Bujii NGK 97725(101000026AA)

La motoarele cu alimentare pe benzina , bujia , reprezinta elementul sistemului de aprindere , care are rolul de a produce scanteie , intre electrozii acesteia , care sa aprinda amestecul carburant din camera de ardere . O bujie , se compune dintr-un electrod pozitiv , amplasat central , alimentat de bobina de inductie , unul lateral , negativ , legat la corpul bujiei , corpul metalic exterior , care se insurubeaza in chiulasa , izolator ceramic , care izoleaza electrodul central , garnituri de etansare din praf de caolin presat , amplasate in zona de contact dintre corpul metalic al bujiei si izolatorul ceramic si piulita de contact , prin care se alimenteaza bujia . Bujia , indeplineste un rol esential , in functionarea motorului , alegandu-se functie de caracteristicile acestuia . Daca o bujie este prost aleasa , incalzirea izolatorului la temperaturi de peste 900 de grade celsius , poate duce la aprinderi secundare ale amestecului carburant , cauzand motorului pierderi de putere si o functionare cu batai . Bujia este dimensionata sa respecte mai multe cerinte : - valoarea termica , care reflecta capacitatea bujiei de a transmite caldura din camera de ardere , inspre mediul ambiant , ea fiind supusa , in timpul functionarii , unor solicitari termice extreme , datorate diferentelor de temperatura dintre partea care intra in camera de ardere si partea expusa mediului exterior . -rezistenta mare la solicitari electrice , aprox 5000 de volti in timpul functionarii normale ,putand ajunge , pana la 12000 de volti , la pornirea de la rece . -solicitari mecanice , care intervin in cilindri , datorita variatiei presiunii gazelor , dar si a trepidatiilor , care apar in timpul functionarii . Se deosebesc doua tipuri de bujii , calde si reci ., cele calde avand valori termice mai mari . Durata de viata a unui set de bujii este de aproximativ 60.000 de kilometri . La motoarele noi , generarea scanteii la fiecare bujie , este controlata de catre calculatorul de injectie . -

Pentru:

AUDI 80 (8C, B4) 1.6 1991-1994 71CP (52 KW) 1595cmc,

VW POLO (86C, 80) 1.3 KAT 1987-1994 55CP (40 KW) 1272cmc,

VW POLO (86C, 80) 1.0 KAT 1989-1994 45CP (33 KW) 1043cmc,

VW PASSAT (3A2, 35I) 1.6 1988-1991 72CP (53 KW) 1595cmc,

VW PASSAT (3A2, 35I) 1.8 1990-1996 75CP (55 KW) 1781cmc,

VW TRANSPORTER IV Bus (70XB, 70XC, 7DB, 7DW) 2.5 Syncro 1992-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV Bus (70XB, 70XC, 7DB, 7DW) 2.5 1990-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV Bus (70XB, 70XC, 7DB, 7DW) 2.0 1990-2003 84CP (62 KW) 1968cmc,

VW GOLF III (1H1) 1.4 1991-1997 55CP (40 KW) 1390cmc,

VW GOLF III (1H1) 1.8 1991-1997 75CP (55 KW) 1781cmc,

VW GOLF III (1H1) 1.4 1991-1997 60CP (44 KW) 1390cmc,

VW VENTO (1H2) 1.4 1991-1998 60CP (44 KW) 1390cmc,

VW VENTO (1H2) 1.8 1991-1998 75CP (55 KW) 1781cmc,

VW GOLF III Variant (1H5) 1.4 1993-1999 55CP (40 KW) 1390cmc,

VW GOLF III Variant (1H5) 1.4 1993-1999 60CP (44 KW) 1390cmc,

VW GOLF III Variant (1H5) 1.8 1993-1999 75CP (55 KW) 1781cmc,

VW GOLF III Cabriolet (1E7) 1.8 1993-1998 75CP (55 KW) 1781cmc,

VW PASSAT Variant (3A5, 35I) 1.6 1988-1991 72CP (53 KW) 1595cmc,

VW PASSAT Variant (3A5, 35I) 1.6 1988 75CP (55 KW) 1595cmc,

VW PASSAT Variant (3A5, 35I) 1.8 1990-1997 75CP (55 KW) 1781cmc,

VW POLO Coupe (86C, 80) 1.0 KAT 1989-1994 45CP (33 KW) 1043cmc,

VW POLO Coupe (86C, 80) 1.3 KAT 1987-1994 55CP (40 KW) 1272cmc,

SEAT IBIZA II (6K1) 1.0 1993-1996 45CP (33 KW) 1043cmc,

SEAT IBIZA II (6K1) 1.3 i 1993-1999 54CP (40 KW) 1272cmc,

SEAT CORDOBA (6K1, 6K2) 1.4 i 1994-1999 60CP (44 KW) 1390cmc,

SEAT IBIZA II (6K1) 1.4 i 1993-1999 60CP (44 KW) 1390cmc,

SEAT TOLEDO I (1L) 1.6 i 1993-1999 75CP (55 KW) 1595cmc,

SEAT INCA (6K9) 1.6 i 1995-1998 75CP (55 KW) 1595cmc,

VW TRANSPORTER IV caroserie (70XA) 2.0 1990-2003 84CP (62 KW) 1968cmc,

VW TRANSPORTER IV caroserie (70XA) 2.5 1990-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV caroserie (70XA) 2.5 Syncro 1992-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV Bus (70XB, 70XC, 7DB, 7DW) 2.5 Syncro 1996-2003 115CP (85 KW) 2461cmc,

VW TRANSPORTER IV Bus (70XB, 70XC, 7DB, 7DW) 2.5 1996-2003 115CP (85 KW) 2461cmc,

VW TRANSPORTER IV platou/sasiu (70XD) 2.5 1990-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV platou/sasiu (70XD) 2.5 Syncro 1992-2003 110CP (81 KW) 2461cmc,

VW TRANSPORTER IV platou/sasiu (70XD) 2.0 1990-2003 84CP (62 KW) 1968cmc,

VW TRANSPORTER IV platou/sasiu (70XD) 2.5 1996-2003 115CP (85 KW) 2461cmc,

VW TRANSPORTER IV platou/sasiu (70XD) 2.5 Syncro 1996-2003 115CP (85 KW) 2461cmc,

VW TRANSPORTER IV caroserie (70XA) 2.5 1996-2003 115CP (85 KW) 2461cmc,

VW TRANSPORTER IV caroserie (70XA) 2.5 Syncro 1996-2003 115CP (85 KW) 2461cmc,

VW GOLF IV Cabriolet (1E7) 1.8 1998-2002 75CP (55 KW) 1781cmc,

VW POLO caroserie (86CF) 1.0 1992-1994 45CP (33 KW) 1043cmc,

VW POLO caroserie (86CF) 1.3 1992-1994 54CP (40 KW) 1272cmc,

VW POLO caroserie (6NF) 1.0 1994-1999 45CP (33 KW) 1043cmc,

SEAT CORDOBA (6K1, 6K2) 1.6 i 1994-1999 75CP (55 KW) 1595cmc,

VW POLO CLASSIC (6KV2) 75 1.6 1995-1997 75CP (55 KW) 1595cmc,

VW CADDY II caroserie (9K9A) 75 1.6 1995-1997 75CP (55 KW) 1595cmc,

VW CADDY II combi (9K9B) 1.6 1995-1997 75CP (55 KW) 1595cmc,

SEAT IBIZA II (6K1) 1.6 i 1994-1999 75CP (55 KW) 1595cmc,