lost 2 cylinders on one side..HELP

johnnyniceguy

Looking for a quick answer for losing both cylinders on the passenger side. No spark. Could it be distributor?? Wired in some extra tail lights 200 miles prior. Ran perfect after that. Went on first midrange ride last evening and going down the road she started to bog down. Must have lost both cylinders at once. Hope to get a look at her tonight. Any quick ideas???

wythac · Samba Member Joined: August 02, 2004 Posts: 2791

http://www.thesamba.com/vw/forum/viewtopic.php?t=286686

Pop your valve cover off and make sure your rocker arm hasn't come loose on that side.

Dale M. · Posted: Mon Jun 15, 2015 6:05 pm Post subject:

johnnyniceguy · Posted: Mon Jun 15, 2015 6:10 pm Post subject:

Thanks guys! I'm headed out to the garage after I post. I did post this under the engine forum as was directed. I will update later.

johnnyniceguy · Posted: Mon Jun 15, 2015 6:39 pm Post subject:

WYTHAC! you were correct. I pulled the cover and all the push rods are resting on the bottom. Not one was in the cup. Everything seems solid, but I will tear into this this coming weekend. Not too sure what else would cause this?? Any ideas???

Danwvw · Posted: Mon Jun 15, 2015 6:44 pm Post subject:

I have had one pop out and not be any problem to just put back but just 1, Your rocker must have come loose!
_________________
1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

Dale M. · Posted: Mon Jun 15, 2015 7:06 pm Post subject:

You either pulled multiple cylinder studs, the two studs that hold rockers or studs broke or nuts came loose... Look deep than the obvious, for hidden problem...

Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.

"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

johnnyniceguy · Posted: Mon Jun 15, 2015 7:44 pm Post subject:

Thank you for your quick replies ! Dale; You have my blood pressure going up with your response. Thanks for being so technical with your answer. I really need to know what to look for. Thanks again! Johnny

Danwvw · Posted: Mon Jun 15, 2015 8:03 pm Post subject:

I was trying to figure your engine out which one it is. Looks like a Single Port! It's not a 40 hourse is it?
_________________
1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

johnnyniceguy · Posted: Mon Jun 15, 2015 8:11 pm Post subject:

Its a dual port 1600....stock carb...new heads......johnny

johnnyniceguy · Posted: Tue Jun 16, 2015 8:41 am Post subject: Help part 2

Does anyone know how rocker arm assembly studs are fastened to back of fomoco heads? My rocker arms are loose. When I turn nut by hand; rod spins too. I can only back them out about a 1/4 inch before tight. Before I go ahead and just tighten them; how should I approach this?

1600 dualport

IowaRedManx · Posted: Tue Jun 16, 2015 9:18 am Post subject:

"FOMOCO" or "MOFOCO"

FOMOCO is usually a reference to Ford or Ford parts

MOFOCO is an aftermarket VW supplier in Milwaukee, WI

Danwvw · Posted: Tue Jun 16, 2015 9:20 am Post subject:

This guy might be able to explain what is hapening: [email protected]
_________________
1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

johnnyniceguy · Posted: Tue Jun 16, 2015 9:42 am Post subject:

Thanks Guys!! Yes MOFOCO...And I have sent an email to Roy. I will keep Samba update. Always appreciate the quick replies. Johnny

wythac · Samba Member Joined: August 02, 2004 Posts: 2791

Since your other thread in the proper engine forum is locked (?) I'll post here:

I would remove your rocker arm and double nut both rocker arm studs and remove them from the head. Check the dropouts threads in the head for thread stripping and damage. Those are some pretty burly threads so it's likely they have just backed out rather than pulled out.

While your head studs are bare (take the cylinder tin off on that side too) check the torque on the heads as Dale suggests....if you start pulling head studs as you attempt to torque the head you have bigger problems. You can stop right there and pull the motor. You are headed for a teardown.

If the head torques down fine than you are left with just making sure your rocker studs are secure. IF the threads are OK on both the dropout threads and the studs, use RED threadlock when you reinstall them and make sure they bottom out. Let that cure before you run it. Shouldnt be a lot of thread sticking out once you remount your rocker arm.

All this MUCH easier on a buggy. Pull up a chair and take your time.

johnnyniceguy · Posted: Mon Jun 22, 2015 2:16 pm Post subject:

Thank you WYTHAC! I have been gone for several days. I think I can handle this thanks to your info. As i said in a post. I can turn the nut&rod out about about a quarter of an inch using my fingers and then it stops tight. Can I use a wrench and now back the nut off? or will the whole stud come out? johnny

wythac · Samba Member Joined: August 02, 2004 Posts: 2791

You want the stud to come out so you can properly secure it with thread lock.

johnnyniceguy · Posted: Tue Jun 23, 2015 8:29 am Post subject:

Thanks for being on Samba wythac! I will attempt the repair this evening. We don't have a long season in Minnesota so I need to get it done.
Thanks to all who posted a reply. Special thanks to Roy at MOFOCO.
I hope to be on the road shortly. VW rules......johnny

johnnyniceguy · Posted: Mon Jun 29, 2015 3:03 pm Post subject: Up date

I removed and reinstalled rocker studs and assembly. Reinstalled and torqued to spec. Fire her up for a few seconds and am finding that I still don't have fire on these 2 cylinders. After making repair; I do have some popping coming out of the exhaust; but not a lot of pressure with it. I will do compression test this weekend. Head bolts are tight. Any more ideas? Wires, distributor, plugs all good. johnny.

wythac · Samba Member Joined: August 02, 2004 Posts: 2791

Compression test. Will tell you if your rocker failure damaged your valves.

Remove your rocker and pushrods again and check to see that the rods aren't bent. Roll them on a flat surface.


Hello! Log in or Register \| Help \| Donate \| Buy Shirts	See all banner ads \| Advertise on TheSamba.com

Forum Index -> Kit Car/Fiberglass Buggy/356 Replica		Share:
		Print View

	Forum Index -> Kit Car/Fiberglass Buggy/356 Replica	All times are Mountain Standard Time/Pacific Daylight Savings Time Page: 1, 2 Next
Page 1 of 2