Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In


Dougted
Doug Tedford

(3 posts)

Registered:
02/05/2021 02:53PM

Main British Car:


Olds 215 timing cover seal
Posted by: Dougted
Date: February 06, 2021 09:47AM

I have an Olds 215 that I put in an MGA some years back, and I’m wondering if I have the right seal (if any) at the outer surface of the timing cover. There seems to be a seal about 1.3 inches deep in the cover, and the harmonic balancer slides in as expected, but there’s a gap between the outside diameter of the balancer shaft and the inside diameter in the opening of the timer cover. Is that normal, or am I missing an outer seal?
Thanks
Doug
IMG_4262.jpg


MGBV8
Carl Floyd
Kingsport, TN
(4034 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: Olds 215 timing cover seal
Posted by: MGBV8
Date: February 06, 2021 10:36AM

Balancer shaft? I am assuming you are referring to the end of the crankshaft, also known as the crankshaft nose or snout.

It's normal. The harmonic balancer will slide into that gap.


Dougted
Doug Tedford

(3 posts)

Registered:
02/05/2021 02:53PM

Main British Car:


Re: Olds 215 timing cover seal
Posted by: Dougted
Date: February 06, 2021 11:05AM

Thanks Carl. By “balancer shaft” I meant the part of the harmonic balancer that slides onto the crank shaft. It fills most of the space between itself and the timing cover opening it passes through. With the balancer installed, there is a small gap at the timing cover opening. Seems like dirt could get in there.


Moderator
Curtis Jacobson
Portland Oregon
(4483 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: Olds 215 timing cover seal
Posted by: Moderator
Date: February 06, 2021 04:38PM

Well... if you have enough oil leaking out, it'll keep dirt from coming in! I'm sorry... just couldn't resist.

The original Olds and Buick 215 timing covers just had a "rope seal" at the nose of the crankshaft. You may have used an aftermarket kit to install a neoprene crankshaft seal instead? Personally, I preferred to install a new Buick V6 timing cover because they feature a factory-installed neoprene seal, plus completely unworn oil pump surfaces. However, the V6 cover is a little inconvenient to use because it doesn't have timing marks where the V8 covers do. (To workaround this, I fashioned my own pointer, and I use a dial-back timing light to get measurements in degrees.) Like the V8 cover, the V6 cover doesn't have an outer seal at the harmonic balancer.


minorv8
Jukka Harkola

(214 posts)

Registered:
04/08/2009 06:50AM

Main British Car:
Morris Minor Rover V8

Re: Olds 215 timing cover seal
Posted by: minorv8
Date: February 07, 2021 01:27AM

You should have a seal fitted to the cover, be it a rope type or modern 1-piece neoprene seal. Otherwise you will have a major oil leak. The seal is fitted from inside of the cover in photo and there is only one seal. If you have a seal further in, it is loose and supposed to be fitted to the cover.


Dougted
Doug Tedford

(3 posts)

Registered:
02/05/2021 02:53PM

Main British Car:


Re: Olds 215 timing cover seal
Posted by: Dougted
Date: February 07, 2021 08:29AM

Curtis - thanks for the yuks. I asked for it

The timing cover was installed by the guy who rebuilt the motor, and it didn’t seem right when I was fitting the balancer. I’ll pull the cover and install the seal. I think it’s a felpro 15200. Will need. A new timing cover gasket too. This one is gooped.

Thanks all for your input


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6003 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Olds 215 timing cover seal
Posted by: BlownMGB-V8
Date: February 07, 2021 11:28AM

Also the 350 timing cover will work and TA makes new timing covers which have the seal installed from the outside.

Jim



MGBV8
Carl Floyd
Kingsport, TN
(4034 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: Olds 215 timing cover seal
Posted by: MGBV8
Date: February 08, 2021 10:23AM

"The original Olds and Buick 215 timing covers just had a "rope seal" at the nose of the crankshaft. You may have used an aftermarket kit to install a neoprene crankshaft seal instead?"

No kit needed. If the correct crank seal is used, it will press right in place of the rope seal from the back side. That is what I did 20 years ago.

That is what you are missing, Doug. Sorry I didn't quite get what you were asking.


roverman
Art Gertz
Winchester, CA.
(3089 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Olds 215 timing cover seal
Posted by: roverman
Date: February 24, 2021 04:52PM

As I recall, I used RV8/TR8 front seal ? Didn't 215's just have a groove to wedge the rope into ? I think I'd machine to fit a real seal. Art.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6003 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Olds 215 timing cover seal
Posted by: BlownMGB-V8
Date: February 25, 2021 08:23AM

Art, there was a stamped steel retainer pressed and staked in from the back side. Once that is removed a V6 seal fits in the original recess.

Jim


Sorry, only registered users may post in this forum.