 Fan Hub Condition, Engine rebuilding |
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| Aayala |
 Dec 8 2025, 11:33 AM
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#1
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Newbie  Group: Members Posts: 37 Joined: 7-July 25 From: Austin Tx Member No.: 28,874 Region Association: South East States  |
Hello all,
I am making slow progress on the 1.8L 1975 Engine Rebuild. So far I have ordered new 96MM pistons and cylinders, valve springs, lifters, push rod tubes, engine seal kit and new front and rear seals. While taking off the fan hub, I noticed a slight bend in the front part of the groove for the woodruff key and not sure if this is cause for concern? Should I consider replacing this fan hub assembly or is that not enough cause for concern? I used some gear pullers so not sure if that was my doing or not. (IMG:style_emoticons/default/dry.gif)   Also, a picture of the condition of the crankshaft end with a slight ding circled in red and the wodruff key, I am planning on replacing the key of course but not sure if someone used a tool to seat it in place? No cause for concern on the crankshaft correct?   Now dealing with measuring the crank main journals to determine what bearing size to get! slowly but surely... |
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| 930cabman |
Dec 8 2025, 12:46 PM
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#2
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Advanced Member Group: Members Posts: 4,360 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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From what I can see, just a bit of cleanup (file) to remove the burrs and a new keyway are in order
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| Jamie |
Dec 8 2025, 12:53 PM
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#3
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Senior Member Group: Members Posts: 1,171 Joined: 13-October 04 From: Georgetown,KY Member No.: 2,939 Region Association: South East States
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QUOTE(Aayala @ Dec 8 2025, 09:33 AM)  Hello all, I am making slow progress on the 1.8L 1975 Engine Rebuild. So far I have ordered new 96MM pistons and cylinders, valve springs, lifters, push rod tubes, engine seal kit and new front and rear seals. While taking off the fan hub, I noticed a slight bend in the front part of the groove for the woodruff key and not sure if this is cause for concern? Should I consider replacing this fan hub assembly or is that not enough cause for concern? I used some gear pullers so not sure if that was my doing or not. (IMG:style_emoticons/default/dry.gif) Also, a picture of the condition of the crankshaft end with a slight ding circled in red and the wodruff key, I am planning on replacing the key of course but not sure if someone used a tool to seat it in place? No cause for concern on the crankshaft correct? Now dealing with measuring the crank main journals to determine what bearing size to get! slowly but surely... Looks like some DAPO hammer peened the key in order to keep it in place? (IMG:style_emoticons/default/huh.gif) (IMG:style_emoticons/default/ar15.gif) |
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2 Members: Jack Standz, 930cabman
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