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SEVENT9
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PARTIAL DROP COMING UP: What else would you fix?
Hey everyone,
So I am braving my first partial engine drop to fix a disconnected oil breather hose and, while I am there, replacing everything the Triangle Of Death has to offer so that I have peace of mind that area is all as good as can be when she goes back in. I will also be replacing to over-expanded intake rubber sleeves so the CIS will be coming off to get this all done. My question is what else would you recommend I attend to or check for while doing this? I'd like to do as much as possible and ideally would order parts all ahead of the partial drop so would love any advice you guys might have before I go for it. Interested to hear your thoughts!! ![]() Thanks!! Dan
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- - - - SEVENT9 '79 SC Black: My first 911 & my birth year!! ![]() http://forums.pelicanparts.com/porsche-911-technical-forum/1000359-79-outlaw-build-thread.html |
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1988 Carrera
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check heater hoses. Easy to change with partial drop
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88' Carrera 79' SC gone (lost to Katrina) 75' Targa gone 72'914 gone 72' 914 gone too |
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SEVENT9
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Thanks - My heat is backdated so the are long gone but good to know!
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- - - - SEVENT9 '79 SC Black: My first 911 & my birth year!! ![]() http://forums.pelicanparts.com/porsche-911-technical-forum/1000359-79-outlaw-build-thread.html |
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El Duderino
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Good time to replace any vac lines.
The bushings on the throttle linkage. Get the brass ones. They'll last forever. Put some JB Weld on the idiot light switch where the metal crimps over the plastic part. That will keep oil from seeping past in the future.
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There are those who call me... Tim '83 911 SC 3.0 coupe (NA) You can't buy happiness, but you can buy car parts which is kind of the same thing. |
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Registered
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Most important, don't forget to disconnect the shift linkage from the transmission.
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,020
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Grab the big breather hose and see how hard the rubber is. If it feels like solid plastic replace it. You should be able to completely collapse it with your hand.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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Call 911
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Replace all rubber fuel lines.
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Dave Kirk My Porsche restoreth my soul. |
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SEVENT9
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Quote:
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SEVENT9
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Thanks Dave - I'll definitely do this, appreciate the suggestion!
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Registered
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Take the opportunity to clean everything you can. Also, check all fasteners that you can get a wrench on and be sure they are properly torqued. Also check the triangle of death for any leaks. Finally, if your rubber seal abound the engine compartment is original, it’s a good time to change that out (easier with a full drop, though). Enjoy.
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'87 Carrera (3.4L) w/Turbo, full-bay IC; front bumper aux oil cooler, etc. '07 Boxter Last edited by Lyle O; 10-16-2019 at 06:25 PM.. |
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Registered
Join Date: Feb 2009
Location: Knoxville, TN
Posts: 1,347
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Oil thermostat and cooler o rings, and breather cover gasket
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Registered
Join Date: Mar 2005
Location: Northern CA
Posts: 4,703
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Might want to pull the rocker shafts and check for wear on shafts or bushings. Replace with RSR seals. Other: rubber engine tin seal, upgrade fuel lines (already mentioned), check cam chain wear, installed pressure feed tensioners (? I don't know if this engine has those), replace chain ramps.
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Sold: 1989 3.2 coupe, 112k miles |
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Registered
Join Date: May 2013
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Injector o-rings
Mouse stashes under the shroud Engine sound pad Vacuum leaks with smoke test |
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Registered
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Motor mounts. Might as well do the trans mounts too if they're original.
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2000 Boxster S and 2016 Audi A6 |
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SEVENT9
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These are all great suggestions everyone! Thank you! The ones that appeal most to me are:
• Triangle of Death which was my initial reason for the drop in the first place. • Lines replacements - vacuum lines, breather hose, fuel lines • Upgrade to Turbo Chain Tensioners - been on the list and needs doing so may as well do now. • Upgrade engine & tranny mounts to Rennline Tunables • Possibly change engine mount cross bar if it needs it. • Of course give the whole engine as much of a clean as possible! I don't know much about the rocker shafts and RSR seals so I will read up on this and decide. Some (very likely dumb) newbie questions I have are: • Do I need to empty oil when doing a partial drop? I know it makes sense to do so and I likely will but was curious. • When replacing all the fuel lines do I need to empty the fuel and if so what is the best way to do this? Thanks again!
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SEVENT9
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Thought I would post this here. A link to another PP member who is making CIS fuel lines for our 3.0's - looks like a great kit!
911 SC 3.0 fuel line kit, Teflon and stainless steel
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Registered
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This can be a very slippery slope. I would really recommend fully dropping the motor. All of this work can be done with a partial drop but far easier with the motor and trans removed. Not to mention the pain you will save on your back leaning into the engine bay. I dropped my motor for the first time 2 years ago and it was way easier than I thought. I removed the rear bumper and used 3 ton jack stands, a jack and engine dolly I made out of birch plywood with casters. I have a checklist I can email you and plans I made for the engine dolly if you decide to go down that path.
The only negative with dropping the motor is stuff tends to add up (project creep) I ended up blowing my budget because I figured I would do everything I could while the motor was out. A few things to add to your list: adj the valves if your removing valve covers anyway tunnel lines but harder to do with motor installed (boxsterGT makes them) engine pad If you decide to remove motor: check clutch front and rear main seals shift rod seal on trans output shaft seal on trans check oil cooler for leaks (I couldn't tell if oil was from triangle or cooler. It ended up being both) Here is a link to my engine drop with lots of pics. Its a 930 motor but info should still help. 930 Targa Engine Drop & Upgrade Project Last edited by Brian911T; 10-18-2019 at 02:47 PM.. |
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Scope creep:
valve rocker arm gap adjustments. fuel injector rebuild look real hard around the both cam towers, especially rear o-rings
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1980 911 - Metzger 3.6L 2016 Cayman S |
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SEVENT9
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Quote:
Thanks so much again - this is going to be really helpful for me!!
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Wildman Emeritus
Join Date: Feb 2003
Location: Chitown Burbs
Posts: 1,875
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Good choice to do a full drop. Stuff is much more accessible and that means less chance of goofs due to reaching, bad tool angles and all that. Lot easier to lean forward from a stool than to contort inside the engine bay. Plus, I found it to be a wrenching confidence builder.
Good luck and will be looking for documentation. Scope creep, bah, it's only money ![]()
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Mike Andrew 1980 SCWDP 2024 Suby Forester 2018 BMW X1- Wife's 2000 Boxter - Sold |
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