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[Datsun 1200 encyclopedia]

Gilmer drive

(Difference between revisions)

Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode

Printable version | Disclaimers | Privacy policy | Current revision
Categories: Engine Modifications | Engine Mechanical | Forced Induction
Revision as of 12:41, 17 February 2007
Ddgonzal (Talk | contribs)

<- Previous diff		 Current revision
ddgonzal (Talk | contribs)

Line 1: Line 1:
 +A gilmer drive is a syncronous drive system using a cogged belt. They were developed by the R.H. Gilmer company and first available for sale in 1949. Timing belts are a type of gilmer belt. They make an interesting whine while the engine is running.
 +<br>{{UploadPost|2602_603460e48d4d7.jpg|495191}}
 +
 += Overview =
 +Gilmer belts differ most importantly from V-belts in that they are synchronous. They do not slip as they turn, so are suitable from driving the camshaft. They are also stronger so can turn a supercharger. They are lighter but more expensive than V-belts. A serpentine belt is a less exepensive version but is not synchronous (will still slip slight during normal usage).
 +
 +Aside from timing belts, Gilmer belts are most famously used for [[supercharger]] belts. They are also somewhat commonly used on race engines for accessory drive (driving the water pump, etc).
 +
 +Gilmer drive for water pump
 +<br>{{Album|864}} {{AlbumH|695|JPG|267}}
 +
 +Timing belt: [[Toyota 4A engine|4AGE]], [[Nissan CA Engine|CA18DE]], etc.
 +<br>{{Album|826|jpg|400}} {{AlbumH|3858|jpg|267}}
 +
 +Supercharger belt
 +<br>{{AlbumH|24190|jpg|300}} {{Album|3493}} {{Album|9590}} {{Album|12437}} {{Album|17707}}
 +
 += How To =
 +* [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=63588 DIY GILMER DRIVE A-Series]
 +
 +Using a Small block chev (SBC) kit.
 +
 +{{YouTube|8nCoqVdnboQ|Datsun 1200 gilmour drive a12}}
 +
 +{{UploadPost|16063_53e95b128c10a.jpg|458872}} {{UploadPost|16063_53e95b32ab029.jpg|458872}} {{UploadPost|16063_53e95af245ac7.jpg|458872}}
 +
 +The alternator pulley goes straight on, water pump pulley just needs the Center machined out a little and for the crank is the issue. Either take one of your spare crank pulleys get the v cut off the outside and machined with four bolt holes centered up and put together or get an adapter plate cnc for it.
 +
 +Essentially the belt Lully was machined off in a lathe, a step put in it to help centre the new pulley and drilled and tapped.
 +
 +{{UploadPost|16063_53e965ae8c4e5.jpg|458875}} {{UploadPost|16063_53e965bc0bb1a.jpg|458875}} {{UploadPost|16063_53e965c6b18bb.jpg|458875}} {{UploadPost|16063_53e965f45ca8a.jpg|458875}} {{UploadPost|16063_53e965e9850fe.jpg|458875}} {{UploadPost|16063_53e965fd6c49a.jpg|458875}}
 +
 +You'll also need to think about you're belt tensioner you need to keep tension on these belts to make them whine!
 +
 +You will need to use a 320 belt.
 +
 += Kemotorsport A-series kit =
 +* http://www.kemotorsport.com
 +
 +Kemotorsport in South Australia made a limited edition A-series gilmer drive kit for $160.00 +postage. It is a direct bolt on installation.
 +
 +{{UploadPost|2602_603460e48d4d7.jpg|495191}} {{UploadPost|2602_603460ebc21ba.jpg|495191}}
 +
 +Listen to that whine!
 +{{YouTube|dNbvAI9Kun0|Datsun 1200 A15 ute Gilmer drive}}
 +
 +Remove your alternator, waterpump and crank pulley and replace with kemotorsport kit.
 +
 +{{UploadPost|16063_53ed50314b98b.jpg|458940}} {{UploadPost|15999_5460559b5c484.jpg|459132}}
 +
 +Your original fan for your A-series will also fit with the waterpump pulley.
 +
 +{{UploadPost|16063_53f67b40bf4b7.jpg|459132}} {{Album|27152}}
 +
 += DIY =
 +[{{Post|337699}} anyoone wants a D.I.Y on how to install a gilmer drive on an A series engine?]
 +
 +* pulleys $140 and belt cost $45
 +* Use the standard single belt crank pulley. get the single belt crank pulley recessed to the gilmer pulley fits in nicely and centre hole and 4x waterpump holes to line up. its just a small couple of mm right angle recess so that the gilmer pully can sit just inside the origional crank pulley on the engine.. $70
 +* 10" thermo fan from supercheap auto $70
 +* couple of bolts and washers $10
 +
 +{{PB2|l73|Xx_MITCHELL_xX||P9190068.jpg}} {{PB2|l73|Xx_MITCHELL_xX||P9190069.jpg}} {{PB2|l73|Xx_MITCHELL_xX||P9190070.jpg}} {{PB2|l73|Xx_MITCHELL_xX||P9190071.jpg}} {{PB2|l73|Xx_MITCHELL_xX||P9190072.jpg}}
 +
 += Discussions =
 +[http://datsun1200.com/google_search.php?cx=partner-pub-6618565836017258%3A6wrakp-tit8&cof=FORID%3A10&ie=ISO-8859-1&q=gilmer&sa=Search&siteurl=datsun1200.com%2Fmodules%2Fmyalbum%2Fphoto.php%3Flid%3D4143%26cid%3D71&ref=datsun1200.com%2Fmodules%2Fnews%2F search]
 +
 +Discussions in the club Forums include:
 +* [{{Post|337699}} anyoone wants a D.I.Y on how to install a gilmer drive on an A series engine?]
 +* [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=47828 A14 Gilmer Drive D.I.Y]
 +* [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=46368 Has anyone ever put a gilmer belt drive kit on a A12?]
 +* [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=63588 DIY GILMER DRIVE A-Series]
 +
 += Suppliers =
Gilmer drive parts, Cast Alloy Dry Sump Oil Pans With Windage Trays, oil filter adapters Gilmer drive parts, Cast Alloy Dry Sump Oil Pans With Windage Trays, oil filter adapters
* [http://www.drysump.com/price.htm http://www.drysump.com] * [http://www.drysump.com/price.htm http://www.drysump.com]
 +
 +A Series Gilmer Drive Kit
 +* [http://www.kemotorsport.com/ http://www.kemotorsport.com/]
 +
 +[[Category:Engine Modifications]] [[Category:Engine Mechanical]] [[Category:Forced Induction]]{{End}}

