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Topic: My 8.3C Exhaust Manifold removal (Read 4217 times) previous topic - next topic

Re: My 8.3C Exhaust Manifold removal

Reply #50 –
Quote from: John Haygarth –
repaired many many bad threads in Deltic Diesel Engines in England with Helicoil inserts and other applications. never (that I know of) any issues and these engines pumped out mega HP.
I seem to recolect also using them in Helicopter rebuild situations (Sundstrand).
They were all we used in the 60's.
JohnH

Timeserts are oem line repairs for gm and Chrysler for damaged holes. 
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: My 8.3C Exhaust Manifold removal

Reply #51 –
Bob.. 

I have a complete Helicoil repair kit. 
Used it for decades without issue.
(Never buy a used manifold for a diesel!)  pc
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..

Re: My 8.3C Exhaust Manifold removal

Reply #52 –
Quote from: pocketchange –
Bob.. 

I have a complete Helicoil repair kit. 
Used it for decades without issue.
(Never buy a used manifold for a diesel!)  pc

Then use it.....

Just saying technology is changing.  Look at the Timesert itself.  Solid sleeve versus threads only.  Not saying yours does not work but my tap R&D,oval guy only uses Timeserts.

Jerry's broken tap and die removal.  Santa Ana, ca.  I donate occasionally to him.
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: My 8.3C Exhaust Manifold removal

Reply #53 –
Excellent transition from the Helicoil..

Thanks for the suggestion.  pc
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..

Re: My 8.3C Exhaust Manifold removal

Reply #54 –
Threaded inserts are the new awesome. Various different brands, but all are pretty dang good.
1998 U270 34'

Re: My 8.3C Exhaust Manifold removal

Reply #55 –
Actually, not so new.

Used them in the early 1970's on 1968- 1970 VW air cooled cases.  They used a soft alloy and the head studs pulled out.  We overdrilled the holes in the case, tapped and installed what we called "case savers". Nothing more than inserts.  But, they more than doubled the area over which the force was applied-- it was a permanent fix.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: My 8.3C Exhaust Manifold removal

Reply #56 –
Quote from: wolfe10 –
Actually, not so new.

Used them in the early 1970's on 1968- 1970 VW air cooled cases.  They used a soft alloy and the head studs pulled out.  We overdrilled the holes in the case, tapped and installed what we called "case savers". Nothing more than inserts.  But, they more than doubled the area over which the force was applied-- it was a permanent fix.
So the timesert is the more sure thing when we revisit?
By the way, drove 300 miles this weekend with no issue. boost pressure held at 25 psi max at end of trip.
I am on the verge of removing radiator and going through cooling and air system back to manifold. New cooling fans then opening up exhaust with larger resonator type stainless deal. Muffler back is showing its age!
Tom
1998 U320 40'