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iron cast and steel welding

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发表于 2021-8-31 23:22:25 | 显示全部楼层 |阅读模式
hello my friends, i neew here. i am from israel. and i have a question. i have a kracked small block chevy with broken starter housing. i need to weld to there something with thread for bolt. and my question is. can i weld  another steel to the iron castn like a simple nut? or i must to weld a iron cast bushing with thread? thank you.
Reply:Look up helicoil thread inserts. See if that will work for you. No welding needed.
Reply:Originally Posted by ccawgcLook up helicoil thread inserts. See if that will work for you. No welding needed.
Reply:If you are actually missing a  piece of the block where the starter mounts, you might have to build up the area with some machinable nickel rod, grind it as flat as you can, then re-drill and tap the mounting hole.  I have fixed big block Chevy blocks where the starter area was split at the bolt hole, but never where the piece was actually missing.Miller Syncrowave 350Millermatic 252/ 30A spoolgunMiller Bobcat 225g w/ 3545 spoolgunLincoln PowerArc4000Lincoln 175 Mig  Lincoln 135 Mig Everlast 250EX TigCentury ac/dc 230 amp stickVictor O/AHypertherm 1000 plasma
Reply:Depending on your casting, there may be two ways to bolt the starter on.  My '71 casting allows for both a stock staggered bolt or a straight in line bolt mini starter.  The two holes are outward on the block.  May just be easier to change the starter.No pro here, but all I've read suggests either nickel rod or brazing.TA Arcmaster 300CM3XMT 304S22P12 suitcase feederX-Treme 12VSOptima pulserTA161SMaxstar 150STLHypertherm PM45OP setupStihl 020AVP, 039, 066 Magnum
Reply:And use the rear starter bracket, that's what it's for.Tim Beeker.
Reply:Definatelly  use the starter brace . Get an air arc carbon or a copper rod ,I believe 5-16 inch, build in the area around it with nickel rod. You could also braze the area in but it will strip out easier . I wouldn't use a helicoil instead get a keensert threaded insert. This would typically be 3-8 internal thread 1-2 inch external thread . Bolt yor starter on with the 1 good hole then carefully drill out the repair using the starter hole as a guide . Pull starter off and redrill to 7-16 inch and tap it for the keensert . On the keensert there are 4 tabs that you drive in with a driver you can get where you get the insert . The tabs lock the insert in so it cant unscrew. Check your ignition timing, that's usally what causes kickback that breaks the starter or the block.Miller xmt304,  Miller S22 p12, Miier Maxstar SD, Miller 252 w 30A, Miller super32p12, Lincoln Ranger 9, Thermal Arc 181I with spoolgun, Hypertherm 10000 ,Smith torches. Esab 161lts miniarc.
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