IH PARTS AMERICA
Click Here!

Go Back   IH PARTS AMERICA > Tech Forums > Gas Engine Tech
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read Photo Gallery IH Store Home

Reply
 
Thread Tools Display Modes
Old 06-10-2013, 05:44 PM   #1
jasondart
Member
 
Join Date: Feb 2013
Member Number: 5474
Posts: 40
Default Push rod clearance in intake manifold

Engine is put back together, but I have noticed a few things. Here she is thus far.



My question is what should the clearance be for the push rods and the intake manifold hole? It seems too close to the edge. Also, I was not impressed with the stainless steel bolt kit I ordered. They stick out way too much into the hole as you can see in the picture. Every bolt was the same length.



Is this normal for push rod clearance?
jasondart is offline   Reply With Quote
Old 06-11-2013, 05:47 AM   #2
Robert Kenney
Super Moderator
 
Robert Kenney's Avatar
 
Join Date: Aug 2008
Member Number: 543
Location: So Cal
Posts: 3,420
Default Re: Push rod clearance in intake manifold

Yeah that in normal on these engines.. I had polished areas on my factory 152 when I took it apart. I scooted the stands around to maximize clearance at assembly. No more rubbing.
As for the blolts sticking out into the pushrod passage, if they don't create an interference problem, what is the issue?
__________________
Robert Kenney

“Don't lift until the fear of death over comes the fear of speed.” Author Unknown
Robert Kenney is offline   Reply With Quote
Old 06-11-2013, 07:42 PM   #3
1975IH200
Senior Member
 
1975IH200's Avatar
 
Join Date: Dec 2008
Member Number: 731
Location: 3rd to last cave on the right
Posts: 599
Default Re: Push rod clearance in intake manifold

Quote:
Originally Posted by jasondart View Post
engine is put back together, but I have noticed a few things. Here she is thus far.

My question is what should the clearance be for the push rods and the intake manifold hole? It seems too close to the edge. Also, I was not impressed with the stainless steel bolt kit I ordered. They stick out way too much into the hole as you can see in the picture. Every bolt was the same length.

Is this normal for push rod clearance?
Per the IH manual, the bolts in those eight positions (four per side) should be 3/8" nc x 1".
The others should be 3/8" nc x 1 1/4 (four each) and 3/8" nc x 1 1/2" (four each).
Each bolt should have one 3/8" flat steel washer under the head.
__________________

My Junk --> 1975 "200HD" AWD Truck
My Cave location --> Western North Carolina
1975IH200 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 05:34 PM.