Wilsons Sandbox

Peter,

 

Has an oil seal conversion been fitted to the rear main?

 

If so make sure the lip of the seal is actually running on the crankshaft boss. Some of the cranks were made with shorter bosses than the others and the seal conversion doesn’t place the seal in the centre of the boss but at the edge.

 

 

[b][i]Norman Verona[/i][/b]

11 Cherry Close, Royston, South Yorkshire S71 4LZ

Phone: 0044 (0)1226 728811

Mob: 0044 (0)741 9905 741

[b][i]Web: www.frenchblat.com[/i][/b]

 

[b]From:[/b] mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] [b]On Behalf Of [/b]'Peter Roberts' mgtc@comcast.net [mg-tabc] [b]Sent:[/b] 08 September 2017 20:46 [b]To:[/b] mg-tabc@yahoogroups.com [b]Subject:[/b] [mg-tabc] Oil Leaking

 

 

My engine rebuilder is in the midst of a mystery and would appreciate some help.  The engine has just finished a rebuild.  All bearings, seals, gaskets, etc. are new.

 

On a first street run the engine ran perfectly, nice and strong with no odd noises. Came up on normal heat and showed 55 lbs of oil pressure.  Lucas oil was used.

 

Brought it back to the shop and in a few minutes discovered a puddle of oil below the bell housing.  He removed the engine and inspected the rear main seal and the cam oil plug  No leaks. He examined the pan gasket, no leaks.

 

Any thoughts on where the oil is coming from?

 

_Peter

#ygrps-yiv-867758746 v\00003a* {} #ygrps-yiv-867758746 o\00003a* {} #ygrps-yiv-867758746 w\00003a* {} #ygrps-yiv-867758746 .ygrps-yiv-867758746shape {} The rear main oil seal is from Moss.  I asked your very question of my rebuilder and he replied that the lip of the seal was well within the boss.   [b]From:[/b] norman@frenchblat.com">Norman Verona [b]Sent:[/b] Friday, September 08, 2017 4:34 PM [b]To:[/b] mgtc@comcast.net">'Peter Roberts' ; mg-tabc@yahoogroups.com">mg-tabc@yahoogroups.com [b]Subject:[/b] RE: [mg-tabc] Oil Leaking   Peter,

 

Has an oil seal conversion been fitted to the rear main?

 

If so make sure the lip of the seal is actually running on the crankshaft boss. Some of the cranks were made with shorter bosses than the others and the seal conversion doesn t place the seal in the centre of the boss but at the edge.

 

 

[b][i]Norman Verona[/i][/b]

11 Cherry Close, Royston, South Yorkshire S71 4LZ

Phone: 0044 (0)1226 728811

Mob: 0044 (0)741 9905 741

[b][i]Web: www.frenchblat.com[/i][/b]

 

[b]From:[/b] mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] [b]On Behalf Of [/b]'Peter Roberts' mgtc@comcast.net [mg-tabc] [b]Sent:[/b] 08 September 2017 20:46 [b]To:[/b] mg-tabc@yahoogroups.com [b]Subject:[/b] [mg-tabc] Oil Leaking

 

 

My engine rebuilder is in the midst of a mystery and would appreciate some help.  The engine has just finished a rebuild.  All bearings, seals, gaskets, etc. are new.

 

On a first street run the engine ran perfectly, nice and strong with no odd noises. Came up on normal heat and showed 55 lbs of oil pressure.  Lucas oil was used.

 

Brought it back to the shop and in a few minutes discovered a puddle of oil below the bell housing.  He removed the engine and inspected the rear main seal and the cam oil plug  No leaks. He examined the pan gasket, no leaks.

 

Any thoughts on where the oil is coming from?

 

_Peter

Check oil galley plug Gene Roth   [b]From:[/b] mg-tabc@yahoogroups.com mg-tabc@yahoogroups.com> on behalf of 'Peter Roberts' mgtc@comcast.net [mg-tabc] mg-tabc-noreply@yahoogroups.com> [b]Sent:[/b] Friday, September 8, 2017 7:45 PM [b]To:[/b] mg-tabc@yahoogroups.com [b]Subject:[/b] [mg-tabc] Oil Leaking     My engine rebuilder is in the midst of a mystery and would appreciate some help.  The engine has just finished a rebuild.  All bearings, seals, gaskets, etc. are new.   On a first street run the engine ran perfectly, nice and strong with no odd noises. Came up on normal heat and showed 55 lbs of oil pressure.  Lucas oil was used.   Brought it back to the shop and in a few minutes discovered a puddle of oil below the bell housing.  He removed the engine and inspected the rear main seal and the cam oil plug  No leaks. He examined the pan gasket, no leaks.   Any thoughts on where the oil is coming from?   _Peter

David Edgar has a great article on rear seals in http://www.mg-tabc.org/library/ChevyRearSeal.pdf Although this article concerns the Chevy Seal there is a section near the end of the article concerning "Bench Testing" with the engine out of the car.  I followed it and quickly found my problem...have your mechanic try it.  The engine doesn't need to be running. Gene GillamSaucier, MS Sent from my iPad

Peter

Ask Norman….

benny

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