 Question from a noob |
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| Yesterdays_Fish |
 Oct 3 2006, 02:08 PM
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#1
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Newbie  Group: Members Posts: 8 Joined: 25-May 06 From: Indianpolis Member No.: 6,068  |
I just pulled the engine from a donor car for my 71. While I have the engine out of the car, what maintenance/inspections should I do? I'm not looking to do a complete rebuild, but would like to cover the basics before it goes in - wires, hoses, etc...
Thanks in advance. |
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| Twystd1 |
Oct 3 2006, 02:48 PM
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You don't want to know... really..... Group: Members Posts: 2,514 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
NO... Don't do the above...!!!!!!!!!!!!!!!!!!!!!
Find a manual first. Look at the pics of the head studs. You will see there are 8 studs that hold the heads on. (per side) If you just pull the valve covers. And re-torque the 4 nuts. You will effectively be torqing half the head studs. that in turn may well TILT the head so it doesn't seal anymore. the heads MUST be torqued in a sequence and ALL of the fasteners must be torqued EVENLY... Furthermore. I can't get accurate toque settings on a used engine. (unless it was very recently rebuilt) This is because the threads of the upper 4 studs, the washers and the nuts have typically a bit (or a lot) of corrosion on them. this is due to water, acid atmosphere, salted roads, age, rust etc..... These 4 studs are open to the elements. the 4 under the valve cover are bathed in oil. These very differant enviroments. (One clean and purdy, one covered in rust and gunk) Therefore if you throw a torque wrench on all 8 nuts, the torque values may very well be over the place. (possibly very bad news) I clean all the threads, and the washers scrupulously before any re-torquing. (have to IMHO) And by the way. you must remove the upper sheet metal to get to the upper stud/nut combination. And thats a bitch if done in the car. Since your engine is out of the car. it makes this work much easier. Personally, my suggestion is... DON'T MESS WITH THE HEADS YET. Borrow a spare tranny and spin the engine on the ground. (tranny hold the starter) Give the engine a compression test and see what ya have. post the results here. If there is a problem. We can suggest a workable solutions. If the engine is a known runner. I suggest you tune it up as best as possible. Change the oil. And run the hell out of it. If ya have problems. Post the issues here and fellas smarter than me will help ya..!!!!!!!!!!!!!!! Regards, Twystd1 |
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Posts in this topic
Yesterdays_Fish Question from a noob Oct 3 2006, 02:08 PM
ptravnic check the torque settings on the head bolts (insid... Oct 3 2006, 02:16 PM Yesterdays_Fish Okay, thanks. Oct 3 2006, 02:23 PM ws91420 Go ahead and replace the rear main and front seal ... Oct 3 2006, 02:46 PM mihai914 I would add, changing the pushrod tube seals and a... Oct 3 2006, 02:48 PM zymurgist Still have the fuel injection system? I would rep... Oct 3 2006, 02:54 PM Bleyseng :agree:
but please get the Porsche fuel injectio... Oct 3 2006, 05:57 PM Yesterdays_Fish Thanks to everyone for your help. I have a Haynes... Oct 4 2006, 05:53 AM Bleyseng Down load the 914 Factory Manual. Its online somew... Oct 4 2006, 09:33 AM jsteele22 What they said. Plus, if it isn't already obv... Oct 4 2006, 09:50 AM ptravnic If you are willing to pull the sheet metal I still... Oct 4 2006, 10:10 AM
Yesterdays_Fish I'm starting to see that there is a lot that c... Oct 4 2006, 10:31 AM |
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