ML20100R492
| ML20100R492 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 10/31/1984 |
| From: | Cirilli J AFFILIATION NOT ASSIGNED |
| To: | Zeuthen A AFFILIATION NOT ASSIGNED |
| References | |
| OL-I-078, OL-I-78, NUDOCS 8412170429 | |
| Download: ML20100R492 (8) | |
Text
10 $l*ty o
SC dttSKAW To-32 2 O L
,[- ff-g'
/
/If
. s._-
&(
~
i i
9
/.p r i ? 14, l'E3 NS.n-83-190 Mr. t.. N. Zeuthtr Tr2p r+; o: t - Dt-sel G e :. c r e t o r r.
at Kan u s sno D.laval. Califcrnia Thic cycrt sur:artzes the findingt cr' A duel trip tc i:vc.t.x.te t'.a probable cause of the linear indice. ions found in 5 '.a ;. l. ?: 's Liesel hiocks, a.m d t., try and detercin-
- cir beh:v.. : during operatten rf the diesels.
The at:sched r. r i c s describe the activities an: results tFcreof, during the intesttgotive trip.
Ocacern'ng the cast iren (gray iron) blocks, the indfection cppear te be a result of the cacting precers and net tFc opcrecier ef the e r. g i n c s.
This is supported by the cagne tic particle tests' results performed on the cast blocks indicested 0
in the attached
.ctes.
.'. poscible cause for the indications n r..
be core shrinkege during casting.
li c r e, as the s o i r. e n iron is poured in the sold, a very thin layer of metcl solfdifics on the surfect of the core.
Therefore, a.
tbc core expends under he??,
the e x p a n,s i o r. causes a thin layer of solidified settl to crack.
Thus, surface crecks are forced fr.hese a r ca:..
Due to the geoectr> ci the told in certain arcus, t i. i s core eypane.iCS phenocens 'see=s likely.
In virving such indications on new cast bloc}s at L e;.T e v a l,. a n d on a block with 50,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> epcration ( i n.K'a n t a r. ).ft h,e'r c 'c e e t s,
to be no effect due to operation on t h e s e 3 nfi c a t f op.r.,-
,/
Therefore, it can be concluded that.'such itdicaplc6s do n'e t/ s e c e t
.to be a proble:- during o p e r a t i o r. ; thus; t h e y' p h'o u'fdgn oy
/
propagate; a r.d it did not appear a s t h o u g h' p r o p a'g a t'i e n o /c u r,r e d en the operating engine.
4* f<*
.+
e c
i t-e Of concern to the undersigned i of. the repair # Defeval cylinder heads,s,sSme perfutmed on the
.;> y b's t o f t h e s e' t c'p a iy$ a r e outlined in the attachment, how$ver. dope of Sh'o.rehag/s heads required veldir.g of a steel p i c c c' -[nJ/5. t h e,ea lv e h4't-face.due to an exictent crack (see attachment).* Jhis-repa'ir;91f not adequate, may cause severe damage te ithefenginef and en*; render the engine inopershle if.thfa weld faf!%c.*n? cat:1 fr.18 i n c.
the velee scots (er erg n.
ilack).
T fr r e. e r.:
- r. f e d that.. ! L. C 0
.h rec,uire.
the r.cuer d e s i g n h r..- d r. fron Lelr. cal, ed p.eclude tnc use cf any.ehuilt heads.
This may sece unnecessary, however,
~
if these diesels are to operate preperly under the p.encribed
}
conditions, LILCO should maintain a superior quality e r. g f e t.
j 8412170429 841031
-F PDR ADOCK 05000322
(
G PDR w
7
5 4
.,.c R,
gr*
4, 4
.~:w N,
s a s +g'g.\\* *'%
s.,
\\
- p
/
i f
h ' P.
E0LMETED K e n ': a s Muniefyal Tever Lincoln gK.nsas_
.T. u. e s 4/5 - Wed 4/6 '83
'84 l;0V-8 A10:05 Diesel In s; f n e identic I to that at Sherchau opera:icn.
5 0,0ppjJiod rs g...
u.ln>L w gg
- n c i r. e :
En crprise
~
I,1 v. of De'aval Turbine, Inc.
Oaklend, Califerr.ia So. 70036-2257; Date 12-27-70 Med. DCSR-4E; Pore & Stroke 17 x 21 (ruel feel gas /diescl)
I!. P. 35S5 G 400 RIM Full Lcad Diesci 34.5 MM Retetion Cleckvise Fuel Advance 20' BTC Valve Clearance; Inc 0.040, Ext 0. C '. 0, Start N/A Firfng o der 1-4-7-3-8-5-2-6 r
Torque Cyl. Head Nut 3000 yalves:
Con. Red Bearing Bolts & Nuts.675 (it-lbs)
Link Ccn Red Cap Screw N/A Main Bearing Scle Nut 1200 Can F:aring Cap Screv 120 Fuel Inj. Pu=p Stud Nut 80 Fuel Pump 3ase Cap screv 120
}
Foundation Ecle Net 1400 Hozzle Holder Fetciner Nut 75 Min Generator:
85% Lead Syn ET Cenerator KVA 3187.5 KW 2550 CJersting_Expertence:
o lvo cracked heads repaired by Det a 'e c l.
o Sn 5 citing prd ie:s.
e Other - Misc. ner:.a1 e p. r a t i n g, p r ' lt -
o Sun ct Tetps i i. 5 ' E 9 Ccvernor o
All instr. tubing secure
- f. 'nsniated f:aa each othcr (picturcc).
h e
Ecte only 4 cepport braclets (pic t t!. r).
