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 Post subject: Engine issue - Help
Unread postPosted: Sun May 05, 2019 11:17 am 
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Looking for some help, my engine is making a scary bad noise not sure where to start.

Here's some background

Engine had been running rough for about a week. Found that my intake manifolds were a little loose. Tried just tightening them up, but that didn't work. Yesterday I pulled the engine and replaced the intake manifold gaskets. While I was in there I replaced my leaking alternator stand gasket and my fuel pump spacer.

Put everything back together and fired it up this morning. Engine is making a horrible noise.

Anyone available to help?

Thank

Rob

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 Post subject: Re: Engine issue - Help
Unread postPosted: Sun May 05, 2019 12:12 pm 
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Looks like my engine is shot. I just tied rotating the engine and it will only turn about 180 degrees. It will not make a full rotation. Can anyone recommend an engine shop in San Diego. I will need to decide between a rebuild or buying a turn key engine.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Sun May 05, 2019 3:17 pm 
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miranda_65 wrote:
Looks like my engine is shot. I just tied rotating the engine and it will only turn about 180 degrees. It will not make a full rotation. Can anyone recommend an engine shop in San Diego. I will need to decide between a rebuild or buying a turn key engine.


Good luck finding anyone selling a turnkey that is worth a crap.
i Can ask Josh if he would want to do it.


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 Post subject: Re: Engine issue - Help
Unread postPosted: Sun May 05, 2019 3:22 pm 
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Sunshine
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miranda_65 wrote:
Looks like my engine is shot. I just tied rotating the engine and it will only turn about 180 degrees. It will not make a full rotation. Can anyone recommend an engine shop in San Diego. I will need to decide between a rebuild or buying a turn key engine.


Is the engine still in the bus?
I would pull it out and see if it rotates 360 degrees. That doesn't sound right that you would have a sudden interference issue from the work you did.


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 Post subject: Re: Engine issue - Help
Unread postPosted: Sun May 05, 2019 4:04 pm 
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My first thought is that you dropped something in the intake while doing the manifold gasket swap. I’ll tell you MY story later. :roll:

Second, pull the valve covers and make sure none of the valves are stuck open. :???:

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 Post subject: Re: Engine issue - Help
Unread postPosted: Sun May 05, 2019 4:17 pm 
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Gary Schulte (Aeromech on the Samba) uses Gem VW for his engines now. He might be willing to take on such a project. Gary is 100% competant, honest, and straightforward.

Aeromech@aol.com

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 Post subject: Re: Engine issue - Help
Unread postPosted: Mon May 06, 2019 7:43 am 
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What Pyro said is a good place to start!

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 Post subject: Re: Engine issue - Help
Unread postPosted: Mon May 06, 2019 7:49 am 
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Pulled the engine back out of the bus and stripped it back down last night. I tried sticking a magnet stick down the intake and spark plugs but it didn't find anything. I will try pulling the valve covers and heads tonight.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Mon May 06, 2019 3:15 pm 
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Check under your fuel pump. Something fall in?
Was the distributor off? Did the spring on the distributor drive fall out and get tied up in the cam gear?
These are just other ideas to look at while you are in there.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Mon May 06, 2019 7:25 pm 
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Found the issue. Just not sure where that screw would have come from. My best guess is that when I went to change the gasket that sits between the carb and the intake manifold it fell off the carb. I'll have to inspect both carbs and see if the drive side carb is missing a screw.

Image

Image

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 4:55 am 
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Again, BTDT! :-/

You will have to split the case and replace the rod bearing. Better to do it now than later when it disintegrate because it will! Bearing material is soft and gets beat up when that happens. It WILL fail and will create a huge mess inside the case, if not worse damage. :-s

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 7:15 am 
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pyrOman wrote:
Again, BTDT! :-/

You will have to split the case and replace the rod bearing. Better to do it now than later when it disintegrate because it will! Bearing material is soft and gets beat up when that happens. It WILL fail and will create a huge mess inside the case, if not worse damage. :-s


You don't have to split the case to change out a rod bearing. Just pull the jugs, but at that point you may as well split it and replace the mains and put in new pistons and cylinders, and the heads are going to need work now beicase the combustion chamber is screwed up, etc etc. in other words, I would rebuild the whole engine. It wouldn't trust that piston either.


