The Ford Barn

Scotty H · 11-01-2016, 12:49 AM

I recently replaced a cylinder head on my 1928 tudor along with recommended bolts nuts and washers. When I removed the old head I noticed most of the bolt threads on the block were broken through . So I tefloned the bolts sealing threads thoroughly and installed them making sure all were in properly and level or same height . The new head which was a higher compression head required the new bolts , nuts and washers . Everything turned out fine except the bolts did not protrude to the top of nuts . After several weeks of use and no problems should I be concerned even though torque is good ? I hate to repair something that aint broke but I am a perfectionist and it is bugging me .
Nut caps?

Y-Blockhead · 11-01-2016, 01:16 AM

Quote:

Originally Posted by Scotty H

The new head which was a higher compression head required the new bolts , nuts and washers.

Did the manufacturer specify washers to be used on the new HC head? I don't recall seeing washers used on a head, unless it was an aluminum head and was specified for.

Mike V. Florida · 11-01-2016, 01:23 AM

"I am a perfectionist and it is bugging me"

I would leave it but you could turn out the studs the amount they are not protruding and put the washers and nuts back on or you could use acorn nuts.

CYB4 · 11-01-2016, 01:49 AM

I replaced the cylinder head last winter by a Snyders 5.5 High Compression head. I got new bolts and nuts and also washers. I had the same problem, the bolts were too short with these washers. Finally I put on the head without the washers, as it was done with the original head. No problems at all.

Scotty H · 11-01-2016, 03:42 AM

Thanks guys for the input .

Dollar Bill · 11-01-2016, 04:18 AM

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James Rogers · 11-01-2016, 05:50 AM

The studs should be installed as follows. All studs except #7 are screwed in to 2 3/4" to the first thread down, #7 is screwed all the way in unless the hole is broken through, at that point it is screwed in to 2 15/16" to the first thread down. The two front long studs are screwed in to 5" to the first thread down. This is by Les Andrews and how I do it. This will set the studs to one thread or so out of the nut. Since yours are not giving any trouble, I would leave them alone until the next time you remove the head or till you can't stand looking at them being incorrect.

V4F · 11-01-2016, 08:33 AM

mine don't quit come to the top of the nut & no problems

Special Coupe Frank · 11-01-2016, 08:44 AM

I am curious as to why washers were "recommended" ?

Unless it is an aluminum head, they should not be needed ?

I agree with those who suggest that if all is okay ( no leaks ), run it as-is, and deal with it next time you need to pull the head.

I would assume that if you have washers under those nuts, you're not worried about points judging.

frank55a · 11-01-2016, 09:36 AM

Ford did not use washers under the head nuts. Unless Snyder's heads are now made thinner than they were a couple years ago (I doubt it) they are thicker than the original heads therefore there will not be as much thread exposed on the studs when the head is installed. You need the full thread for proper torqueing.

11-01-2016, 12:49 AM	#1
Scotty H Junior Member Join Date: Oct 2016 Posts: 16	Cylinder head bolts not protruding past top of nut after torque. I recently replaced a cylinder head on my 1928 tudor along with recommended bolts nuts and washers. When I removed the old head I noticed most of the bolt threads on the block were broken through . So I tefloned the bolts sealing threads thoroughly and installed them making sure all were in properly and level or same height . The new head which was a higher compression head required the new bolts , nuts and washers . Everything turned out fine except the bolts did not protrude to the top of nuts . After several weeks of use and no problems should I be concerned even though torque is good ? I hate to repair something that aint broke but I am a perfectionist and it is bugging me . Nut caps?

11-01-2016, 01:23 AM	#3
Mike V. Florida Senior Member Join Date: May 2010 Location: South Florida Posts: 14,054	Re: Cylinder head bolts not protruding past top of nut after torque. "I am a perfectionist and it is bugging me" I would leave it but you could turn out the studs the amount they are not protruding and put the washers and nuts back on or you could use acorn nuts. __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

11-01-2016, 01:49 AM	#4
CYB4 Member Join Date: Feb 2015 Location: Ostallgäu, Bavaria, Germany Posts: 54	Re: Cylinder head bolts not protruding past top of nut after torque. I replaced the cylinder head last winter by a Snyders 5.5 High Compression head. I got new bolts and nuts and also washers. I had the same problem, the bolts were too short with these washers. Finally I put on the head without the washers, as it was done with the original head. No problems at all. __________________ Best regards Chris 1930 Ford A Std. Tudor

11-01-2016, 03:42 AM	#5
Scotty H Junior Member Join Date: Oct 2016 Posts: 16	Re: Cylinder head bolts not protruding past top of nut after torque. Thanks guys for the input .

11-01-2016, 08:33 AM	#8
V4F Senior Member Join Date: May 2010 Location: ca. Posts: 2,522	Re: Cylinder head bolts not protruding past top of nut after torque. mine don't quit come to the top of the nut & no problems __________________ V4f

11-01-2016, 05:50 AM	#7
James Rogers Senior Member Join Date: May 2010 Location: Asheville,NC Posts: 3,104	Re: Cylinder head bolts not protruding past top of nut after torque. The studs should be installed as follows. All studs except #7 are screwed in to 2 3/4" to the first thread down, #7 is screwed all the way in unless the hole is broken through, at that point it is screwed in to 2 15/16" to the first thread down. The two front long studs are screwed in to 5" to the first thread down. This is by Les Andrews and how I do it. This will set the studs to one thread or so out of the nut. Since yours are not giving any trouble, I would leave them alone until the next time you remove the head or till you can't stand looking at them being incorrect. __________________ http://www.model-a-ford-4bangers.com/

11-01-2016, 08:44 AM	#9
Special Coupe Frank Senior Member Join Date: May 2010 Location: Northeast Penna Posts: 2,108	Re: Cylinder head bolts not protruding past top of nut after torque. I am curious as to why washers were "recommended" ? Unless it is an aluminum head, they should not be needed ? I agree with those who suggest that if all is okay ( no leaks ), run it as-is, and deal with it next time you need to pull the head. I would assume that if you have washers under those nuts, you're not worried about points judging.

11-01-2016, 09:36 AM	#10
frank55a Senior Member Join Date: Jun 2010 Posts: 934	Re: Cylinder head bolts not protruding past top of nut after torque. Ford did not use washers under the head nuts. Unless Snyder's heads are now made thinner than they were a couple years ago (I doubt it) they are thicker than the original heads therefore there will not be as much thread exposed on the studs when the head is installed. You need the full thread for proper torqueing.