Starter motors
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| − | |[[File:Iron left al right starter nose.jpg|thumb | + | |[[File:Iron left al right starter nose.jpg|thumb|300px|Cast iron nose left, aluminum nose right. Note the difference in the depth of the two noses; only the cast iron nose can be used with a manual tranny bellhousing]] |
| + | |[[File:Block starter pad.jpg|thumb|400px|Block mounted starter holes]] | ||
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===Nose bolt hole sizes=== | ===Nose bolt hole sizes=== | ||
There are also two different OEM starter nose bolt hole sizes available. The holes in the nose where the bolts go are designed to fit either 3/8" bolts or metric bolts. 3/8" equates to approximately 9.5mm. If 3/8 bolts are used on a starter designed to use 10mm bolts, there will be extra play between the bolt and the bolt holes of the starter nose. This can allow the starter to move relative to the ring gear, causing the starter to grind along with causing wear to the starter gear and the flexplate/flywheel ring gear. Over time the wear (or movement if the amount of movement is great enough) can result in the starter gear no longer being able to engage the ring gear and the result is an engine that cannot be started. | There are also two different OEM starter nose bolt hole sizes available. The holes in the nose where the bolts go are designed to fit either 3/8" bolts or metric bolts. 3/8" equates to approximately 9.5mm. If 3/8 bolts are used on a starter designed to use 10mm bolts, there will be extra play between the bolt and the bolt holes of the starter nose. This can allow the starter to move relative to the ring gear, causing the starter to grind along with causing wear to the starter gear and the flexplate/flywheel ring gear. Over time the wear (or movement if the amount of movement is great enough) can result in the starter gear no longer being able to engage the ring gear and the result is an engine that cannot be started. | ||
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==What to do if the block is broken== | ==What to do if the block is broken== | ||
There is a fix for engine blocks that have unrepairable cracks or breaks where the starter mounts to the block. Shown below is an adaptor plate and spacer that can be used to mount the early type bellhousing mounted starter to a later block. It can save a block that would be otherwise either junk or requiring expensive and time consuming welding to fix. Ecklers also sells an adaptor plate similar to the one shown under p/n 19-68. | There is a fix for engine blocks that have unrepairable cracks or breaks where the starter mounts to the block. Shown below is an adaptor plate and spacer that can be used to mount the early type bellhousing mounted starter to a later block. It can save a block that would be otherwise either junk or requiring expensive and time consuming welding to fix. Ecklers also sells an adaptor plate similar to the one shown under p/n 19-68. | ||
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