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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 7:57 am 
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pyrOman wrote:
Again, BTDT! :-/

You will have to split the case and replace the rod bearing. Better to do it now than later when it disintegrate because it will! Bearing material is soft and gets beat up when that happens. It WILL fail and will create a huge mess inside the case, if not worse damage. :-s



That's disappointing to hear, I was hoping it would just be new pistons and heads. It's an old case, is there anything I can do to confirm it is worth rebuilding or do I need to take it to a professional shop for inspection.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 8:00 am 
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Good job Rob finding to problem, it has happened to the best of us!!
How far down have you been into an engine?
They are simple yet a bit technical.
I'm sure if you need help, advice etc we are here to assist where needed.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 8:01 am 
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miranda_65 wrote:
pyrOman wrote:
Again, BTDT! :-/

You will have to split the case and replace the rod bearing. Better to do it now than later when it disintegrate because it will! Bearing material is soft and gets beat up when that happens. It WILL fail and will create a huge mess inside the case, if not worse damage. :-s



That's disappointing to hear, I was hoping it would just be new pistons and heads. It's an old case, is there anything I can do to confirm it is worth rebuilding or do I need to take it to a professional shop for inspection.


Did you drive the bus with that noise, or just run it for a short time?

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Slayer Out!!!
(Chris C.)

"Marine Sniper - You can run, but you'll just die tired!"

56 Kombi (The Slayer Bus)
65 Sundial Camper
68 Single Cab
61 Rag Top (went to a good home)
03 Passat (gone)
SV2s Member #231


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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 8:42 am 
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Slayer wrote:
Did you drive the bus with that noise, or just run it for a short time?


Just ran it for about 30 seconds. Basically I fired it up, it started to run. Then I heard an odd noise followed by a couple of small back fires and one big one.

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Rob, Julie, Kaitlyn, Elizabeth and James

"It is a tale told by an idiot, full of sound and fury, signifying nothing." --W. Shakespeare

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 9:28 am 
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miranda_65 wrote:
Slayer wrote:
Did you drive the bus with that noise, or just run it for a short time?


Just ran it for about 30 seconds. Basically I fired it up, it started to run. Then I heard an odd noise followed by a couple of small back fires and one big one.


So this could be in your favor!!
What ya think Pyro or Dan??

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Slayer Out!!!
(Chris C.)

"Marine Sniper - You can run, but you'll just die tired!"

56 Kombi (The Slayer Bus)
65 Sundial Camper
68 Single Cab
61 Rag Top (went to a good home)
03 Passat (gone)
SV2s Member #231


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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 11:29 am 
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I'm seeing that two are in there? One on the piston and one on the head?
Those look like hex drive screws, aka Allan head. There aren't any of those type on a VW motor. Maybe on an after market part, but unusual. Hopefully you didn't have a "little helper" working on your motor while it was out and your back turned.

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 Post subject: Re: Engine issue - Help
Unread postPosted: Tue May 07, 2019 1:57 pm 
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Depends on the financial situation.
Bare minimum I would replace the rod bearing and the piston.
If the bucks are there and the engine has a lot of miles, well, you mostly have it tore down...so might as well rebuild.
You will need to take it to a competent machinist like Dennis at Moonlight and have him clean and measure the case, the crank, inspect the heads....and get a sense of what is salvageable. I know some guys always go with new cases on builds, I tend to use old ones that measure well. Depends on if you have the bucks or don't care about numbers.
Dennis can machine the crank, align bore the case, rebuild the rods, do a valve job, you can buy a new cam and new pistons and cylinders. At this point you might want to consider more displacement. A small stroker crank combined with bigger cylinders, then you have to decide if you want to keep it single armed or dual...it's all depends on budget.
I built a 1800cc engine for my camper, using a 74mm crank and 80mm Pistons and cylinders with a modified stock carb and stock exhaust. I can now cruise at 70 if needed. Other guys here's like bigger engines so the can cruise at 75mph and pull A trailer.
A lot to process...but keep asking questions.


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 Post subject: Re: Engine issue - Help
Unread postPosted: Wed May 08, 2019 7:11 am 
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Buy a new long block, a stock 1600 will last you another 10 years. I haven't bought one for awhile, I'm guessing about $1000-$1500 should buy a rebuilt bottom end, new pistons and barrels, new heads etc. and come with some warranty.

Just one option https://orangecounty.craigslist.org/pts ... 47219.html Do you have a single or dual port in it now? You can also buy turn key engines.

As you know the Bus is worth good money now, a "new" engine is a big plus.

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