General Category => Frame, Tank, Seat, Controls, Etc => Topic started by: Bruce on March 05, 2014, 05:20:33 AM

Title: seat mount
Post by: Bruce on March 05, 2014, 05:20:33 AM
Anyone have a picture of what mounts the front of the seat? Before I get this covered I kinda need a look
Title: Re: seat mount
Post by: Ricks on March 05, 2014, 06:08:11 AM
Carriage bolt. Slips into seat pan and secures to the seat leaf spring.
Title: Re: seat mount
Post by: pd on March 05, 2014, 06:24:28 AM
Bruce ,

Here's a pic of my seat before I cleaned it . You can see where the bolt goes and the spacer . The spacer simply keeps the seat from riding on the frame leaf spring .

(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1578.jpg)
Title: Re: seat mount
Post by: Bruce on March 05, 2014, 11:05:58 AM
thanks guys...that what I thought...there had to be a spacer too.
Title: Re: seat mount
Post by: admin on March 05, 2014, 01:04:32 PM
Not to say there shouldn't be a spacer, but I have never seen one on any bike I disassembled. 
Pete, post the spec on the one you have.
Title: Re: seat mount
Post by: Bruce on March 05, 2014, 01:56:40 PM
My seat would hit the spring bar without a spacer... I'd say something has to be there
Title: Re: seat mount
Post by: Mike Sal on March 05, 2014, 03:29:36 PM
I'm pretty sure mine has a spacer.  My seat is just like Pete's.
Mike Sal
Title: Re: seat mount
Post by: Jeff L on March 05, 2014, 03:42:38 PM
My Seat Pan looks the same.I mounted the seat without the Spacer ( didn't know there was supposed to have one).It doesn't hit the Leaf,but is extremely close.Be a simple thing to make.
Title: Re: seat mount
Post by: WillH on March 05, 2014, 03:56:27 PM
Bruce ,

Here's a pic of my seat before I cleaned it . You can see where the bolt goes and the spacer . The spacer simply keeps the seat from riding on the frame leaf spring .

(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1578.jpg)

Is that an original cover?

Will
Title: Re: seat mount
Post by: admin on March 05, 2014, 04:37:37 PM
That is a late model seat with plastic cover.  I think the change over was around 1956.  Most of the ones left these days are hard and cracked by age.
Title: Re: seat mount
Post by: admin on March 05, 2014, 04:40:29 PM
My Seat Pan looks the same.I mounted the seat without the Spacer ( didn't know there was supposed to have one).It doesn't hit the Leaf,but is extremely close.Be a simple thing to make.

I wonder if the spacer was only used on the late, plastic seat covers, as the leather hugs the seat pan closer on the earlier models.
Title: Re: seat mount
Post by: WillH on March 05, 2014, 04:51:36 PM
That is a late model seat with plastic cover.  I think the change over was around 1956.  Most of the ones left these days are hard and cracked by age.

Two questions; is this pan the same as the leather covered one? Was there a smaller seat on earlier bikes?

Will
Title: Re: seat mount
Post by: admin on March 05, 2014, 04:55:31 PM
Same seat pans, but without the holes drilled for the rivets to hold the leather on.

The very early bikes did use bike seats; I think they were made by Messenger.
Title: Re: seat mount
Post by: Mike Sal on March 05, 2014, 06:48:37 PM
I think there were a total of 3 seat styles used over the years.  According to the wollard book, Paul Treen sat on a pieced of construction paper & traced the outline of his rump on it & sent it to the seat company to make the seat tooling.
Mike Sal
Title: Re: seat mount
Post by: pd on March 05, 2014, 08:37:46 PM
Rick ,

I don't have the bike here to measure the spacer , but , as I recall it's about 3/4" long and fairly heavy wall type material .

I don't see it listed in the M manual . The bolt seemed as original as the others , as did the spacer . I'm inclined to think it came from Simplex the way I bought it some 49 years ago .

Will ,

Yes . It's the original cover . Here's a cleaned version :

(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1589.jpg)

(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1588.jpg)

Pete . :)
Title: Re: seat mount
Post by: Ricks on March 06, 2014, 04:13:32 AM
Pete, is your seat cracked around the edges?  I have one that has a split around the edge, about 2" long.
Title: Re: seat mount
Post by: Mike Sal on March 06, 2014, 10:28:33 AM
My seat has a very small split on the side, more from the bike being dropped on it's side somewhere along the line rather than the material failing.  It's not too noticeable.  I figure if the original vinyl ever goes to pot, I'll re-do it in leather, but the chances are the vinyl will out live me. 
Mike Sal
Title: Re: seat mount
Post by: pd on March 06, 2014, 11:05:20 AM
Pete, is your seat cracked around the edges?  I have one that has a split around the edge, about 2" long.

Rick ,

Yes , the cover has been what I think 'worn away' on the right side .
I noticed when I kick the lever that my leg rubs the edge of the seat , exactly where the cover is 'gone' .

You can see along the right rear 'fat' part of the seat the pan is sticking through .

(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1588.jpg)

Pete . :)