Issue * came across harvesting a MAf today
The MAf on NA cars are made by DENSO and mount with two M6 (10mm head ) bolts
The bolts are typical steel but bolt into brass threads fused into the air cleaner
I had bad galvanic corrosion on one of mine, so bad the fused and broke the threaded insert ou to the plastic
I had to Dremel it put and re-epoxy the insert into the MAF
Check your cat too, while you test your bolts.
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P80 NA DENSO MAF mount bolts issue 1275636
- abscate
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P80 NA DENSO MAF mount bolts issue 1275636
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
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A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
- erikv11
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Re: P80 NA DENSO MAF mount bolts issue 1275636
Denso is 99+ cars only. 98 and prior are Bosch, different part.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6
130k
gone: '96 NA 850 210k, '98 NA V70 182k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6

gone: '96 NA 850 210k, '98 NA V70 182k
- wizechatmgr
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Re: P80 NA DENSO MAF mount bolts issue 1275636
Your cats appear to be bad, both are missing their precious metals =P
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~193k miles
1998 V70 2.4 NA -- ~180k miles
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~193k miles
1998 V70 2.4 NA -- ~180k miles
- volvolugnut
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Re: P80 NA DENSO MAF mount bolts issue 1275636
The cats also look dark - may need cleaning. Might be too rich condition.
(why you always want to logon and see the details and not just the text)
volvolugnut
(why you always want to logon and see the details and not just the text)
volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.
- erikv11
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Re: P80 NA DENSO MAF mount bolts issue 1275636
I see you got each cat to face the tail pipe, but now they flow in opposite directions???!!!
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6
130k
gone: '96 NA 850 210k, '98 NA V70 182k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6

gone: '96 NA 850 210k, '98 NA V70 182k
- abscate
- MVS Moderator
- Posts: 23780
- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
- Has thanked: 443 times
- Been thanked: 1339 times
Re: P80 NA DENSO MAF mount bolts issue 1275636
Clarifying a bit more
The design is m6 bolt, clearance. Brass boss on air cleaner housing, threaded brass m6 insert in MAF, two pieces.
Look how the bolt corroded in the brass boss, but not in the insert.
Strange. When I went to unscrew this it locked up in both, then broke the insert out of the MAF. It was also locked into the brass boss.
The design is m6 bolt, clearance. Brass boss on air cleaner housing, threaded brass m6 insert in MAF, two pieces.
Look how the bolt corroded in the brass boss, but not in the insert.
Strange. When I went to unscrew this it locked up in both, then broke the insert out of the MAF. It was also locked into the brass boss.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
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