Current revision

A gilmer drive is a syncronous drive system using a cogged belt. They were developed by the R.H. Gilmer company and first available for sale in 1949. Timing belts are a type of gilmer belt. They make an interesting whine while the engine is running.
2602_603460e48d4d7.jpgPost 495191

Contents

[edit]

Overview

Gilmer belts differ most importantly from V-belts in that they are synchronous. They do not slip as they turn, so are suitable from driving the camshaft. They are also stronger so can turn a supercharger. They are lighter but more expensive than V-belts. A serpentine belt is a less exepensive version but is not synchronous (will still slip slight during normal usage).

Aside from timing belts, Gilmer belts are most famously used for supercharger belts. They are also somewhat commonly used on race engines for accessory drive (driving the water pump, etc).

Gilmer drive for water pump
864.jpgAlbum 864 695.JPGAlbum 695

Timing belt: 4AGE, CA18DE, etc.
826.jpgAlbum 826 3858.jpgAlbum 3858

Supercharger belt
24190.jpgAlbum 24190 3493.jpgAlbum 3493 9590.jpgAlbum 9590 12437.jpgAlbum 12437 17707.jpgAlbum 17707

[edit]

How To

Using a Small block chev (SBC) kit.

 V I D E O  Datsun 1200 gilmour drive a12 (click to view)
hqdefault.jpg

16063_53e95b128c10a.jpgPost 458872 16063_53e95b32ab029.jpgPost 458872 16063_53e95af245ac7.jpgPost 458872

The alternator pulley goes straight on, water pump pulley just needs the Center machined out a little and for the crank is the issue. Either take one of your spare crank pulleys get the v cut off the outside and machined with four bolt holes centered up and put together or get an adapter plate cnc for it.

Essentially the belt Lully was machined off in a lathe, a step put in it to help centre the new pulley and drilled and tapped.

16063_53e965ae8c4e5.jpgPost 458875 16063_53e965bc0bb1a.jpgPost 458875 16063_53e965c6b18bb.jpgPost 458875 16063_53e965f45ca8a.jpgPost 458875 16063_53e965e9850fe.jpgPost 458875 16063_53e965fd6c49a.jpgPost 458875

You'll also need to think about you're belt tensioner you need to keep tension on these belts to make them whine!

You will need to use a 320 belt.

[edit]

Kemotorsport A-series kit

Kemotorsport in South Australia made a limited edition A-series gilmer drive kit for $160.00 +postage. It is a direct bolt on installation.

2602_603460e48d4d7.jpgPost 495191 2602_603460ebc21ba.jpgPost 495191

Listen to that whine!

 V I D E O  Datsun 1200 A15 ute Gilmer drive (click to view)
hqdefault.jpg

Remove your alternator, waterpump and crank pulley and replace with kemotorsport kit.

16063_53ed50314b98b.jpgPost 458940 15999_5460559b5c484.jpgPost 459132

Your original fan for your A-series will also fit with the waterpump pulley.

16063_53f67b40bf4b7.jpgPost 459132 27152.jpgAlbum 27152

[edit]

DIY

POST anyoone wants a D.I.Y on how to install a gilmer drive on an A series engine?

  • pulleys $140 and belt cost $45
  • Use the standard single belt crank pulley. get the single belt crank pulley recessed to the gilmer pulley fits in nicely and centre hole and 4x waterpump holes to line up. its just a small couple of mm right angle recess so that the gilmer pully can sit just inside the origional crank pulley on the engine.. $70
  • 10" thermo fan from supercheap auto $70
  • couple of bolts and washers $10

P9190068.jpg P9190069.jpg P9190070.jpg P9190071.jpg P9190072.jpg

[edit]

Discussions

search

Discussions in the club Forums include:

[edit]

Suppliers

Gilmer drive parts, Cast Alloy Dry Sump Oil Pans With Windage Trays, oil filter adapters

A Series Gilmer Drive Kit

¤

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