1.5 JB engine
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- Car Model: Golf Mk1
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1.5 JB engine
Hi there guys. Yesterday i bought an engine that was advertised as a 1.6L. The engine code is JB and when i checked this morning...JB's are actually 1.5 . My plan was to stroke the engine to build a 1.9(if it was 1.6) but then i dont know what do with this engine. Currently i got a 2l 8v i just installed but my wish was to build a 1.9. Guys is it possible to even put a 1.8 crank and pistons into this stupid engine.
- panic-mechanic
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Re: 1.5 JB engine
No. That is a previous series motor used in the mk1 from 78 to 81. They have different size main bearings and rods and does not fit the modern stuff. the modern heads also don't fit as they are missing a oil return channel.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Enlisted
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Re: 1.5 JB engine
I am going to sell it as well. I might as well look for somene willing to swop the JB
engine with a complete 1.8 sub assembly.
engine with a complete 1.8 sub assembly.
- Neuk
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Re: 1.5 JB engine
Yep, JB's were fitted to Golf GLS's from '78 to '81 locally but were used from '77 to '84 in Golf's, Jetta's, Caddy's and Scirocco's. They are 1457cc in capacity despite the heads having 1.6 markings on them and the engines looking very similar to 1.6's from the same era.
Current Garage:
Daily Drive: 2014 VW Touareg 3.0 V6 TDi R-Line
Project Fes: 1982 VW Golf GLS 1.5
Project FeO: 1966 VW Type 2 Transporter Kombi Split Window
Previous Garage:
Roxy: 2015 VW Golf R
Vagon: 2005 Audi B6 A4 1.8T (140kw) Avant
Project XXXX: 1967 VW Type 3 Variant (Squareback)
Project Betty: 2005 Polo 1.9 TDI (PD130) Sportline
Weekend Warrior: 1993 Volkswagen Caddy 2.0 16v ABF on ITB's
Daily Drive: 2014 VW Touareg 3.0 V6 TDi R-Line
Project Fes: 1982 VW Golf GLS 1.5
Project FeO: 1966 VW Type 2 Transporter Kombi Split Window
Previous Garage:
Roxy: 2015 VW Golf R
Vagon: 2005 Audi B6 A4 1.8T (140kw) Avant
Project XXXX: 1967 VW Type 3 Variant (Squareback)
Project Betty: 2005 Polo 1.9 TDI (PD130) Sportline
Weekend Warrior: 1993 Volkswagen Caddy 2.0 16v ABF on ITB's
- panic-mechanic
- Panic's Place
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- Location: Benoni, putfontein.
Re: 1.5 JB engine
I have a Hm - ie 1.6 carb motor from a citi that has a knock so it has to be rebuilt. it is head and complete block with nothing else
Give me a shout if you interested. cheap
Give me a shout if you interested. cheap
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- missioner
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- Car Model: '87 MK1 Golf Citi
Re: 1.5 JB engine
By the sounds of it it seems the JB has more in common with a GY (1.3) than the larger motors.
'87 Golf 1 Olde Skewl OEM+
- panic-mechanic
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Re: 1.5 JB engine
Not at all. GY has the same crank centre bearing journal and BE pin dimensions as the later motors. IE you can drop any crank from '85 onwards into a GY. (1.3 , 1.6 , 1.8 and even 2l crank)
FR(1.6 gts) and JB(1.5 GLS) was Unique and different from the later engines. The later motors are all easy to distinguish- there is a hump on the front of the cylinderhead that has the bigger oil return. Those all have the same crank pin dimensions.
although the look relatively similar and drops into the same mounts those engines had very much different internal dimensions.
FR(1.6 gts) and JB(1.5 GLS) was Unique and different from the later engines. The later motors are all easy to distinguish- there is a hump on the front of the cylinderhead that has the bigger oil return. Those all have the same crank pin dimensions.
although the look relatively similar and drops into the same mounts those engines had very much different internal dimensions.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Lieutenant
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Re: 1.5 JB engine
Interesting to read. I drove an FR for many moons and never knew that it was so different from the other, later engines. Never noticed that it doesn't have the oil return casting that the HM does have.
Mark R.
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2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
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- - - - - - - - - -
2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
- - - - - - - - - -
- missioner
- Major
- Posts: 3987
- Registered for: 10 years 3 months
- Car Make: VW
- Car Model: '87 MK1 Golf Citi
Re: 1.5 JB engine
That's good to know.panic-mechanic wrote:Not at all. GY has the same crank centre bearing journal and BE pin dimensions as the later motors. IE you can drop any crank from '85 onwards into a GY. (1.3 , 1.6 , 1.8 and even 2l crank)
FR(1.6 gts) and JB(1.5 GLS) was Unique and different from the later engines. The later motors are all easy to distinguish- there is a hump on the front of the cylinderhead that has the bigger oil return. Those all have the same crank pin dimensions.
although the look relatively similar and drops into the same mounts those engines had very much different internal dimensions.
A mate of mine had an '83 1.6l with the water port between cylinder 1 and 2, the head was badly corroded and blew the head gasket. Anyway a newer head was sourced as replacement, but it didn't fit properly. Now I know more about why.
Thanks Panic.
'87 Golf 1 Olde Skewl OEM+