
- Posts: 1183
- Joined: Wed Jul 26, 2017 6:27 pm
- Tag: Black A's Matter
- Location: Albuquerque
- Contact:
Re: holes in my transmission
Clean it with acetone and a wire brush. Wipe it dry, JB Weld patches of stainless mesh and call it good. appreciate the "ventilated" clutch upgrade.
1958 356A 1600 Super Sunroof Coupe
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912
Member Since 1983, #4039
"Nostalgia isn't what it used to be"
former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912
Member Since 1983, #4039
"Nostalgia isn't what it used to be"
- Ron LaDow
- 356 Fan
- Posts: 8094
- Joined: Wed Mar 26, 2008 11:45 am
- Location: San Francisco
Re: holes in my transmission
https://www.classicchevy.com/chevy-bell ... 20ProductsRichard Holler wrote: ↑Fri May 24, 2019 9:12 pm [...] I just fear debris may enter at some point. [...]
I drove my hot-rod Chev through snow, stream fords and whatever else you got in Cinti in the '60s; had no problems with debris.
Just a guess on my part, but the full-surround design was intended to assure the engine stayed there without a rear support.
(and before any wise guys point out the 9XX designs, a missing bell-housing bottom would ruin the vertical beam strength of the engine/trans assembly)
Ron LaDow
www.precisionmatters.biz
www.precisionmatters.biz