/
Mac Tert Insp. Rer.ults:
Inspected No,'s E a n d 9 e n r.h a f t pillars.
Foun! fr.dications identi:a1 to S575 ( d i ri g r a m s ).
- _ - - - _ - - - - - - - - - - ~ ~
LV..
';; o er
- . <j
- g s
+
>:lC l
~-
l cE.L<
2-
.u 7
F Delava)'s operating test diesel engir.e was inspected for strain f-geoge pl,,acement in preparation for a test to censure the loads in the a'reas of concern.
This er.gine was sleo examincJ using magnetic particle and was found te have the same Jr.dicatione as ncted in the ether engines.
b A detailed trip report vill be the LILCO trip participants.
prepared by SWEC and reviewed by tr$$f V
.e -
J.
J.
Cirilli JJC/bd Attachments cc:
Mr.
R.
M. Kasesak I
9 e
f
- t. -
~
a Lincoln, Kansac - Ind. Found No. 9 t
\\
Tf
/ t-si4 A r T 7
No. P e
SitAFT a
9 a
a ll.
t e,,
e' N
f I
'I u
j '
,?!?
S
~;
} e ('.
- ~
1 e
T r a r. a s n e r i c a Delaval, Inc.
(IDI) 71 u c 4i'/53 Ditt f i t. t t Hag Test Tive (5) block C.. stings by LILC.'
o Fa1..ted Ilecks 3
6 cyl.
1 6 cyl.
- All had linear indicatiene like those fcund at SNTS A lincoln, Kar.sas Fr..:nted c
Block - Crude Casting Si=iJar indicatiens as r.oted above.
- Mag Part by TDI, also.
Sa:e results.
TDI Mag Part Exams all c
cyl. heads critical pares, i.e.,
pirtens etc.
Ve?d repair blecks enly i n
- s. r c a r, I
of ectpre ssion (coructic)
Ed Dobrec - Hgr. Cartings o
Cast biccks head side down
- better feeding of (SNPS cethed) iren o
TDI feels indicatiens due to:
h ci t spett shrink gepretty c
Shake-out
- by vcir.ht of castir.;
ucually 5-7 days o
Elce. Arc Tu r r. a c c e - Acil /. r e
(
Tco Lar*
~*st insidc c o r i-of entre!
- 'e l d F rcirs c-Ni Red 55 Cosretic c r. l y Mechanical fix if streirth ter'd.
(plug) o Zircon 5 Graphite Ceres Spectregraph checicals o
9
2 %if o :: ~; * -
g
.,/.
ll Fri 4/8 Cyl. Head Repair 1)
Each listed by S/N; trace to heat no. (4 heads / heat) 2)
Sincy SNPS (1974) Design TDI r e d e. s i g t. e d heads Letter F
3)
When cyl. head goes to Tri for terair:
a.
Disassemble b.
Clean i
c.
Water Test Casting d.
Die-Check Valve Sects e.
If Wall Thin (
3/4")
Weld Repair Grind Die-Check Fill with Mild Steci (if Pie-Check O.K.)
4)
Reconditioning of Valve Seats Machine scars to stellite depth plus 1/8".
- - Die-Check Layer cf bare cctal (r.ild steel butler pass)
- - Mach. & Die-Check Apply Stellite O-If Die-Check unsat.; excavate vcid, remachine & die-check.
e 6
j l
y-.
Io.'
",7
.1.
.g.
./
ft1 = %
o y
=
/-
g F
j.g 5)
Thin Side Wall
- Mill Side Weld Stiffener Bracket (Steel)
Re-build Bolt Holes l
i
\\/ : V ALVC.S Acca c r e m',i W #* N"'""
(f nco A Sr: r>')
O Q. O opf STirreacc. hcxcr
- $ e g D E T A te Y h,t ftt) o &*O Y-
^
~
OLJ y e r. *A" WEth "4 HEAD h
ha,\\Q J,
c Asroal;
'Q 1
l
(
r t
I
[
e Ah
',}
l#
I
?ttll) i 6 Cyl. Test Diesel at TDI:
o Mag No. 6& 7 Cam Shaft Pillars m o Mark Areas for Strain Cage Test o
Taint Indications Seen f.n,;,.
s.
'y h
rY -
l
,