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> intake tube alignment, 3/4 tube to the distributor is off
malcolm2
post Mar 21 2012, 06:44 PM
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Well, I did not pay enough attention as I was taking this engine apart. I cleaned, blasted and painted the intake tubes and the "intake distributor" (please correct me if I have mis-named). Anyway, I am a good 1/4" off center on the #3 cylinder intake tube, left tube. This can't be good or right, can it? I can get the short rubber hose on,
this kind of offset will leak right?
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the 1/2 side lines up nicely

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JawjaPorsche
post Mar 21 2012, 07:10 PM
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Could you have the tubes on the wrong side?
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Valy
post Mar 21 2012, 07:14 PM
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Is the air distribution box in the correct location? How are the other 2 j tubes?
Are left and right j tubes connected in the right place?
Did you mix 1.8 and 2.0 components?
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Valy
post Mar 21 2012, 07:18 PM
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Looking at the pictures again, I see 2.0 runners and 1.8 box.
If you replace the heads to 3 studs, just drill the 1.8 runners.
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malcolm2
post Mar 21 2012, 07:34 PM
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I have tried the tubes on both sides, same result. These are 1.8 heads. 1 came off the car, Len gave me the other one. Both have 4 studs and the tubes have 4 holes and they came off of this engine....so the head end is fine, and I have the spacers on the heads. maybe I could get me a longer rubber hose?
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malcolm2
post Mar 21 2012, 07:36 PM
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QUOTE(Valy @ Mar 21 2012, 08:14 PM) *

Is the air distribution box in the correct location? How are the other 2 j tubes?
Are left and right j tubes connected in the right place?
Did you mix 1.8 and 2.0 components?


The box really won't go on any other way. the distance from the box pipes to the J-pipes is the same on both sides, 1 is just off center. German welder must have been in a hurry to go to lunch when he welded this one.
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02loftsmoor
post Mar 21 2012, 07:39 PM
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From your posts you seem to be in the know. Question, would it be worth while to polish and match the intake system?
Thanks Wes




QUOTE(Valy @ Mar 21 2012, 08:18 PM) *

Looking at the pictures again, I see 2.0 runners and 1.8 box.
If you replace the heads to 3 studs, just drill the 1.8 runners.
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McMark
post Mar 21 2012, 07:42 PM
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The attachment point near the flywheel ison the wrong side.
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malcolm2
post Mar 21 2012, 07:42 PM
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QUOTE(02loftsmoor @ Mar 21 2012, 08:39 PM) *

From your posts you seem to be in the know. Question, would it be worth while to polish and match the intake system?
Thanks Wes




QUOTE(Valy @ Mar 21 2012, 08:18 PM) *

Looking at the pictures again, I see 2.0 runners and 1.8 box.
If you replace the heads to 3 studs, just drill the 1.8 runners.



But he thinks I would put a 3 hole tube on a 4 stud head and not notice? (IMG:style_emoticons/default/shades.gif)
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malcolm2
post Mar 21 2012, 07:51 PM
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QUOTE(McMark @ Mar 21 2012, 08:42 PM) *

The attachment point near the flywheel ison the wrong side.


wouldn't all four be off center if I move the mount to the other side? here is a picture of everything together.

the plenum tubes are about 2-1/4" center to center. the tubes on 1/2 side are the same. the 3/4 jtubes are only 2". Am I crazy?
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dlee6204
post Mar 21 2012, 08:20 PM
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My rear mount is on the same side as yours. Could the pipe have been tweaked/bent?
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Valy
post Mar 21 2012, 08:45 PM
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My setup here
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malcolm2
post Mar 21 2012, 08:45 PM
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QUOTE(dlee6204 @ Mar 21 2012, 09:20 PM) *

My rear mount is on the same side as yours. Could the pipe have been tweaked/bent?


looks to be welded at the wrong angle. no signs of a hit. question is: LEAK or not?
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Spoke
post Mar 21 2012, 08:55 PM
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Here's a couple of pics of my 1.8L engine showing the runners. The plenum on yours looks to be mounted like mine.


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malcolm2
post Mar 21 2012, 09:08 PM
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QUOTE(Spoke @ Mar 21 2012, 09:55 PM) *

Here's a couple of pics of my 1.8L engine showing the runners. The plenum on yours looks to be mounted like mine.


all the tubes on yours looks to be lined up with the plenum tubes. Your plenum is smaller than mine tho....("not what she said!") mine is an early 75, made 10/74. I bet your car is older. Wonder if there are different length tubes?
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malcolm2
post Mar 21 2012, 09:09 PM
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QUOTE(malcolm2 @ Mar 21 2012, 08:42 PM) *

QUOTE(02loftsmoor @ Mar 21 2012, 08:39 PM) *

From your posts you seem to be in the know. Question, would it be worth while to polish and match the intake system?
Thanks Wes




QUOTE(Valy @ Mar 21 2012, 08:18 PM) *

Looking at the pictures again, I see 2.0 runners and 1.8 box.
If you replace the heads to 3 studs, just drill the 1.8 runners.



But he thinks I would put a 3 hole tube on a 4 stud head and not notice? (IMG:style_emoticons/default/shades.gif)
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914itis
post Mar 21 2012, 10:31 PM
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I think that you may be using thicker intake gasket, where did you get them from?
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bigkensteele
post Mar 21 2012, 10:56 PM
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QUOTE(malcolm2 @ Mar 21 2012, 07:08 PM) *

QUOTE(Spoke @ Mar 21 2012, 09:55 PM) *

Here's a couple of pics of my 1.8L engine showing the runners. The plenum on yours looks to be mounted like mine.


all the tubes on yours looks to be lined up with the plenum tubes. Your plenum is smaller than mine tho....("not what she said!") mine is an early 75, made 10/74. I bet your car is older. Wonder if there are different length tubes?

I had the same problem with mine, and it is an early 75, made 11/74. I did not change any hardware, just took it down to a longblock, replaced all seals and gaskets, and when I went to put it all together, I could not get the runners to line up no matter how I tried. I could not see a way to make it better, no matter how I mounted the plenum or the runners.

I ended up just getting them as close as I could and put the runner hoses on hoping that I had a good seal.

Of course, I came home on a flatbed last Thursday, but I don't think that it was due to this....
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Spoke
post Mar 21 2012, 11:05 PM
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Is it possible to loosen the bolts on the plenum to see if there is any play in the mounting? Perhaps even apply some pressure to bend the mounting tabs to align the tubes first, then tighten?
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Valy
post Mar 21 2012, 11:29 PM
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QUOTE(malcolm2 @ Mar 21 2012, 06:34 PM) *

I have tried the tubes on both sides, same result. These are 1.8 heads. 1 came off the car, Len gave me the other one. Both have 4 studs and the tubes have 4 holes and they came off of this engine....so the head end is fine, and I have the spacers on the heads. maybe I could get me a longer rubber hose?

Did you replace the cylinders?
If so, can you check they are the same length as the old ones?
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