Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
techtalk:ih:engmech03 [2019/06/12 01:49] hippysmack [Rod Play] |
techtalk:ih:engmech03 [2019/12/09 16:58] hippysmack [Aftermarket Head Gaskets] |
||
---|---|---|---|
Line 43: | Line 43: | ||
|{{:techtalk:ih:engmech:1969_heads_by_monte03.jpg?direct&400|}}| | |{{:techtalk:ih:engmech:1969_heads_by_monte03.jpg?direct&400|}}| | ||
| 1969 Iron Heads ((photo by Monte03 of the XLFORUM http://xlforum.net/forums/showthread.php?t=166440&page=6)) | | | 1969 Iron Heads ((photo by Monte03 of the XLFORUM http://xlforum.net/forums/showthread.php?t=166440&page=6)) | | ||
+ | |||
+ | |||
====== Valves ====== | ====== Valves ====== | ||
Line 114: | Line 116: | ||
* Oversized .010" piston range: 3.197"-3.196" | * Oversized .010" piston range: 3.197"-3.196" | ||
- | ====== Rods ====== | + | ====== Connecting Rods ====== |
===== Rod Play ===== | ===== Rod Play ===== | ||
- | **70-76**: \\ | + | When checking for the up and down play, it helps to spray the crank pin area down with brake cleaner. ((brucstoudt of the XLFORUM http://xlforum.net/forums/showthread.php?t=2070383&page=5)) \\ |
- | Check rods for (up and down) play as well as (upper end side shake or rod tip) with the pistons removed from the rods. \\ | + | This is to rinse down any oil that may be clinging to the roller bearings. \\ |
- | Side shake measurement can be done with a ruler using the outside edge of the case as a base line. \\ | + | The oil can take up space between the rollers and not give an accurate feel. \\ |
- | When appreciable up and down play is found and side shake at the extreme upper end of the rod is more than the following specs,; \\ | + | |
- | The lower bearing should be re-fitted. \\ | + | |
- | Front: 11/64" \\ | + | |
- | Rear: 3/64" \\ | + | |
+ | However, don't forget to oil it back up before re-assembly. ((Toejam503 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2070383&page=5)) \\ | ||
+ | You don't want raw metal rubbing each other on start up. \\ | ||
+ | Side shake measurement (76 and earlier models) can be done with a ruler using the outside edge of the case as a base line. \\ | ||
+ | ==== 57-64 models ==== | ||
+ | Check rods for (up and down) play as well as (upper end side shake or rod tip) with the pistons removed from the rods. ((HD 1957-1964 FSM (dealer) pg 3C-7)) \\ | ||
+ | When appreciable up and down play is found and side shake at the extreme upper end of the rod is more than the following specs; \\ | ||
+ | The lower bearing should be re-fitted. \\ | ||
+ | **Specs**: \\ | ||
+ | Front: 3/32" or more \\ | ||
+ | Rear: 3/32" or more \\ | ||
+ | ==== 57-69 models ==== | ||
+ | Check rods for (up and down) play as well as (upper end side shake or rod tip) with the pistons removed from the rods. ((HD 1959-1969 FSM (99484-69) pg 3C-7)) \\ | ||
+ | When appreciable up and down play is found and side shake at the extreme upper end of the rod is more than the following specs; \\ | ||
+ | The lower bearing should be re-fitted. \\ | ||
+ | **Specs**: \\ | ||
+ | Front: 11/64" or more \\ | ||
+ | Rear: 3/32" or more \\ | ||
+ | ==== 76 and earlier models ==== | ||
+ | **Motorcycles using rod bearings with steel retainers**: \\ | ||
+ | Check rods for (up and down) play as well as (upper end side shake or rod tip) with the pistons removed from the rods. \\ | ||
+ | When appreciable up and down play is found and side shake at the extreme upper end of the rod is more than the following specs; \\ | ||
+ | The lower bearing should be re-fitted. \\ | ||
+ | **Specs**: \\ | ||
+ | 76 and earlier (from the 70-76 FSM): ((HD 1970-1976 FSM (dealer) pg 3-14)) \\ | ||
+ | Front: 11/64" or more \\ | ||
+ | Rear: 3/64" or more \\ | ||
+ | 76 and earlier (from the 70-78 FSM): ((HD 1970-1978 FSM (99484-78) pg 3-17)) \\ | ||
+ | Front: 3/64" or more \\ | ||
+ | Rear: 1/64" or more \\ | ||
+ | ==== 77 and 78 models ==== | ||
+ | **Motorcycles using rod bearings with aluminum retainers**: \\ | ||
+ | Check rods for (up and down) play with the pistons removed from the rods. ((HD 1970-1978 FSM (99484-78) pg 3-17)) \\ | ||
+ | Side shake cannot be used to determine bearing wear. \\ | ||
+ | When appreciable up-and-down movement is found, the lower bearing should be refitted. \\ | ||
+ | ==== 79-85 models ==== | ||
+ | Check rods for up and down play in lower bearings. ((1979-1985 HD FSM (99484-85) pg 3-25)) \\ | ||
+ | Measuring side shake is no longer recommended in the FSM as in above. \\ | ||
+ | When up and down play is detected, the lower bearing should be refitted. \\ | ||
\\ | \\ | ||
[[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] |