| [ Total Views: 444 | Total Replies: 9 | Thread Id: 15600 ] |
|
|
 XXX-1.8T
Bishop of Volkswagenism
Posts: 3113
Threads: 454
Registered: October 9th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oil Drippin
|
| posted on November 10th, 2003 at 05:22 PM |
|
|
Engine Compression
Guys my mechanic reckons my engine has lost compression is this possible?
I cruised to Canberra and back no probs a month ago and the car hasnt been driven since. I took it to my mechanic as he recommended it needed the
Carby to be rebuilt. Rebuilt the carby but the car stalls every so often, he said his put 3 other carby but still it stalls.
he reckons it could be the compression is this possible - i last drove the damn thing a month ago and it was fine
Its a 1600TP Help please as im panicking!:bounce
|
|
|
Andy
Son of Jim - Creator of Good
Andy's Adventures
Posts: 2819
Threads: 181
Registered: November 5th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Pro Blue ( Default )
Mood: Happy Man
|
| posted on November 10th, 2003 at 05:31 PM |
|
|
Well, you obviously took it to the mechanic with a problem?? What are the symptoms?
An engine can have low compression and still appear to run OK. Only way to be sure is do a test yourself.
Andy
:thumb
|
|
|
XXX-1.8T
Bishop of Volkswagenism
Posts: 3113
Threads: 454
Registered: October 9th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oil Drippin
|
| posted on November 10th, 2003 at 05:41 PM |
|
|
Nah i didnt have a problem i just took it for a general service but then he rang me and said i should rebuild the carby....
Is it possible for my engine to die just cos its been sitting for a month?
Could it be it doesnt like what his done to the carby or carby's?
|
|
|
modulus
A.k.a.: Peter Hill
Veteran Volks Folk
Posts: 2009
Threads: 76
Registered: July 1st, 2003
Member Is Offline
Location: Melbourne
Theme: UltimaBB Pro White
Mood: modular
|
| posted on November 10th, 2003 at 05:51 PM |
|
|
Any good service-oriented garage or service centre should be able to give you an independent compression reading for all four for, say $20. That would
at least get rid of the ouji-board factor in what your mechanic is telling you.
You might then decide whether your current mechanic is right for you; something about throwin on 3 carbies and then blaming the stalling on
compression seems to me little bit less than fully transparent....
good luck
|
|
|
XXX-1.8T
Bishop of Volkswagenism
Posts: 3113
Threads: 454
Registered: October 9th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oil Drippin
|
| posted on November 10th, 2003 at 05:58 PM |
|
|
WOOOHOOOOO
did the compression test and it got 110 which is good
But the car still stalls when idling now if his rebuilt the original carby and put other carbys on maybe its no the carby's but something
else?
Could it be the Idle solonoid or maybe fuels not getting to the carby - fuel pump maybe?:bounce
|
|
|
 kombi_kid
Super Moderator
Good Kid too many projects
Posts: 124
Threads: 341
Registered: August 27th, 2002
Member Is Offline
Location: brisvegas
Theme: UltimaBB Pro Blue ( Default )
|
| posted on November 10th, 2003 at 06:42 PM |
|
|
check fuel pump by takin off fuel line goin into carby and crank it over let fuel go into container itr should be abit faster then a dribble.
also check what rpm ur idle is should be around 650-700 also check ur idle and fuel mix!
cheers
rhys
it aint just cool its aircool'd
|
|
|
 vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on November 10th, 2003 at 06:52 PM |
|
|
The compression test has to be done on all 4 cylinders. As long as there reasonably close then it should be OK.
Did the mechanic do a test on all 4 cylinders and what are the figures ???
|
|
|
XXX-1.8T
Bishop of Volkswagenism
Posts: 3113
Threads: 454
Registered: October 9th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oil Drippin
|
| posted on November 10th, 2003 at 06:55 PM |
|
|
We got 110
so the general consensus is that its the fuel pump,
can it be anything else?
|
|
|
KruizinKombi
A.k.a.: Col
Bishop of Volkswagenism
Seriously Obsessed Cyber Dubber
Posts: 3493
Threads: 104
Registered: August 25th, 2002
Member Is Offline
Location: Gippsland, Victoria
Theme: UltimaBB Pro Blue ( Default )
Mood: Indifferent
|
| posted on November 10th, 2003 at 06:57 PM |
|
|
I can't believe you mechanic can't tell you what the problem is. Sure he only did a general service, but he should be able to diagnose the
problem to some degree without all the guessing.
If the engine is stalling, my guess is a blocked idle solenoid, idle set too low, idle mix set incorrectly, carby linkages not adjusted properly, the
timing is out, or maybe you have a cracked dizzy cap, leads or dirty plugs. Considering that you have just had a service and a rebuilt carby put on,
none of these problems should exist without him knowing about it.
Take the car to someone who knows what they are doing. 
Edit: If it was the fuel pump, the problem would be more evident under power or at revs....
Kruizin Kol
|
|
|
vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on November 10th, 2003 at 07:02 PM |
|
|
So is taht 110 lbs on all 4 cylinders ??? or just the one and there saying that the others are OK ??? So whos your compression tester ???
|
|
|
helbus
A.k.a.: Pete S
Super Administrator
Mad fabricator, paint and body
Posts: 7386
Threads: 312
Registered: September 1st, 2002
Member Is Offline
Location: In the garage chopping cars into bits
Theme: UltimaBB Pro Blue
Mood: In the thinking chair
|
| posted on November 10th, 2003 at 07:28 PM |
|
|
Some of the obscure problems I have encountered over the years.
A dud new spark plug I fitted (Bosch - made in India now). Motor wouldn't idle properly. Another new plug (NGK) and it was fine.
Poor idling, erratic, high then low, tuning carbies would not help. Turned out to be worn baseplate in the distributor.
Valves needed adjusting. I fixed this one
These are some examples of poor idling I have had that are not related to the carbies. There have also been times the carbies have been at fault.
My mechanic has diagnosed the faults on these occasions when I couldn't.
|
|
|
sikdub
Wolfsburg Wizard
Posts: 571
Threads: 11
Registered: August 26th, 2002
Member Is Offline
Location: Country Vic
Theme: UltimaBB Pro Blue ( Default )
Mood: svweet
|
| posted on November 10th, 2003 at 09:33 PM |
|
|
are you sure your mechanic is actually a mechanic??? Ive had enough people around here that dont even know which end the engine is in my car.....
Steven
|
|
|
