Drop engine to replace single port intake gasket?

guatebus

Anyone have any tips on this?

I have an intake leak where the single port manifold connects to the head and want to put in a new gasket.

Is it feasible to do this without dropping the engine, or is it such a pain in the ass that it's better just to drop the engine?
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Glenn · Posted: Tue Jun 30, 2015 10:59 am Post subject:

In a Bus, i'd pull the engine. And while it's out i'd check the clutch, TO bearing and other stuff.
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esde · Posted: Tue Jun 30, 2015 1:15 pm Post subject:

It is possible to replace the gaskets without dropping the motor. It is a lot easier to do with the engine out. Depends on your comfort level, and how much room you have to work.

velvetgreen · Posted: Tue Jun 30, 2015 1:21 pm Post subject:

I just did this in on 1600 DP- yes it is possible to do in situ but I think you would need to be tantric yoga master to pull it off.

IMHO easier to pull the engine and save your head from banging around crowded engine bay and your back from craning all over the place. My 0.02

Erik G · Posted: Tue Jun 30, 2015 1:34 pm Post subject:

Only reason not to pull the motor is if your living situation presents a problem. I know Oakland, I know the hills, I know the lack of flat garage and driveways is pretty normal.

If you have the space, pull the motor. If not, like you are working on the street - it can be done
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guatebus · Posted: Tue Jun 30, 2015 6:00 pm Post subject:

Yeah, I don't have a huge amount of space, though I do have a small garage.

I usually don't break any records when I pull the engine...I tend to take my time.

I guess I'll pull the engine, swap the gaskets and do some other maintenance while I have the chance.

It is my daily driver, so it's inconvenient to have it down and I don't think it's a great idea to drive around with an intake leak. It doesn't seem to have any effect on driveability but I do worry about leaning out the mixture and overheating a valve or something.

I wish I could get some OG copper intake gaskets on short notice.
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busdaddy · Posted: Tue Jun 30, 2015 6:37 pm Post subject:

If I had to do it in place I'd put the bus on a hoist, or at least jack up the ass end 2-3 feet in the air so most of the yoga moves could be done from a chair, work smarter, not harder. Wink

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BarryL · Posted: Tue Jun 30, 2015 6:54 pm Post subject:

guatebus · Posted: Tue Jun 30, 2015 7:14 pm Post subject:

Harleyelf · Posted: Tue Jun 30, 2015 9:32 pm Post subject:

Drive to Berkeley for a nice flat place to work on it without being rousted. It's a city tradition to wait a full day before police start asking if the bus is disabled. Not at People's Park, but further north at one of the other big parks.

Pulling the single-port intake with the engine in may involve loosening the fan shroud and lifting it a few inches.

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Stuart Maingot · Posted: Wed Jul 01, 2015 9:43 am Post subject:

Have done both DP and SP intake gasket replacement with engine installed in my 67 Split.
DP is quite easy.
SP is a little more difficult especially when tightening the 10 mm manifold nuts evenly and not seeing the even crush on the new gaskets. It's easy to have the manifold tightened unevenly and cock the gasket and have leaks. Been there done that.

Lind · Posted: Wed Jul 01, 2015 5:49 pm Post subject:

also check for multiple intake gaskets. I have seen as many as 3 stacked into a head.
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j.pickens · Posted: Wed Jul 01, 2015 7:05 pm Post subject:

It would be really nasty to drop a manifold nut or washer into the intake while trying to do the reach around with the engine installed.

Pull the engine, take your time. Have a magnet on a stick tool handy for removing the loose bits around the intake.
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guatebus · Posted: Fri Jul 03, 2015 9:22 am Post subject:

Just finished!

I ended up pulling the engine. As usual, most of my time was spent cursing while removing the upper engine mounting bolts.

I pulled two intake gaskets out of each head and replaced them. To tighten the nuts, I got to use the 10mm swivel socket I "borrowed" from work.

I'm glad I pulled the engine because I ended up completely removing the entire intake manifold for clearance and that is definitely a bitch with the engine installed.

I also found and replaced a torn axle boot and replaced my fuel lines with Flennor 5mm 30R7 hose (fits nice!).

After re-installing the engine, I spent a few hours trying to track down a rattling noise. The noise changed when I pressed the clutch pedal, so at first I was screwing around with the clutch adjustment to no avail, which put me in a very foul mood.

The source of the noise turned out to be the pulley tin rubbing on the lower pulley. Embarassed

Engaging the clutch moved the pulley a hair and caused the noise to change. I think my end play must be a bit out of spec, but I'm too tired to drop the engine and check/fix it now. Exclamation

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